Flextronics International

Flex Ltd. is an American Singaporean-domiciled multinational electronics contract manufacturer. It is the third-largest global electronics manufacturing services, original design manufacturer company by revenue, behind only ...

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Low Temperature SMT Solder Evaluation

Sep 23, 2020 | Howard "Rusty" Osgood, David Geiger, Robert Pennings, Christian Biederman, Jie Jiang, Jon Bernal

The electronics industry could benefit greatly from using a reliable, manufacturable, reduced temperature, SMT solder material (alloy-composition) which is cost competitive with traditional Sn3Ag0.5Cu (SAC305) solder. The many possible advantages and some disadvantages / challenges are discussed. Until recently, the use of Sn/Bi based materials has been investigated with negative consequences for high strain rate (drop-shock) applications and thus, these alloys have been avoided. Recent advances in alloy "doping" have opened the door to revisit Sn/Bi alloys as a possible alternative to SAC-305 for many applications. We tested the manufacturability and reliability of three low-temperature and one SAC-305 (used as a control) solder paste materials. Two of these materials are doped Sn/Bi/Ag and one is just Sn/Bi/Ag1%. We will discuss the tests and related results. And lastly, we will discuss the prospects, applications and possible implications (based on this evaluation) of these materials together with future actions....

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Error Executing Database Query.

Could not create connection to database server. Attempted reconnect 3 times. Giving up.
 
The error occurred in /var/www/smtnet/adsystem/adsystem_mod.cfm: line 154
Called from /var/www/smtnet/adsystem/adsystem_mod.cfm: line 1
Called from /var/www/smtnet/dsp_global_layout.cfm: line 422
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
152 : 				</CFIF>
153 : 				<CFIF IsDefined('ATTRIBUTES.adid')>
154 : 					AND adid in (#ATTRIBUTES.adid#)
155 : 				</CFIF>
156 : 	</CFQUERY>

SQLSTATE   08001
DATASOURCE   admanager_mysql
SQL    SELECT start_date, adid, end_date, camp_views, image_name, alt_text, views, targeted FROM adsystem WHERE section = 'company_1' AND active = 1 AND adsize = 'Text' AND start_date <= Now()
Resources:

Browser   claudebot
Remote Address   3.239.162.98
Referrer  
Date/Time   29-Mar-24 11:11 AM
Stack Trace
at cfadsystem_mod2ecfm1546098271._factor16(/var/www/smtnet/adsystem/adsystem_mod.cfm:154) at cfadsystem_mod2ecfm1546098271.runPage(/var/www/smtnet/adsystem/adsystem_mod.cfm:1) at cfdsp_global_layout2ecfm1131192918._factor1(/var/www/smtnet/dsp_global_layout.cfm:422) 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