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1139 SMT / PCB Assembly Related Technical Articles

Difference between Neutral and Acid Salt Spray Corrosion Test

Dec 13, 2019 | climatest symor

Salt spray corrosion chamber can test the ability of material and its protective layer to resist salt mist corrosion, or compare the process quality of similar protective layers, at the same time; this equipment is suitable for parts, electronic components, protective layer of metal material and other industrial products. Salt spray test is divided into neutral and acid test. What is the difference between neutral and acid in salt spray test? First, the temperature applied in the test method is different: Neutral test: a. Laboratory:35°C ±1°C, b. Saturated air drums:47°C ±1°C Acid test: a. Laboratory:50°C ±1°C, b. Saturated air drums:63°C ±1°C Second, the production material is different,neutral test chamber adoptes the traditional PVC plates, acid test chamber asopts PP sheet,which is more high temperature resistance and suits strong acid test. Third. Different test methods satisfied Neutral salt spray chamber according to GB/T 2423.17-2008, GB/T 2423.18-2000< basic rules for electrical and electronic products test Ka >, salt spray test method and GB/T 10125-1997, GB/T 10587-2006, GB10593.2-1990, GB/T 1765-1979, GB/T 1771-2007, GB/T 12967.388, GB/T 1705.8-2008, etc. In addition to the test methods specified in the national standard, acid salt spray chamber also needs to expand the standard setting such as IEC,MIL,DIN,ASTM,IS,CNS. Last, Comparison of neutral test solutions China: NaCI distilled water solution NaCI mass concentration (50 ±5) g ≤ l pH value 6.5 ≤ 7.2 United States: distilled water solution NaCI mass concentration 5% ±1% pH value 6.5 ≤ 7.2 Germany: NaCI distilled water solution NaCI mass concentration (50 ±5) g ≤ l pH value 6.5 ≤ 7.2 Japan: NaCI distilled water solution NaCI mass concentration 5% ±1% pH pH value 6.5 ~ 7.2 France: NaCI distilled water solution NaCI mass concentration 5% pH 6.5 ≤ 7.2 https://climatechambers.com/articles&latestnews/difference-between-neutral-and-acid-salt-spray-corrosion-test.html...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Voids in Solder Joints

Dec 12, 2019 | Raiyo Aspandiar

Presented at SMTA Boise Expo and Tech Forum, March 20, 2018...

Publisher: Intel Corporation

Intel Corporation

Intel designs and builds the essential technologies that serve as the foundation for the world's computing devices.

Santa Clara, California, USA

Manufacturer of Components

What causes temperature humidity chamber to alarm?

Dec 12, 2019 | climatest symor

Today we discuss the reason that causes temperature humidity chamber to alarm,In most cases, the equipment alarm is caused by the improper operation in the process of use, which mainly includes following reasons:that are refrigeration system, temperature system and circulating system. First, Refrigeration system 1, refrigeration compressor overpressure alarm. If the refrigerant pressure exceeds the set value, it will stop and alarm at the same time. At this time, the fault must be eliminated and then manually reset. 2, short phase power supply, phase sequence alarm. When the external power supply of the equipment is out of phase or the phase sequence is changed, it will stop and alarm at the same time. 3. The circulating cooling water is short of water to alarm. When the water pressure of the cooling circulating water system is insufficient, it will stop and alarm at the same time, and it must wait for the fault to be eliminated and reset at the same time before it could run normally. 4, refrigeration compressor overheating alarm. When the coil of the compressor is overheated and the power supply of the line is not normal, it will stop and alarm at the same time. Second, Temperature system 1, the overtemperature alarm in the chamber. The sensors in the channel and the sample area are equipped with overtemperature protection devices, and there are also overtemperature protecter on the control panel. When the temperature in the working chamber exceeds the setting value on the controller, it will stop and alarm. 2. sample overtemperature protection. When the temperature in the sample area exceeds the protection temperature set by the controller, it will stop and alarm at the same time. The overtemperature protection of the sample is divided into upper limit protection and lower limit protection, which can be set according to the demand, Third,Circulating system 1. The alarm is caused by the overheating of the circulating fan. When the coil of the fan is over-heated, the alarm will be stopped at the same time. 2. The fan over-current alarm. When the current of the fan exceeds the allowable value, the alarm is stopped at the same time, and the normal operation can only be carried out after the fault maintenance of the overcurrent is completed. This is what we talk about today,if you have more questions,let us know....

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Masking for Conformal Coatings

Dec 05, 2019 | ACI Technologies

Conformal coatings are regularly employed to protect the surface of a soldered printed circuit board assembly from moisture, chemicals in the PCBA's service environment, and foreign objects or debris. Conformal coatings are nonconductive and therefore cannot be placed on any location where electrical contact will be required, such as connector pins, test points, and sockets. Conformal coatings are also not permitted on any mechanical interface location, such as mounting holes or brackets, to assure the proper fit between items in the final assembly. In order to apply conformal coatings to an assembly and comply with the restrictions on keep-out areas, masking is employed to protect those surfaces. ...

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Key Technology Choices For Optimal Massive IoT Devices

Nov 26, 2019 | Claes Lundqvist, Ari Keranen, Ben Smeets, John Fornehed, Carlos, R.B. Azevedo, Peter Von Wrycza

The latest cellular communication technologies LTE-M and NB-IoT enable the introduction of a new generation of IoT devices that deliver on the promise of scalable, cost-effective massive IoT applications using LPWAN technology. However, a few key technology choices are necessary to create IoT devices that can support the multitude of existing and emerging massive IoT use cases.....

Publisher: Ericsson AB

Ericsson AB

Ericsson AB manufactures and markets radio and television communication equipment. The company was formerly known as Ericsson Radio Systems AB. Ericsson AB (Sweden) operates as a subsidiary of Ericsson.

Stockholm, Sweden

Other

Why salt spray chamber fail to spray salt mist?

Nov 20, 2019 | climatest symor

Salt spray test chamber is used to test teh salt corrosion resistance ability of hardware, metal and other auto parts,the chamber can quickly detect the corrosion resistance degree of products in the temperature, humidity and salt spraying environment, which can effectively improve production efficiency. So what is the reason why such a salt spray test chamber does not spray? As per our past maintenance experience,there are below reasons,customers can have a look,hope it is helpful: 1, the spray tower is blocked; 2, water pipes clogged, water flow can not go in; 3, the air compressor stops running,pls open the air compressor button; 4, main switch of the air compressor outlet is not turned on,pls turn on. 5, the solenoid valve fails, the pressure meter is broken or the pressure is too low, pls check with Climatest and repair it. 6, when the nozzle is clogged, the nozzle should be carefully removed and cleaned,because it is fragile. 7, if the spray pressure is normal, the position of the nozzle glass is also correct, but what is the reason for not spraying? In this case, it is necessary to carefully observe whether there is dirt at the contact surface of the nozzle. If so, clean up the dirt and the spray can be carried out normally. That‘s all we‘re going to talk about today. If you have any questions, follow us on facebook, Please feel free to ask us questions....

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

5G - The Future of IoT

Nov 20, 2019 | 5g Americas

5G: The Future of IoT takes a look at the market drivers, trends and cellular technology solutions that will create our connected future.</p><p> Market drivers provide added value through connectivity of all “things” ranging from street lighting to home appliances to industrial robotics. Providing connectivity to things has become easier with improvements in the economics of end devices, large investments in IoT systems, adoption of global standards and availability of spectrum. Overall trends in information technology such as cloud computing and edge cloud, artificial intelligence and security assurance have accelerated the IoT ecosystem. The whitepaper discusses some of the market segments in more details, including industrial IoT, smart cities, enterprise IoT and consumer IoT....

Publisher: 5G Americas

5G Americas

5G Americas advocates for and facilitates the advancement of 5G and the transformation of LTE networks throughout the Americas.

Bellevue, Washington, USA

Association, Non-Profit

Maintenance and operation of walk-in temperature humidity test chamber

Nov 17, 2019 | climatest symor

Overview of walk-in temperature and humidity chamber: It also belongs to environmental test equipment, it tests whether the product can resist high temperature, low temperature, humidity, or the physical and chemical changes produced under extreme conditions, the walk-in temperature and humidity chamber volume is large, the product is placed, or a large object can be placed, such as automobile, new energy, television and liquid crystal screen, etc. How to do the routine maintenance of the walk-in temperature and humidity chamber: 1. The wet gauze basically, if there is no special case, s/b usually changed once in 3 months 2. The water channel shall be regularly cleaned, including water cup, water tank, etc., so as to prevent the water from being blocked,affect the humidity test. 3. It is forbidden to test the flammable and explosive products inside working room. 4. Clean the chamber on a regular basis 2. How to operate walk-in temperature and humidity chamber: The operation method is same as standard temperature humidity test chamber,the controller is 7-inch LCD programmable color screen, you only need to setthe temperature point---test time--how many cycles need to be tested, This can be done automatically, and the machine will stop automatically when it is complete. If there is any problem during the operation, the corresponding problem point will be displayed on the machine control screen. Walk-in temperature and humidity chamber is a must equipment for reliability test of Automobile,Aerospace,Electronic parts,etc,the operation and maintenance are easy,it is teh tear down mahcine,Climatest engineers will be dispatched to do on-site support,for instance,we will finish commissioning,train customers how to operate,maintain,welcome to follow our company facebook page:https://www.facebook.com/Climatechambers...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Material Aging Test-UV Weathering Test Chamber

Nov 15, 2019 | climatest symor

Material Aging Test-UV Weathering Test Chamber 1.What is UV aging? UV aging chambers use fluorescent ultraviolet lamp as light source to simulate UV radiation and condensation in natural sunlight, and to carry out accelerated weather resistance test in order to obtain the result of weather resistance of the material. UV aging detection is widely used in non-metallic materials, organic materials (such as coatings, paints, rubber, plastics and their products) under the change of sunlight, humidity, temperature, condensation and other climatic conditions to test the aging degree and situation of related products and materials. 2.Why we should do UV aging test? When the product is placed in the ambient environment, there will be different problems taken place, such as appearance changes, including cracking, speckle, powdering or color change, and even performance degradation,which may be due to the loss of components in the resin resulting in chemical bonds changes inside the molecular structure, this is mainly caused by sunlight, industrial exclusion of waste gas, bacteria and so on. The aging performance of the product directly affects the lifespan of the product, so aging test become significant,non-metallic materials, organic materials (such as paints, paints, rubber, plastics and their products) are subject to changes in sunlight, humidity, temperature, condensation and other climatic conditions to test the degree and condition of aging of related products and materials. The natural aging test is to put the plastic specimen under the sun exposure, and it is directly under the natural climate environment,to test the material performance under various factors such as light, heat energy, atmospheric humidity, oxygen and ozone, industrial pollution and the like, the most harsh climate condition should be selected,or near the actual application area of the material, the test site shall be open and flat, no obstacle to affect the test results,the specimen holder shall be facing the equator and at an angle of 45 ° from the ground. When the main performance index of the specimen has been reduced, the test s/b terminated when it achieve the minimum allowable use value . in most case,the test is terminated when the product primary performance index falls to 50% of the initial value. The natural aging process is a very slow process, and there is a great difference in different geographical conditions, which brings difficulties to evaluate the aging resistance of the product. It is an attempt to make an evaluation of the aging performance of the plastic in a shorter time,that is accelerated aging test. The accelerated aging test can be used to simulate the human light source of the fluorescent lamp, including the carbon arc lamp, the xenon arc lamp and the fluorescent ultraviolet lamp, and the artificial light sources can generate more light than the natural sunlight on the ground. When these artificial light sources are used, it is also common to use the combination of the condenser to simulate the rain drop, the dew and the like to conduct the aging test on the product....

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Fiber Optic Cabling

Nov 13, 2019 | ACI Technologies, Inc.

Fiber optic harnesses appear simple, but they have been designed to maintain all of the critical areas of aligning two fibers and minimize the losses associated with a break in the transmission path. In order to understand how the connectors overcome alignment issues, we must first understand the issues. Fiber optic communications networks use specific wavelengths of light (or colors) to transmit information through a clear fiber at high speed. They use the property of internal reflection along the fiber’s axis to contain the light and keep the optical power high enough to be detected at the receiving end. ...

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Serious to make dry oven

Nov 13, 2019 | climatest symor

Dry oven is a must instrument almost for every laboratory in different industries,with nearly 20 years efforts and innovation,Climatest now masters core technique of dry oven manufacturing,no matter on temperature uniformity or temperature stability.Behind the quality is 15 years of consistent persistence,strong belief in excellence; from design to R & D to production, from promotion to sales to installation; every step should reach excellence,What you see, you use our products, you choose, you feel that we do our best,this is our faith. Dry Ovens are used to dry or temper electronic components,material tests,torrefaction, wax-melting ,high temperature aging ,preheating and sterilization in industrial and mining enterprises, laboratories and scientific research institutes. .Exterior chamber is made by reinforced steel with painting; working chamber made by anti-corrosion stainless steel SUS#304 .Intelligent PID control, LED controller with over-temperature alarm,timing range within 0~9999min .Hot air circulation system composed of Germany imported low-noisy air blower and optimal air duct which ensure uniform temperature distribution .Double layers of glass door, large transparent window to observe specimen .Forced air convection Climatest manufactures desktop and floor-standing models with RT+10°C-200°C,250°C,300°C,350°C,400°C temperature range,and customized as per special requirement,if you wanna know more details about our dry oven,please visit our product page:https://climatechambers.com/industrial-dry-oven/200-degree-c-hot-air-oven.html...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

How to inspect the temperature recovering time of thermal shock chamber?

Nov 12, 2019 | climatest symor

Thermal shock test chamber can be used for testing the chemical change or physical damage on composite materials caused by the thermal expansion and contraction of the sample in the shortest time,which is subjected to extremely and continuous high and low temperature environment.so how to check the temperature recovery time of this chamber? Normally we take following steps to inspect the temepratuire recovering time: 1.Install the temperature sensor at the specified position, and adjust the temperature controller of hot zone and cold zone to the required nominal temperature respectively. 2.The temperature increases and reduces respectively,30min after temperature in two zones reach stable status,record temperature value of the measuring point,pls set the temperature value of two zones to be required nominal temperature. 3.The temperature shock test chamber automatically places the inspected load into theh ot zone,select the corresponding retention time according to regulated standard. 4.Set the transfer time,then the inspection load is transferred from hot zone to cold zone, and the temperature of the measuring point is observed and recorded, and then the reverse conversion of the load from cold zone to hot zone is carried out according to the same method, and the temperature of the measuring point is observed and recorded. www.climatechambers.com...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Origin and Quantification of Increased Core Loss in MnZn Ferrite Plates of a Multi-Gap Inductor

Nov 07, 2019 | Dominik Neumayr, Dominik Bortis, Johann W. Kolar, Stefan Hoffmann, Eckart Hoene

Inductors realized with high permeable MnZn ferrite require, unlike iron-powder cores with an inherent dis-tributed gap, a discrete air gap in the magnetic circuit to prevent saturation of the core material and/or tune the inductance value. This large discrete gap can be divided into several partial gaps in order to reduce the air gap stray field and consequently the proximity losses in the winding. The multi-gap core, realized by stacking several thin ferrite plates and inserting a non-magnetic spacer material between the plates, however, exhibits a substan-tial increase in core losses which cannot be explained from the intrinsic properties of the ferrite. In this paper, a comprehensive overview of the scientific literature regarding machining induced core losses in ferrite, dating back to the early 1970s, is provided which suggests that the observed excess core losses could be attributed to a deterioration of ferrite properties in the surface layer of the plates caused by mechanical stress exerted during machining....

Publisher: Power Electronic Systems Laboratory (PES)

Power Electronic Systems Laboratory (PES)

The research projects at the PES cover a wide range of application areas and all basic forms of power electronic energy conversion

Zurich, Switzerland

Research Institute/Laboratory

When you pull out the nitrogen pipe of nitrogen cabinet

Nov 07, 2019 | climatest symor

Many customers who have purchased the nitrogen cabinets have been in the mistaken belief that the air pipe can be pull down hard,so that it can cause the board to be damaged due to the hard pulling of the air pipe, which leads to the replacement of the penetrating board. Now, the following pictures are provided. Please note: Nitrogen cabinet is a optiomal choice for the microelectronics,semiconductor for humidity proof and anti-oxidation purpose,Climatest has put much efforts on the R&D of dry cabinets,as you know,our advangtage is to handle temperature and humidity,since early 1990s,our engineers began to test and research dry cabinet and nitrogen cabinet,all of our manufacturing process strictly follow ISO9001 standard,we supply to international customers for 20 years,if you are still looking for a reliable dry cabinet manufacturer to protect your MSD from moisture related damage,come to visit www.climatechambers.com,we are ready!...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Breif introduction of salt spray test chamber

Nov 05, 2019 | climatest symor

Everyone know that iron can not get wet,it is easy to rust. Although I don‘t know what the principle is at first, according to the facts, it is. Most of the corrosion of metal materials occurs in the atmospheric environment, the atmosphere contains oxygen, humidity, temperature changes and pollutants and other corrosion components and corrosion factors. Salt fog corrosion is one of the most common and destructive atmospheric corrosion. Salt spray test is an accelerated corrosion resistance evaluation method for artificial atmosphere. The corrosion resistance of the products was tested after the surface treatment of various materials, including coating, electroplating, inorganic and organic coating, anodizing anti-rust oil and so on. www.climatechambers.com...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Embedded Inductors with Laser Machined Gap

Oct 30, 2019 | Jim Quilici

This work presents the fabrication of embedded inductors and the experimental laser machining of gaps in the underlying ferrite structure. (...) Energy efficiency is a major driver in the evolution of electronics and electronics packaging. To manage power consumption, portable appliances (smartphones, tablets, e-readers etc.) often use multiple supply voltages and DC/DC converters. Most are based on switch mode power conversion (SMPC). In a power converter, inductors and transformers are used to temporarily store energy during switching cycles. They also have the function of filtering noise. The power magnetics are often the largest and most expensive devices in the circuit. Integrating the magnetics into either a power converter module or system board can significantly reduce size and cost of the power converter function....

Publisher: Radial Electronics

Radial Electronics

Radial Electronics develops magnetic components and subsystems for data communication, power conversion, and RF applications.

El Dorado Hills, California, USA

Components/Substrates

Why we need to proceed temperature humidity test?

Oct 29, 2019 | climatest symor

For every 10 ℃ increase in temperature, the reaction rate is twice to three times. This means that for every 10 ℃ increase in temperature, the life span of the product will be halved, and when the temperature rises by 20 ℃, the life span of the product will be reduced to 1/4. High temperature will lead to aging, oxidation, evaporation, physical deformation and so on. Low temperature will lead to embrittlement, ice formation, viscosity and solidification degree, loss of mechanical strength, physical shrinkage and so on. When the product is shipped, stored and operated in the environment, it will be endangered. In addition, each product has regulatory and certification requirements, and it is important to evaluate reliability and durability before it is put on the market. In general, according to the IEC60068 test standard, it requires the volume of the laboratory to be at least five times the total volume of the sample under test. Haida constant temperature and humidity box can help you meet this demand. So with the fast developmement of manufacturing industry,test becomes a necessity to see wether the product is able to meet regulated standards in R&D satge,Climatest Symor specializes in handling temperature and humidity,we supply environmental test chamber to China State-owned Research Institutes and laboratories,and obtain excellent reputation from international cllients,our company put much efforts on chamber R&D ,striving to supply best-quality climate simulation equipment and after-sale service. For details,pls visit our official website www.climatechambers.com...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Thermal Profiles - Why Getting Them Right is Important

Oct 24, 2019 | Fred Dimock

Presentation given by Fred Dimock during a seminar at the American Competitiveness Institute, ACI. •Recipe vs. Profile •Material Properties •Why profiles are shaped like they are. •Obtaining profiles •TC Accuracy •Profilers •Test vehicles •Process Window – Eutectic vs. Lead Free •Heat transfer •Oven Control...

Publisher: BTU International

BTU International

Global supplier of advanced thermal processing equipment and processes to the electronics assembly market.

North Billerica, Massachusetts, USA

Manufacturer of Assembly Equipment

Printed Circuit Board Assembly & Choosing a Vendor

Oct 24, 2019 | Nian Zhen

Making your novel electronic item design ready for mass fabrication and <a href="https://www.optimatech.net/">printed circuit board assembly</a> consists of a lot of steps as well as risks. I will provide a few recommendations about how to neglect pricey errors and how to reduce the time to promote your novel item designs. You can hire printed circuit board assembly services for this. As soon as you have accomplished your product as well as printed circuit board design, you wish to get started developing prototypes prior to you commit to big fabrication volume. A lot of design software packages, for instance, PCB layout design software, as well as an industrial design software program, possess simulation potentials incorporated. Carrying out a simulation facilitates curtailing numerous design mistakes prior to the first prototype is developed. In case you are developing an intrusive item, you might desire to think about a modular design wherein all of the chief functionalities are situated in individual modules. All through your testing, you could then swap modules that don’t cater to the design limits. Spinning individual modules would be swifter and more cost-effective in comparison to spinning a complete design. Counting on the design intricacy, you can mull over manually mounting printed circuit board elements to bank dollars. Nonetheless, for medium to big intricacy this procedure likely to be very time taking, typically in case you wish to create numerous prototypes. Hence it makes sense thinking about a contract manufacturer for the assembly. Whilst running miniature quantity fabrication runs, the fabrication setup expenditure will usually control the by and large prototype constructs expenditure. Whilst seeking a subcontractor, it is finest to choose a vendor that focuses on prototype builds to reduce the cost. Prototype printed circuit board fabricators characteristically join the circuit boards of a number of clients which efficiently shares the setup expenditure in the midst of some customers. The disadvantage is that you would characteristically only be able to want among numerous standard printed circuit board material thicknesses as well as sizes. Apart from choosing a supplier with low setup expenditure, choosing a firm that would moreover be capable to manage your whole fabrication runs curtails mistakes because switching fabricators have the chance of errors owing to a specific supplier interpreting fabrication design data in a different way. This manner your design is already translated into the particular machine data that implies little or no setup expenditure for your final fabrication. A few <a href="https://www.optimatech.net/pcb.aspx">PCB</a> manufacturers also provide printed circuit board design services that are awesome plus if you do not possess experience with the design. Moreover, these vendors would be capable to help you in case there are issues with your design folders and be capable to detect issues prior to the fabrication. ...

Publisher: Optima Technology Associates, Inc.

Optima Technology Associates, Inc.

Printed Circuit Board constitutes an essential part of any electronic device and Optimatech.net offers every step of your electronic assembly needs looking forward to work with you.call:717 932 5877

PA, Pennsylvania, USA

Assembly

Investigation of PCB Failure after SMT Manufacturing Process

Oct 21, 2019 | ACI Technologies, Inc.

An ACI Technologies customer inquired regarding printed circuit board(PCB) failures that were becoming increasingly prevalent after the SMT (surface mount technology) manufacturing process. The failures were detected by electrical testing, but were undetermined as to the location and specific devices causing the failures. The failures were suspected to be caused predominately in the BGA (ball grid array) devices located on specific sites on this 16 layer construction. Information that was provided on the nature of the failures (i.e., opens or shorts) included high resistance shorts that were occurring in those specified areas. The surface finish was a eutectic HASL (hot air solder leveling) and the solder paste used was a water soluble Sn/Pb(tin/lead)....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Essentials about Printed Circuit Board Assembly

Oct 18, 2019 | Nian Zhen

It usually does not make any logic to invest in costly fabrication equipment in case you just desire to spin some prototypes and rather outsource your Printed Circuit Board assembly as well as prototype fabrication to a trustworthy vendor. I would provide a few tips as to what to consider when seeking a contract manufacturer. The two most common procedures associated with <a href="https://www.optimatech.net">Printed Circuit Board Assembly</a> are through-hole technology and surface mount technology. Talking about the difference between through-hole technology and surface mount technology. Through-hole elements have metal leads, & these metal leads are supplied through-plated holes inside the circuit board. On the other hand, SMT elements might or might not have leads, nevertheless most significantly, they are developed to be soldered onto the surface of the circuit boards straight on the same side as the element body. A lot of contract manufacturers would provide a quick quote mechanism over their site for the fabrication of circuit boards as well as assembly of prototypes. This would bank your time when comparing various vendors. Ensure that the quote system facilitates you to fill your details, for instance, board material, thickness, copper thickness, milling, etc. in order that you can avail of a precise quote devoid of any surprises afterward. And this is quite necessary. Typically the cost per board would decline as quality upgrades. This is owing to the fairly high setup price of circuit board fabrication over and above component assembly. A few vendors would employ a system where they unite boards from various consumers. This manner the setup price would be circulated among numerous clients. When you fabricate an item, you clearly don’t desire to have to fabricate a big quantity of boards straight away whilst you improve your design. One restriction with small quantity prototypes though is that the option of materials &amp; material thicknesses would be constrained. In case you are employing a particular material then opportunities are there will not be any other clients employing the same material. Additionally, lead time plays a major role in indecisive prices. A longer lead time facilitates the fabricator more liberty in slotting your fabrication. This is basically reflected in cheaper prices that would view in the quote section. Clearly, if you are in a hurry and desire to be moved to the summit of the pile you would require splurging more dollars. Ensure that your contract fabricator would support the file sort for producing which you offer. The most general format for printed circuit board fabrication is the Gerber format nonetheless a few vendors would moreover embrace board files from general printed circuit board software products. A few suppliers also provide in house printed circuit design. Even in case, you create your board yourself, choosing a vendor with design services might prove resourceful in case there is an issue with your files. In this scenario, your vendor could make swift changes that would neglect pricey delays. If you are looking for an <a href="https://www.optimatech.net/pcb-ems.aspx">Electronic Manufacturing Services</a> (EMS Assembly) provider, then the web is the best to search. ...

Publisher: Optima Technology Associates, Inc.

Optima Technology Associates, Inc.

Printed Circuit Board constitutes an essential part of any electronic device and Optimatech.net offers every step of your electronic assembly needs looking forward to work with you.call:717 932 5877

PA, Pennsylvania, USA

Assembly

Autonomous Driving - New systems to optimally apply potting media

Oct 17, 2019 | Scheugenpflug

There has been an increase in sealing and encapsulation applications mainly in the field of autonomous driving. Safety and assistance systems already make driving safer and more comfortable today. With increasing progress even more electronic systems will be added. The smooth functioning of computers, sensors, cameras, etc. - and thus our safety as road users - also depends on optimally applied potting media. These can be applied economically, quickly and with high quality in individual applications and are now mastered. With the changing mobility concepts, however, the prerequisites in manufacturing are changing. The requirements are often not fixed at the outset, but only develop during the course of the project. The aim here is to generate a flexible standard that enables attractive pricing and short delivery times. However, we are prepared for these developments: with our modular system consisting of scalable system modules. From this, individual processes can be taken and combined according to requirements. Our new LiquiPrep systems have recently become part of this modular system. They represent a further development of the proven A310 product family and enable reliable processing and conveying of self-levelling media. In addition to a significantly more intuitive operation, the LiquiPrep systems also offer higher performance thanks to a new, patented membrane pump and an optimized agitator. Image: Optimally applied sealants and casting materials form the basis for high quality and smooth functioning of the components. ...

Publisher: Scheugenpflug Inc.

Scheugenpflug Inc.

Specializes in automated metering & dispensing solutions, supplier of resin metering systems, global expert in production and process automation, vacuum dispensing production systems, and systems for dispensing of abrasive media.

Kennesaw, Georgia, USA

Manufacturer of Assembly Equipment, Adhesives/Dispensing, Assembly, Component Preparation

Effect Of Voids On Thermo-Mechanical Reliability of Solder Joints

Oct 16, 2019 | Morgana Ribas, Ph.D., Siuli Sarkar, Ph.D., Carl Bilgrien, Ph.D., Tom Hunsinger - Alpha Assembly Solutions, MacDermid Performance Solutions

Despite being a continuous subject of discussion, the existence of voids and their effect on solder joint reliability has always been controversial. In this work we revisit previous works on the various types of voids, their origins and their effect on thermo-mechanical properties of solder joints. We focus on macro voids, intermetallics micro voids, and shrinkage voids, which result from solder paste and alloy characteristics. We compare results from the literature to our own experimental data, and use fatigue-crack initiation and propagation theory to support our findings. Through a series of examples, we show that size and location of macro voids are not the primary factor affecting solder joint mechanical and thermal fatigue life. Indeed, we observe that when these voids area conforms to the IPC-A-610 (D or F) or IPC-7095A standards, macro voids do not have any significant effect on thermal cycling or drop shock performance....

Publisher: Alpha Assembly Solutions

Alpha Assembly Solutions

Alpha Assembly Solutions is a world leader in the development, manufacturing, and sales of innovative materials used in the assembly electronics, industrial joining and Photo Voltaic market places.

South Plainfield, New Jersey, USA

Manufacturer of Assembly Material

Advanced Packaging Technology

Oct 16, 2019 | ACI Technologies, Inc.

A major goal of the development of advanced packaging technology is to reduce the size, weight, and power consumption of electronics components using state-of-the-art commercial technologies. One of the novel concepts involves the use of all three spatial dimensions when designing and producing new systems. In the past, electronic structures tended to be two dimensional in nature. Generally speaking, individually packaged integrated circuit (IC) dies were interconnected on printed circuit boards. Techniques such as die and package stacking naturally contribute to a reduction of the spatial footprint of any given electronic system design. ...

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Fill the Void IV: Elimination of Inter-Via Voiding

Oct 10, 2019 | Tony Lentz - FCT Assembly, Greg Smith - BlueRing Stencils

Voids are a plague to our electronics and must be eliminated! Over the last few years we have studied voiding in solder joints and published three technical papers on methods to "Fill the Void." This paper is part four of this series. The focus of this work is to mitigate voids for via in pad circuit board designs.</p><p> Via holes in Quad Flat No-Lead (QFN) thermal pads create voiding issues. Gasses can come out of via holes and rise into the solder joint creating voids. Solder can also flow down into the via holes creating gaps in the solder joint. One method of preventing this is via plugging. Via holes can be plugged, capped, or left open. These via plugging options were compared and contrasted to each other with respect to voiding. Another method of minimizing voiding is through solder paste stencil design. Solder paste can be printed around the via holes with gas escape routes. This prevents gasses from via holes from being trapped in the solder joint. Several stencil designs were tested and voiding performance compared and contrasted.</p><p> In many cases voiding will be reduced only if a combination of mitigation strategies are used. Recommendations for combinations of via hole plugging and stencil design are given. The aim of this paper is to help the reader to "Fill the Void."...

Publisher: FCT ASSEMBLY, INC.

FCT ASSEMBLY, INC.

With numerous facilities in the United States, we are one of the electronics industry's leading manufacturers of lead-free solder products, superior quality stencils, and precision cut parts.

Greeley, Colorado, USA

Manufacturer of Assembly Material, Soldering

Power Interfaces

Oct 07, 2019 | ACI Technologies, Inc.

Power interfaces are required when external power sources like solar panels, fuel cells, or batteries are used to generate power for electrical devices. There are two major power interfaces commonly used, direct current to direct current (DC/DC) converters and direct current to alternating current (DC/AC) inverters. While both interfaces are designed to convert from variable DC inputs, they output to different power standards and power levels that are used in different applications....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Effects of Temperature Uniformity on Package Warpage

Oct 03, 2019 | Neil Hubble, Charly Olson

Knowing how package warpage changes over temperature is a critical variable in order to assemble reliable surface mount attached technology. Component and component or component and board surfaces must stay relatively flat with one another or surface mount defects, such as head-in-pillow, open joints, bridged joints, stretched joints, etc. may occur. Initial package flatness can be affected by numerous aspects of the component manufacturing and design. However, change in shape over temperature is primarily driven by CTE mismatch between the different materials in the package. Thus material CTE is a critical factor in package design. When analyzing or modeling package warpage, one may assume that the package receives heat evenly on all sides, when in production this may not be the case. Thus, in order to understand how temperature uniformity can affect the warpage of a package, a case study of package warpage versus different heating spreads is performed.<p><p>Packages used in the case study have larger form factors, so that the effect of non-uniformity can be more readily quantified within each package. Small and thin packages are less prone to issues with package temperature variation, due to the ability for the heat to conduct through the package material and make up for uneven sources of heat. Multiple packages and multiple package form factors are measured for warpage via a shadow moiré technique while being heated and cooled through reflow profiles matching real world production conditions. Heating of the package is adjusted to compare an evenly heated package to one that is heated unevenly and has poor temperature uniformity between package surfaces. The warpage is measured dynamically as the package is heated and cooled. Conclusions are drawn as to how the role of uneven temperature spread affects the package warpage....

Publisher: Akrometrix

Akrometrix

Leading provider of full-field metrology solutions for substrates and packages in the OEM/CEM/SATS/PCB segments of the microelectronics industry.

Atlanta, Georgia, USA

OEM, Service Provider

Cleanliness/Corrosion Mitigation

Sep 27, 2019 | ACI Technologies, Inc.

One of the most critical factors in preventing corrosion from occurring in electronics is maintaining the state of cleanliness. This is not an easy feat to achieve. Corrosion is defined as the deterioration of a material or its properties due to a reaction of that material with its chemical environment. [1] So, to prevent corrosion from occurring, either the material or the chemical environment must be adjusted. Adjusting the material usually means application of a protective coating or replacing a more reactive material with a less reactive material. Adjusting the chemical environment usually means removing ionic species through cleaning, and removing moisture, usually with a conformal coating or hermetic package. Ionic species and moisture are problematic because they form an electrolyte which is able to conduct ions and electricity. Any metal that comes into contact with the electrolyte can begin to corrode....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

What is the main function of hot air dry oven?

Sep 25, 2019 | climatest symor

What is the main function of hot air dry oven? Drying ovens are devices used to remove moisture and other solvents from the items placed inside them through a forced convection process, collecting it elsewhere so that the object becomes dehydrated. A drying oven causes objects to dry out through evaporation. Drying ovens use convection heating,also called air forced, in which the object is heated through air currents. Water from the object escapes into the air, raising the humidity level and causing the semi-solid membranes inside the oven to absorb the water. The end result is that the oven removes water from the object being dried, leaving it dehydrated. Drying ovens contain a system for forcing convection currents to develop, usually either a fan or turbine, which aids in the heating and drying process by ensuring that the hot air circulates,many ovens are equipped with an adjustable ventilation system that allows the user to ensure that the system has an adequate air supply. For details,pls visit our website: https://climatechambers.com/articles&latestnews/what-is-the-main-function-of-hot-air-dry-oven.html...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Thermal Capabilities of Solder Masks and Other Coating Materials - How High Can We Go?

Sep 24, 2019 | Sven Kramer

This paper focuses on three different coating material groups which were formulated to operate under high thermal stress and are applied at printed circuit board manufacturing level. While used for principally different applications, these coatings have in common that they can be key to a successful thermal management concept especially in e-mobility and lighting applications. The coatings consist of:</p><p> Specialty (green transparent) liquid photoimageable solder masks (LPiSM) compatible with long-term thermal storage/stress in excess of 150°C. Combined with the appropriate high-temperature base material, and along with a suitable copper pre-treatment, these solder resists are capable of fulfilling higher thermal demands. In this context, long-term storage tests as well as temperature cycling tests were conducted. Moreover, the effect of various Cu pre-treatment methods on the adhesion of the solder masks was examined following 150, 175 and 200°C ageing processes. For this purpose, test panels were conditioned for 2000 hours at the respective temperatures and were submitted to a cross-cut test every 500 h. Within this test set-up, it was found that a multi-level chemical pre-treatment gives significantly better adhesion results, in particular at 175°C and 200°C, compared with a pre-treatment by brush or pumice brush. Also, breakdown voltage as well as tracking resistance were investigated. For an application in LED technology, the light reflectivity and white colour stability of the printed circuit board are of major importance, especially when high-power LEDs are used which can generate larger amounts of heat. For this reason, a very high coverage power and an intense white colour with high reflectivity values are essential for white solder masks. These "ultra-white" and largely non-yellowing LPiSM need to be able to withstand specific thermal loads, especially in combination with high-power LED lighting applications.</p><p> The topic of thermal performance of coatings for electronics will also be discussed in view of printed heatsink paste (HSP) and thermal interface paste (TIP) coatings which are used for a growing number of applications. They are processed at the printed circuit board manufacturing level for thermal-coupling and heat-spreading purposes in various thermal management-sensitive fields, especially in the automotive and LED lighting industries. Besides giving an overview of the principle functionality, it will be discussed what makes these ceramic-filled epoxy- or silicone-based materials special compared to using "thermal greases" and "thermal pads" for heat dissipation purposes....

Publisher: Lackwerke Peters GmbH + Co KG

Lackwerke Peters GmbH + Co KG

Lackwerke Peters has progressively evolved into one of, if not the market leader for coating materials for assembled pcbs / flat packs in Europe, which includes renowned companies from aviation and aerospace technolog

Kempen, Germany

Manufacturer of Assembly Material

TDK Navitasys India X Ray case

Sep 23, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

TDK Navitasys India X Ray case Navitasys India private Limited is belong to TDK Electronics AG (previously EPCOS AG) develops, manufactures and markets electronic components and systems under the product brands of TDK and EPCOS, focusing on fast-growing leading-edge technology markets, which include automotive electronics, industrial electronics and consumer electronics as well as information and communications technology.  China branch and India branch already purchased ZM X7800 X ray inspection machine in this year, At September 2019, Navitasys India private Limited factory get ready to Manufacture the Motorola electronics Products series, Seamark ZM sent engineer to India for install and train x ray inspection machine, For x ray series machine, Seamark ZM are working with the world-leading suppliers, including VJ technology(USA), Korea Rayence, Hamamatsu Photon(Japan), Teledyne Dalsa (USA) and iRay(China), Omron(Japan), Googoltech(China) etc. TDK Navitasys India X Ray case image It is great to know more and more companies are pay attention to products’ quality, Like TDK Electronics AG, There are many secrets to their success, and quality is one of them. Family of Industrial X-ray inspection machine & BGA rework station Last Article: Rashmi Rare Earth X Ray Machine Training Next Article:x ray inspect PCB and SMT patch module TSI Mexico use Seamark x ray machine Persang Alloy Industries X ray 6600 for PCB Maybe you still are interested in: Solder paste printing defects and solutions in SMT chip processing process Advantages of X-ray SMD counter ...

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

X ray parts counter Shipment

Sep 23, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

X ray parts counter Shipment National Day (October 1) is coming, Seamark ZM needs to transport the machines out before the holiday, it is a busy week! 2019.9.23, we ship one set Online x ray smd parts counter to Taiwan, China for PCBA factory. Taiwan market have purchased a lot of x ray series from Seamark ZM. One set Offline x ray smd parts counter ship to Thailand for PCBA factory. Great tool for save money & Time!-X ray parts counter Shipment This equipment is mainly used for the rapid measurement of the reel type materials used in the SMT industry. It is based on the high industrial 4.0 standard, intelligent modular design, and can be used for 7-17 inch Tape Reel/JEDEC Tray/IC tide sensitive package. Piece, equipped with artificial intelligence deep learning software, cloud update system. Material types include all Resistance, capacitance, inductance, crystal, LED, diode, triode, multi-pin IC, etc...

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

Non-Destructive Test Methods

Sep 23, 2019 | ACI Technologies, Inc.

Failure analysis (FA), by its very nature, is needed only when things goawry. Before any testing is performed on the sample, a decision mustbe made as to whether or not the sample is allowed to be destroyedin the process of testing. Non-destructive testing can allow for re-use of the assembly since the functionality is not altered, but there still remains the possibility that inadvertent damage can occur through the course of the analysis. If non-destructive testing is preferred, then the following types of analysis can be performed. The testing can be divided into four categories: visual, X-ray (X-ray imaging and X-ray fluorescence), cleanliness (resistivity of solvent extract, ion chromatography, and Fourier transform infrared spectroscopy), and mechanical (non-destructive wire bond pull)....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Seamark ZM EeIE 2019 SMT exhibition

Sep 19, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

Seamark ZM EeIE 2019 Join US EeIE 2019 The EeIE 2019 exhibition which will be held at 4th–6th November, 2019, in Shenzhen. Seamark ZM will showcase the machines including semi-automated & fully-automated IR BGA rework system, 2D & 2.5D off-line x-ray inspection machine, and Online& offline x-ray parts counter. Seamark ZM EeIE 2019 Exhibition BGA rework system: Seamark zm started to develop and sell BGA rework station since 2004, Now we are No.1 In China, Seamark zm’ Aim:Quality is the first, customer experience first. Besides, Seamark ZM own the first one Full Automatic BGA rework station around the world, Full control by PC, that is why Seamark ZM can be Top One. X-ray parts counter: For Industry 4.0, the trend of SMT production line, and realize intelligent, less humanized and more efficient. Seamark ZM has always focused on the product itself. The x ray SMT counter has been developed to the 3rd generation. It has no deformation, no area difference, can be recognized by the naked eye, the point precision is 99.99%, and the material model coverage is wider. The speed of Counting reaches 5-12 seconds/reel. X-ray inspection machine: While technological accomplishments in the electronics industry are constantly growing, the components in the electronics industry are constantly shrinking. These components may be small in size, but when defects occur, the problems are big. Digital X-ray and Computed Tomography offer a window into this tiny world, delivering insight into root causes of product failure that can lead then to great product success. And Quality is the core, this is the meaning of the X ray inspection machine, quality is the core of the company, the product quality is good, the end customer is the ultimate beneficiary, X ray machine sale hot in these year, Nice to know more and more companies pay Attention to Quality. If you’d like to schedule a meeting with us at the EeIE 2019, 4th–6th November, 2019, Shenzhen International Convention and Exhibition Center ( Baoan ), Booth 3Q181. please contact our Seamark ZM Sales team– Email  info@seamarkxray.com, Whatstapp/Wechat/Tel: +8618779975930. Look forward to seeing you at EeIE 2019....

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

How Detrimental Production Concerns Related to Solder Mask Residues Can Be Countered by Simple Operational Adaptations

Sep 19, 2019 | Rick Nichols, Sandra Heinemann, Gustavo Ramos, Dr. Lars Nothdurft, Hubertus Mertens

The symbiotic relationship between solder masks and selective finishes is not new. The soldermask application is one of the key considerations to ensure a successful application of a selective finish. The selective finish is the final chemical step of the PCB manufacturing process, this is when the panels are at their most valuable and are unfortunately not re-workable. Imperfections are not tolerated, even if they are wholly cosmetic. Quality issues often manifest themselves in the form of a 'ping pong' conversation between the fabricators, the soldermask suppliers and the selective finish suppliers. Without tangible evidence these discussions are difficult to resolve and the selective finish process is usually regarded as responsible.</p> <p>This paper will focus on the chemical characteristics and use them to predict or identify potential issues before they occur rather than specifically name 'critical' soldermasks. It is also the intention of this paper to address the potential of a soldermask to react to common yield hiking practices like UV bumping and oven curing. It is hoped that this awareness will help fabricators to ensure maximum yields by asking the right questions. 'Critical’ soldermasks impact all selective finishes. In this paper, practical experience using immersion tin will be used to highlight the relationship between 'critical' soldermasks and some of the issues seen in the field. The paper will include a novel approach to identify re-deposited volatiles after the reflow....

Publisher: Atotech

Atotech

One of the world's leading suppliers of integrated production systems, chemistry, equipment, know-how and service for electroplating, semiconductor and printed circuit board manufacturing.

Berlin, Germany

Manufacturer of Assembly Material, Manufacturer of Components, Components/Substrates

Advantages of PET carrier tape

Sep 17, 2019 | James tong

1.PET carrier tape. It has outstanding mechanical function, and the impact strength is 3~5 times that of other films, and the folding resistance is good....

Publisher: Sewate Technology Co.,Ltd

Sewate Technology Co.,Ltd

Sewate professionally produce ESD protective packaging systems such as ic shipping tubes, plastic anti static ic tubes,, carrier tape, cover tape and reel for electronic component

Shenzhen, China

Antistatic, Component Packaging, Tape and Reel Services

Virtual Manufacturing

Sep 16, 2019 | ACI Technologies, Inc.

“What is Virtual Manufacturing?” The simplest answer is a manufacturing simulation using a computer. The more complete answer is that virtual manufacturing is the process of designing a model of a real system and conducting experiments with this model for the purpose of understanding the behavior of the system. In today’s complex manufacturing environment, processes must be completely understood before implementation in order to “get it right the first time.” To achieve this goal, the use of a virtual environment is essential for simulating individual manufacturing processes and the total manufacturing system. By driving compatibility between the product design and the assembly plant process, these virtual tools enable the early optimization of cost, quality, and time to help achieve integrated products, process and resource design, and affordability....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

X-Ray X-2000 Online SMD X-Ray Scanner点料机核心技术

Sep 15, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

Online SMD X-Ray Scanner X-Ray X-2000 Online SMD X-Ray Scanner 点料机简介 本设备主要用于SMT行业生产用的卷盘类物料进行快速点数,以高度工业4.0为标准,智能模块化设计,可点7-17英寸Tape Reel/JEDEC Tray/IC潮敏包等全品项料件,配备人工智能深度学习软件,云端更新系统。 物料类型包括所有阻容类物料和IC类物料。利用X射线成像技术,对生产物料进行检测并获取图像信息,在通过SEAMARK公司自主研发的图像算法进行快速计数,即可获取物料的实际数量,同时可将物料数目按照类别分类统计,并将设备数据信息与客户MES系统对接。 X-Ray X-2000 Online SMD X-Ray Scanner点料机核心技术参数 整机设备尺寸: 3200mm*1300mm*2100mm 设备总重: 2.5t     电源电压: AC220V 50/60Hz    总功率: Max 2Kw 上料方式: 转盘式双工位自动感应上料(每个工位可缓存7-15寸盘50盘) 下料方式:转盘式双工位自动感应下料(每个工位可缓存7-15寸盘50盘) 异常物料存放区:前置试异常物料存放区(自动存放) X射线管 射线管品牌: 美国VJ        X光管电压: 80Kv X光管电流: 700uA                          焦点尺寸: 30um 探测器 品牌: 德国Iray                    成像面积: 427*427mm 像素尺寸:139um                              像素矩阵: 3072*3072pixels 灰阶: 16 bits                                      检测项目及尺寸 料盘最大尺寸: 17 inch 料盘最小尺寸: 7inch/包含更小的散料 料盘最大厚度: 85mm                      料盘最小厚度: 3mm 兼容最小期间类型 :01005               料盘覆盖率:持续更新数据库,可覆盖市面上99%的物料 其他规格 计数时间 约8~10秒/盘. 条码扫描 可配置一维、二维条码扫码枪, 标签打印 可实时打印物料编码、点数结果 计数精度 01005准确率>99.99%,0201准确率=100% 贴标方式:  CCD视觉识别料盘上旧条码坐标,将新的条码贴到料盘上并覆盖旧条码 检测元件 电阻、电容、电感、晶振、LED、二极管、三极管、多脚IC等 软件 支持任意格式SPC统计、图片和结果自动保存. 对接系统 ERP,MES等 辐射泄漏量 <1 μSv/Hour X-Ray X-2000 Online SMD X-Ray Scanner主要特点 优点1 基于全自动点料算法的深度学习 优点2 无需花费3-5天时间进行对厂内的料盘录入数据,用户可直接使用 优点3 累积点料数据库共享到所有机器 优点4 数据更多,点料更可靠,更精准 优点5 可点7~17inch寸料盘 优点6 支持随机位置,优秀的用户体验 优点7 算法/数据库永久更新和支持 优点8 基于深度学习的极高可靠性和可重复性 为什么我们做的更好 ? 其他公司 深圳卓茂 需要用户做大量的工作,基于用户的能力来 使用云/人工智能来把图像资料集中起来,基于专家和深度学习来点料 条形码作为算法和元器件的链接而存 使用人工智能来识别元器件,并自动应用于算法中 无法把点料数据集中起来,算法无法共享  使用人工智能来识别元器件,并自动应用于算法中 无法把点料数据集中起来,算法无法共享  使用集中的数据库,共享所有点料算法/信息给每一个用户 X-RAY点料机实测结果 序列     类别       料盘大小    数量         准确率         循环时间 (seconds)) 1     01005          7″     20000PCS     99.98%        6s~18s 2       0201          7″       10000PCS      100%          10s~13s 3       0402           7″      10000PCS      100%          10s~13s 4      0603          7″       5000PCS      100%          10s~13s 5       0402          15″      50000PCS      100%          10s~13s 6       10×10        15″       500PCS       100%          10s~13s 备注:根据物料数量多与少的情况,时间效率会有轻微变化,此点数效率根据后续云端数据库或定期软件数据库的更新,还会有所提高。 X-RAY点料机云存储介绍 设备属于智能云端控制,每一台设备每天所点的料盘图片会通过联网自动将图片存储到云端数据库,工程师们会在后台将这些图片优化,再将优化好的各种料盘的数据每个月更新到数据库,以便提高料盘点数准确率。时间越久,料盘准确率就会更高,直至100%。(如果客户不愿意联网更新数据库,我们可以提供U盘离线更新数据库) 客户购买我们机器后,我们日积月累已经收集和整理了非常大的数据库,存储在云端或软件里。当客户所使用的元器件存在于数据库内时,便可以直接进行点料,无需再建立此料盘的数据,效率更高,准确率也更高。 为什么要使用X-RAY点料机 ? 测试参数    傳統點料機                X -RAY 点料机X-2000 每班人數                 6人                          1人 每盤料時間            80秒                        12秒 每班總數              1800盤                     1920盤 1、无须拆开包装袋,保持料卷完整性,不会影响料件防潮性。 2、大幅降低清点时间,免去多余人力,可转而协助其他人员收线或换线,缩短换线停线时间。 3、智慧点料机采用数位化资料,可列印条码贴纸或是直接上传资料库。而传统方式的点料仪器,必须每位操作人员一台,占用空间大,清点结果还是人工填写,有可能写错或漏写。 4、智慧点料机可大幅度改善缺料、丢料、漏料、少料情况,数位化管理物料仓储,降低物料库存成本,提高物料盘点准确性。 5、迎接工业4.0,SMT生产线的趋势,智慧化、少人化、效率化。 支持一下料盘点料:高级图像打散算法-处理相连(高)的芯片, 处理相连(高)的芯片, 满料盘自动点料(防潮袋 ),   (自动)可点散落芯片, 精准点算重叠相连的芯片, (自动)全球首创空料盘检测技术。 Family of Industrial X-ray inspection machine & BGA rework station Last Article: Method for detecting electronic components quickly Next Article:x ray inspect PCB and SMT patch module TSI Mexico use Seamark x ray machine Persang Alloy Industries X ray 6600 for PCB Maybe you still are interested in: Solder paste printing defects and solutions in SMT chip processing process Advantages of X-ray SMD counter ...

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

Online SMD Component Counters Scanner

Sep 15, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

Online SMD Component Counters Scanner X-Ray X-2000 Online SMD Component Counters Scanner Introduction This equipment is mainly used for the rapid measurement of the reel type materials used in the SMT industry. It is based on the high industrial 4.0 standard, intelligent modular design, and can be used for 7-17 inch Tape Reel/JEDEC Tray/IC tide sensitive package. Piece, equipped with artificial intelligence deep learning software, cloud update system. Material types include all Resistance, capacitance, inductance, crystal, LED, diode, triode, multi-pin IC, etc. X-ray imaging technology is used to detect the production materials and obtain image information. The image is automatically counted by SEAMARK’s self-developed image algorithm to obtain the actual quantity of materials, and the number of materials can be classified according to categories and equipment. The data information is interfaced with the customer MES system. Online SMD Component Counters Scanner Technical Parameters Dimension: 3200mm*1300mm*2100mm Weight: 2.5t    Voltage: AC220V 50/60Hz    Power: Max 2Kw Loading method: Rotary type double station automatic induction loading (each station can cache 50 disks of 7-15 inch disk) Unloading method:Rotary type double station automatic induction unloading (each station can cache 50 disks of 7-15 inch disk) Abnormal material storage area: pre-test abnormal material storage area (automatic storage) X ray tube brand: United States VJ        X ray tube voltage: 80Kv X ray tube Max tube current: 700uA     Focal spot size: 30um FPD Brand: Germany Iray                       Detector Imaging area: 427*427mm Pixel size:139um                                         Pixel matrix: 3072*3072pixels Gray scale: 16 bits                                      Reel Inspection size range: 7- 17 inch (Contains smaller bulk material ) Reel Inspection thickness: 3-85mm      Min parts size :01005 Tray Coverage: Continuously update the database to cover 99% of the material on the market Counting time: About 8~10s/reel. Barcode scanning Configurable 1D, 2D barcode scanning code gun, label printing Real-time printing of material code, point results Counting accuracy 01005 accuracy rate >99.99%, 0201 accuracy rate =100% Label printing: CCD visually identifies the old bar code coordinates on the tray, and pastes the new bar code onto the tray and overwrites the old bar code Parts support: Resistance, capacitance, inductance, crystal, LED, diode, triode, multi-pin IC, etc. Software: Support for automatic saving of SPC statistics, images and results in any format System docking: ERP, MES, etc. Radiation<1 μSv/Hour X-Ray X-2000 Online SMD Component Counters Scanner Main feature Advantage 1: Deep learning based on fully automatic counting algorithm Advantage 2: It does not take 3-5 days to enter data into the in-plant tray, which can be used directly. Advantage 3: Cumulative counting database sharing to all machines Advantage 4: More data, more reliable and more accurate Advantage 5: Can support 7~17inch tray Advantage 6: Support random location, excellent user experience Advantage 7: Algorithm/database permanent update and support Advantage 8: Extremely high reliability and repeatability based on deep learning Why are Seamark ZM doing better?                       Other Brands  Seamark zm Do a lot of work, based on the user’s ability to count  Use cloud/artificial intelligence to get together image data, based on experts & deep learning to count Barcodes exist as links to algorithms and components Use artificial intelligence to identify components and automatically apply them to algorithms Unable to collect data, algorithms can’t share Share all counting algorithms/information to each user using a centralized database X-RAY Online SMD Component Counters Scanner results of testing No.    Parts    Reel size        Qty       Accuracy      Speed (s) 1      01005    7″          20000PCS     99.98%       16s~18s 2      0201      7″           10000PCS     100%         10s~13s 3     0402        7″           10000PCS     100%         10s~13s 4     0603      7″            5000PCS      100%        10s~13s 5    0402        15″           50000PCS     100%        10s~13s 6    10×10       15″           500PCS        100%       10s~13s Remarks: According to the quantity of materials, the time efficiency will change slightly. The efficiency of this X-ray smd counter will be improved according to the update of the subsequent cloud database or regular software database. X-RAY Cloud storage introduction The device is controlled by the intelligent cloud. Each device’s tray image will be automatically stored in the cloud database through the network. Engineers will optimize these images in the background, and then optimize the data of each tray. Updated to the database in a month to increase the accuracy of the tray points. The longer the time, the higher the accuracy of the tray, up to 100%. (If the customer is not willing to update the database online, we can provide a USB flash drive offline update database) he device has collected and organized a very large database, stored in the cloud or in software. When the components used by the customer exist in the database, the material can be directly processed, and the data of the tray is not required to be built, and the efficiency is higher and the accuracy is higher. Why use an Auto Online Counters, not Traditional Manual SMD counter? Traditional Manual SMD counter       Auto Online Counters Worker quantity        6worker                           1 worker Reel counting time    80s                           12s Reel counting quantity       1800 reel                     1920 reel 1、Automatic x-ray SMD counter, which eliminates the need to unpack the bag and maintain the integrity of the roll without affecting the moisture resistance of the material. 2、Automatic x-ray SMD counter greatly reduces the inventory time, eliminating the need for extra manpower, and can assist other people to take over or change lines, shortening the time for line change. 3、Automatic x-ray SMD counter uses digital data to print barcode stickers or upload directly to the database. The traditional Manual SMD counter must have one operator per user, occupying a large space, and the result of the inventory is manually filled in, and it is possible to write a wrong or missed write. 4、Automatic x-ray SMD counter can greatly improve the shortage of material, material loss, material leakage, and material shortage, digitally manage material storage, reduce material inventory cost, and improve material inventory accuracy. 5、For Industry 4.0, the trend of SMT production line, and realize intelligent, less humanized and more efficient. Support the following tray materials: advanced image scattering algorithm – processing connected (high) chips, processing connected (high) chips, automatic feeding of full trays (moisture-proof bags), (automatic) point-distributing chips, accurate counting Overlapping chips, (automatic) the world’s first empty tray detection technology. Family of Industrial X-ray inspection machine & BGA rework station Last Article: Method for detecting electronic components quickly Next Article:x ray inspect PCB and SMT patch module TSI Mexico use Seamark x ray machine Persang Alloy Industries X ray 6600 for PCB Maybe you still are interested in: Solder paste printing defects and solutions in SMT chip processing process Advantages of X-ray SMD counter ...

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

Manual parts Counter & Auto parts counter

Sep 15, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

Manual parts Counter & Auto parts counter Manual parts Counter & Auto parts counter Foxconn purchased Auto x ray parts counter for replace 6-7 workers to counting smd reels tray, no need to open the sealed package&take out mositure barrier bag, good choice for high sensitive components counting. By the way, the machine is Integrated to all major ERP/MES systems, it achieves full automation and intelligence in the SMT  industry. Photo 1 shows Manual parts Counter & Auto parts counter Fast return of invest (ROI)-Manual parts Counter & Auto parts counter ROI No# Item  Content Traditional Parts Counter Seamark Auto Parts counter 1 Counting Counting Time/Reel(S) 80 15 2 Input result into system time (S) 12–15 NO 3  Total Time/Reel 95s 15s 4 Total reels/Day/Person 300 1920 5 WorkLoad /Day Reels need to count/Day                       2000 6 Workers need 5-6 1 7 Cost Salary of workers/Month/Person  USD800 USD700 8 Total salary/Year USD57600 USD8400 9 Manpower saved/Year USD49200 10 Result Around 14-18 months can get back the investment Remark:.Worker salary is based on Chinese salary level in 2018. You can get more accurate result on your local salary level. Photo 2 shows Huge workload is easy for Auto x ray parts counter Many thanks for Foxconn’ great support, Foxconn are using Seamark ZM ‘Industrial X-ray Inspection Equipment & BGA Rework Station & X-ray SMD parts counter machine, how about you? Following Foxconn Please, and do better! Family of Online SMD Component Counters Scanner Last Article: Method for detecting electronic components quickly Next Article: Online SMD X-Ray Scanner TSI Mexico use Seamark x ray machine Persang Alloy Industries X ray 6600 for PCB Maybe you still are interested in: Solder paste printing defects and solutions in SMT chip processing process Advantages of X-ray SMD counter ...

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

Rashmi Rare Earth X Ray Machine Training

Sep 15, 2019 | Joy Rong +8618779975930 info@seamarkxray.com

Rashmi Rare Earth X Ray Machine Training Rashmi Rare Earth Limited is an electronic manufacturing services (EMS) company & Electronic Contract Manufacturing of PCBA & mobile Assembling company, based out of Noida, Uttarpardesh. It is start from January 2019. Rashmi Rare Earth Limited specializes in manufacturing mobile phones and electronic mobile accessories such as charger and batteries. It offering world class PCBA and Mobile Cell Phone Assembly. With a proven excellence in providing the quality manufacturing, assembling and PCBA manufacturing, They purchased SPI AOI, and x ray inspection machine for PCB BGA quality inspection, with high end infrastructure facilitates clean room. Rashmi Rare Earth X Ray Machine Training In Septemper 2019, Our Company send Engineer to Rashmi Rare Earth for training the x ray machine X6600 and BGA rework station ZM R6200 ( ZM R6200 have upgrade to ZM R7220A ), With X Ray machine’ help, they can find out the Root cause and improve it, save manpower and repair cost. Rashmi Rare Earth X Ray Machine Training Photo If more company like Rashmi Rare Earth pay more attention to Quality, India electronic manufacturing services (EMS ) market will get more and more better. Family of Online SMD Component Counters Scanner Last Article: Method for detecting electronic components quickly Next Article: Online SMD X-Ray Scanner TSI Mexico use Seamark x ray machine Persang Alloy Industries X ray 6600 for PCB Maybe you still are interested in: Solder paste printing defects and solutions in SMT chip processing process Advantages of X-ray SMD counter ...

Publisher: Seamark zm Tech Group

Seamark zm Tech Group

Seamark ZM PCB BGA X-ray Inspection system Equipment -14 years experience in SMT field, Our experience will provide good solutions. X-Ray Inspection, BGA reworks tation,Full auto X ray SMD component machine

Shenzhen, China, China

Inspection

Investigation of Cutting Quality and Mitigation Methods for Laser Depaneling of Printed Circuit Boards

Sep 11, 2019 | Ahne Oosterhof, Eastwood Consulting, Javier Gonzalez, LPKF Laser & Electronics AG

There are numerous techniques to singulate printed circuit boards after assembly including break-out, routing, wheel cutting and now laser cutting. Lasers have several desirable advantages such as very narrow kerf widths as well as virtually no dust, no mechanical stress, visual pattern recognition and fast set-up changes. The very narrow kerf width resulting from laser ablation and the very tight tolerance of the cutting path placement allows for more usable space on the panel. However, the energy used in the laser cutting process can also create unwanted products on the cut walls as a result of the direct laser ablation. The question raised often is: What are these products, and how far can the creation of such products be mitigated through variation of the laser cutting process, laser parameters and material handling? This paper discusses the type and quantity of the products found on sidewalls of laser depaneled circuit boards and it quantifies the results through measurements of breakdown voltage, as well as electrical impedance. Further this paper discusses mitigation strategies to prevent or limit the amount of change in surface quality as a result of the laser cutting process. Depending on the final application of the circuit board it may prompt a need for proper specification of the expected results in terms of cut surface quality. This in turn will impact the placement of runs and components during layout. It will assist designers and engineers in defining these parameters sufficiently in order to have a predictable quality of the circuit boards after depaneling....

Publisher: LPKF Laser & Electronics

LPKF Laser & Electronics

With its broad product range LPKF is one of the world market leaders in the "in-house rapid PCB prototyping" and "StencilLaser" services

Tualatin, Oregon, USA

Manufacturer of Assembly Equipment, Drilling/Routing

Full Material Declarations: Removing Barriers to Environmental Data Reporting

Sep 04, 2019 | Roger L. Franz

Since the European Directives, RoHS (Restriction of Hazardous Substances) and REACH (Registration, Evaluation, Authorization and Restriction of Chemicals), entered into force in 2006-7, the number of regulated substances continues to grow. REACH adds new substances roughly twice a year, and more substances will be added to RoHS in 2019. While these open-ended regulations represent an ongoing burden for supply chain reporting, some ability to remain ahead of new substance restrictions can be achieved through full material declarations (FMD) specifically the IPC-1752A Class D Standard (the "Standard"), which was developed by the IPC - Association Connecting Electronic Industries. What is important to the supply chain is access to user-friendly, easily accessible or free, fully supported tools that allow suppliers to create and modify XML (Extensible Markup Language) files as specified in the Standard. Some tools will provide enhancements that validate required data entry and provide real-time interactive messages to facilitate the resolution of errors. In addition, validation and auto-population of substance CAS (Chemical Abstract Service) numbers, and Class D weight rollup validation ensure greater success in the acceptance of the declarations in customer systems that automate data gathering and reporting. A good tool should support importing existing IPC-1752A files for editing; this capability reduces the effort to update older declarations and greatly benefits suppliers of a family of products with similar composition. One of the problems with FMDs is the use of "wildcard" non-CAS numbers based on a declarable substance list (DSL). While the substances in different company's lists tend to have some overlap, no two DSL’s are the same. We provide an understanding of the commonality and differences between representative DSLs, and the ability to configure how much of a non-DSL substance percent is allowed. Case studies are discussed to show how supplier compliance data, can be automatically loaded into the customer's enterprise compliance system. Finally, we briefly discuss future enhancements and other developments like Once an Article, Always an Article (O5A) that will continue to require IPC standards and supporting tools to evolve....

Publisher: TE Connectivity

TE Connectivity

A technology leader in the world's fastest growing markets, helping connect power, data and signal in everything from automotive and aerospace to broadband communications, consumer, energy and industrial applications.

Schaffhausen, Switzerland

Manufacturer of Components, IPC Standards Certification Center, Training Provider

Microscopy in Failure Analysis

Sep 03, 2019 | ACI Technologies, Inc.

Both optical and scanning electron microscopy (SEM) are powerful tools for failure analysis in electronics and are used for low and high magnification examination. This article will provide detailed, step by step information for examining solder joints....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

What is the difference between the carrier tape and the cover tape?

Sep 03, 2019 | James tong

The cover tape and the carrier tape are two different products, and many people cannot distinguish the difference between the cover tape and the carrier tape....

Publisher: Sewate Technology Co.,Ltd

Sewate Technology Co.,Ltd

Sewate professionally produce ESD protective packaging systems such as ic shipping tubes, plastic anti static ic tubes,, carrier tape, cover tape and reel for electronic component

Shenzhen, China

Antistatic, Component Packaging, Tape and Reel Services

Graphene electronic fibres with touch-sensing and light emitting functionalities for smart textiles

Aug 29, 2019 | Elias Torres Alonso, Daniela P. Rodrigues, Mukond Khetani, Dong-Wook Shin, Adolfo De Sanctis, Hugo Joulie, Isabel de Schrijver, Anna Baldycheva, Helena Alves, Ana I. S. Neves, Saverio Russo, Monica F. Craciun

The true integration of electronics into textiles requires the fabrication of devices directly on the fibre itself using high-performance materials that allow seamless incorporation into fabrics. Woven electronics and opto-electronics, attained by intertwined fibres with complementary functions are the emerging and most ambitious technological and scientific frontier. Here we demonstrate graphene-enabled functional devices directly fabricated on textile fibres and attained by weaving graphene electronic fibres in a fabric. Capacitive touch-sensors and light-emitting devices were produced using a roll-to-roll-compatible patterning technique, opening new avenues for woven textile electronics. Finally, the demonstration of fabric-enabled pixels for displays and position sensitive functions is a gateway for novel electronic skin, wearable electronic and smart textile applications....

Publisher: University of Exeter, College of Engineering, Mathematics and Physical Sciences

University of Exeter, College of Engineering, Mathematics and Physical Sciences

The College of Engineering, Mathematics and Physical Sciences comprises seven unique subject areas: Computer Science, Engineering, Geology, Mathematics, Mining and Minerals Engineering, Physics and Astronomy and Renewable Energy.

Exeter, United Kingdom

School

What are the factors that affect the appearance of IC shipping tubes?

Aug 24, 2019 | James tong

Many customers looking for IC shipping tubes value the appearance of the packing tube. They will feel that if the appearance of the IC tube does not look good, the quality will not be very good, so the first impression of the appearance of the Antistatic ic tube is very important. So what are the factors that affect the appearance of IC tubes?...

Publisher: Sewate Technology Co.,Ltd

Sewate Technology Co.,Ltd

Sewate professionally produce ESD protective packaging systems such as ic shipping tubes, plastic anti static ic tubes,, carrier tape, cover tape and reel for electronic component

Shenzhen, China

Antistatic, Component Packaging, Tape and Reel Services

What is usage of Electronic dry cabinet?

Aug 19, 2019 | climatest symor

Electronic dry cabinet for MSD storage Humidity is one of the key reasons for rejected products, many manufacturers are taking measures to control the humidity to increase production efficiency and save cost. In semiconductor and electronic industry, the key section of rejected products mostly happen during SMT heating process, Climatest Symor® auto dry cabinet is a superior solution to avoid the cracking. Warranty: two years with lifetime technical support...

Publisher: Symor Instrument Equipment Co.,Ltd

Symor Instrument Equipment Co.,Ltd

Climatest Symor® is the leading environmental simulation testing equipment manufacturer in China established in 2001, located at Dayang Industrial Park,Hefei,China.

Hefei, China

Manufacturer of Test Equipment

Automated Testing with Boundary Scan

Aug 19, 2019 | ACI Technologies, Inc.

Boundary scan is a method for testing interconnects on printed circuit boards (PCBs) or sub-blocks inside an integrated circuit. It has rapidly become the technology of choice for building reliable high technology electronic products with a high degree of testability. Due to the low-cost and integrated circuit (IC) level access capabilities of boundary scan, its use has expanded beyond traditional board test applications into product design and service....

Publisher: ACI Technologies, Inc.

ACI Technologies, Inc.

ACI, an authorized IPC Training Center operating the National Electronics Manufacturing Center of Excellence providing analytical testing, manufacturing and repair services to the electronics industry.

Philadelphia, Pennsylvania, USA

Design, IPC Standards Certification Center, Consultant, Service Provider, Training Provider

Cracks: The Hidden Defect

Aug 15, 2019 | John Maxwell

Cracks in ceramic chip capacitors can be introduced at any process step during surface mount assembly. Thermal shock has become a "pat" answer for all of these cracks, but about 75 to 80% originate from other sources. These sources include pick and place machine centering jaws, vacuum pick up bit, board depanelization, unwarping boards after soldering, test fixtures, connector insulation, final assembly, as well as defective components. Each source has a unique signature in the type of crack that it develops so that each can be identified as the source of error....

Publisher: AVX Corporation

AVX Corporation

A leading international electronic supplier of components and connectors with worldwide manufacturing facilities, offering the world's broadest selection of passive electronic components.

Fountain Inn, South Carolina, USA

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pcb components vacuum pick up