Electronics Forum | Wed Sep 18 13:22:29 EDT 2002 | kevin
as the title says, should gold pads be pre-tinned, and are there any issues with soldering to gold pads?
Electronics Forum | Tue Jun 03 12:10:42 EDT 2003 | Paul Stolar
I am having a problem remembering what temp to pretin components at. This is for SN63. I thought I used 450F, but this company says 500.
Electronics Forum | Thu Sep 02 21:51:54 EDT 2004 | davef
Curious, but thoughts are: * Your pretinning pot is loaded with gold that has been removed from lead over a period of time * Your failed solder connections are caused by something else other that gold intermetallics * Your tinning process is undiscip
Electronics Forum | Sun May 02 06:15:58 EDT 2010 | stephan
I look for specification for degolding - pretinning for SMT and through hole parts (in the military sector) . I found IPC JSTD 001 and some ECSS ...08 but without visual real criterias on the product. Thanks for your inputs .
Electronics Forum | Fri Jul 26 08:25:25 EDT 2013 | emeto
If there is a way to pre-tin the parts, that might help in forming better joint with gold.
Electronics Forum | Wed Sep 23 13:56:02 EDT 2020 | emeto
Try to pre-tin the part. This should give you a lot of answers.
Electronics Forum | Thu Sep 02 18:39:48 EDT 2004 | steveg
We're having a lot of problems with failed solder joints to gold-plated MOSFET leads. Gold plate thickness spec is 60uin, but we've seen as much as 200uin in cross-section, so we're obviously concerned about gold embrittlement issues. Pre-tinning w
Electronics Forum | Thu Sep 07 15:20:58 EDT 2023 | rjroaquin6
Hello All, I recently had a case of excessive tin coming from a solder pot sample. The solder is SN63 but the results of testing had a 64.97% for Sn. The J-STD-001 spec is 61.5% to 64.5%. The pot is used to pre-tin wires which will then be solder
Electronics Forum | Wed Sep 18 17:21:19 EDT 2002 | slthomas
Dave, anything besides gold embrittlement to be concerned about if that concentration is exceeded? Never tried the stuff.
Electronics Forum | Wed Sep 18 18:10:15 EDT 2002 | davef
IMHO, this finish is more cosmetically appealing than technically desirable (and VERY profitable for the PCB maker). That editorial comment aside, you're correct. Increasing the concentration of gold: * Hardens the solder. * Increases the liquidou
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