Electronics Forum: 20in and 200c (Page 1 of 1)

Temp Profile of E7501 and P64H2

Electronics Forum | Mon Oct 06 11:13:32 EDT 2003 | marmotzj

Dear All, I'm encountering a problem on mounting Intel E7501 and P64H2 FC-BGA chips. After the SMT process, these two BGAs were defected. Both had power-to-ground short circuits on the die package itself, and also the die resin had cracking tracks

lead free platings and tin lead

Electronics Forum | Tue Aug 31 19:50:44 EDT 2004 | davef

To take our turn at keeping everyone else on the straight and narrow. For more on lead contamination of no-lead solder, look here: http://www.aimsolder.com/techarticles/Lead%20Contamination%20in%20Lead-Free%20Electronics%20Assembly.pdf [We apolog

Differences between solder paste alloy SAC305 and SAC405.

Electronics Forum | Wed Sep 29 19:47:44 EDT 2021 | emeto

"For the lead free soldering of electronic assemblies, the inclusion of silver in the alloy results in better wetting compared to non-silver containing alloys and also allows for a broader process window. Silver also improves joint reliab

Ag-plated LED dipping - high level of Cu and Ag

Electronics Forum | Wed Aug 15 16:04:23 EDT 2001 | davef

First, responding to your question � Several things on copper dissolution in solder are: * A 50um copper wire will dissolve in 60Sn / 40Pb solder at: - 200�C solder in 55 seconds; - 250�C solder in 20 seconds; - 300�C solder in 5 seconds; - 350�C so

Reflow Temperatures and speed for a 7 zone top/bot for conceptro

Electronics Forum | Wed Jun 25 18:17:48 EDT 2003 | Brian W.

Water soluble pastes generally work best with a ramp-to-spike reflow profile. Check your paste manufacturer's recommended profile. There are many factors that impact your profile; board thickness, component density, buried thermal masses, board si


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