Electronics Forum | Thu Nov 17 21:52:27 EST 2022 | stephendo
You might be able to create a process that involves testing a sample before each run. But then you would need something showing that a given batch would be consistent enough to justify testing a pcb to prove the batch. Or if they accept SPC then you
Electronics Forum | Fri Jan 06 00:03:10 EST 2023 | SMTA-64419298
Hello Evtimov, sorry...just saw post as I was looking through list...a bit late. I don't know if you ever got your answer. IPC-4552A covers EniG finishes and suggested shelf life. I've referred to these doc's quite a bit. Good spec's ! Yes, I beli
Electronics Forum | Wed Jan 04 03:08:12 EST 2023 | msirifat
Hello Stephen, thanks for the advice. We are producing LED TVs & we have a facility for SMT and manual insertion. We are also thinking of changing the board finish from OSP (due to its shorter shelf life) to ENIG/Immersion Tin.
Electronics Forum | Wed Dec 15 21:29:34 EST 2004 | davef
We�d say that it�s incorrect that ENIG solderability protection cannot be steam aged. It�s true the immersion tin and silver cannot be steam aged. We believe that most of the issues surrounding the poor performance of ENIG after steam aging is attr
Electronics Forum | Tue Feb 25 06:06:11 EST 2020 | hexton
I am currently weighing up my options for resistors that will be fitted to a fully assembled PCB (PTH&SMT). Do I omit the stencil apertures leaving exposed pads (ENIG) so they can be hand soldered with fresh solder. Considering shelf life for soldera
Electronics Forum | Thu Feb 27 02:55:53 EST 2020 | hexton
I want to avoid peoples preferences as they will differ and will not be a deciding factor. A heat gun will introduce risk to surrounding PTH components and having to add protection for those, will limit any gain in productivity. There is no question
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