Sandia National Laboratories

For more than 60 years, Sandia has delivered essential science and technology to resolve the nation's most challenging security issues.

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National security is our business. We apply science to help detect, repel, defeat, or mitigate threats.

Sandia National Laboratories is operated and managed by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation. Sandia Corporation operates Sandia National Laboratories as a contractor for the U.S. Department of Energy’s National Nuclear Security Administration (NNSA) and supports numerous federal, state, and local government agencies, companies, and organizations.

As a Federally Funded Research and Development Center (FFRDC), Sandia may perform work for industry responding to certain types of federal government solicitations. The solicitation must allow FFRDC participation and meet the requirements of Sandia's management and operating contract with DOE/NNSA.

A strong science, technology, and engineering foundation enables Sandia's mission through a capable research staff working at the forefront of innovation, collaborative research with universities and companies, and discretionary research projects with significant potential impact.

Although most of Sandia's approximately 10,000 employees work at Sandia's headquarters in Albuquerque, New Mexico, or at its second principal laboratory in Livermore, California, others are working at various sites in the U.S. and abroad to deliver innovative and reliable solutions in a changing world.

Sandia National Laboratories Postings

2 technical articles »

Effects Of Storage Environments On The Solderability Of Nickel Palladium- Gold Finish With Pb-Based And Pb- Free Solders

Mar 02, 2022 | Edwin Lopez, Paul Vianco, Samuel Lucero, and Carly George

The solderability of a nickel-palladium-gold (Ni-Pd-Au) finish on a Cu substrate was evaluated for the Pb-free solder, 95.5Sn-3.9Ag-0.6 Cu (wt.%, abbreviated Sn-Ag-Cu) and the eutectic 63Sn-37 Pb (Sn-Pb) alloy. The solder temperature was 245ºC. The flux was a rosin-based mildly activated (RMA) solution. The Ni-Pd-Au finish was tested in the as-fabricated condition as well as after exposure to one of the following accelerated storage (shelf life) regiments: (1) 33.6, 67.2, or 336 hours in the Battelle Class 2 flowing gas environment or (2) 5, 16, or 24 hours of steam aging (88ºC, 90%RH)....

Materials Compatibility and Aging for Flux and Cleaner Combination

May 30, 2016 | Kim M. Archuleta, Rochelle Piatt

New engineered cleaning and defluxing agents promise great improvement in cleaning and reliability for electronic assemblies. As complexity grows and dimensions shrink in high reliability electronics, the need for materials compatibility and effectiveness in cleaning and rinsing is vital....

1 news release »

Lattice from Light Bulbs Could Boost Communication, Vehicle Power

May 13, 2002 | Microscopic Cage that Traps Heat and Light that Would Normally Escape from a System and Transforms It into Usable Energy

Fluid Dispense Pump Integration
Selective Conformal Coating System

Error Occurred While Processing Request The web site you are accessing has experienced an unexpected error.
Please contact the website administrator.


The following information is meant for the website developer for debugging purposes.
Error Occurred While Processing Request

Error Executing Database Query.

Could not create connection to database server. Attempted reconnect 3 times. Giving up.
 
The error occurred in /var/www/smtnet/dsp_global_layout.cfm: line 635
Called from /var/www/smtnet/dsp_global_layout.cfm: line 389
Called from /var/www/smtnet/dsp_global_layout.cfm: line 1
Called from /var/www/smtnet/company/dsp_layout.cfm: line 1
Called from /var/www/smtnet/company/index.cfm: line 260
Called from /var/www/smtnet/company/index.cfm: line 120
Called from /var/www/smtnet/company/index.cfm: line 11
Called from /var/www/smtnet/company/index.cfm: line 1
633 : 	 <cfset last_updated = DateAdd("n", -15, last_updated)>
634 : 	 --->
635 : 	 <cfquery datasource="user_session" name="Qonline_visitors">
636 : 		SELECT count(distinct ip) as cnt
637 : 		FROM user_session

SQLSTATE   08001
DATASOURCE   user_session
SQL    SELECT count(distinct ip) as cnt FROM user_session WHERE user_id=0 AND acceptscookies=1 AND ts_updated >= now()-interval 15 minute
Resources:

Browser   claudebot
Remote Address   3.95.231.212
Referrer  
Date/Time   29-Mar-24 03:14 AM
Stack Trace
at cfdsp_global_layout2ecfm1131192918._factor9(/var/www/smtnet/dsp_global_layout.cfm:635) at cfdsp_global_layout2ecfm1131192918._factor27(/var/www/smtnet/dsp_global_layout.cfm:389) at cfdsp_global_layout2ecfm1131192918.runPage(/var/www/smtnet/dsp_global_layout.cfm:1) at cfdsp_layout2ecfm507669117.runPage(/var/www/smtnet/company/dsp_layout.cfm:1) at cfindex2ecfm100786478._factor4(/var/www/smtnet/company/index.cfm:260) at cfindex2ecfm100786478._factor36(/var/www/smtnet/company/index.cfm:120) at cfindex2ecfm100786478._factor37(/var/www/smtnet/company/index.cfm:11) at cfindex2ecfm100786478.runPage(/var/www/smtnet/company/index.cfm:1)

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at sun.reflect.GeneratedConstructorAccessor917.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:395)
	at com.mysql.jdbc.Util.getInstance(Util.java:370)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:999)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:904)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2369)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2290)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:818)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:31)
	at sun.reflect.GeneratedConstructorAccessor85.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:395)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
	at com.mysql.jdbc.NonRegisteringDriver.$fr$connect(NonRegisteringDriver.java:346)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java)
	at coldfusion.server.j2ee.sql.pool.JDBCPool.createPhysicalConnection(JDBCPool.java:614)
	at coldfusion.server.j2ee.sql.pool.ConnectionRunner$RunnableConnection.run(ConnectionRunner.java:67)
	at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection,  message from server: "Too many connections"
	at sun.reflect.GeneratedConstructorAccessor917.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:395)
	at com.mysql.jdbc.Util.getInstance(Util.java:370)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:999)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1112)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2467)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2308)
	... 13 more