Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
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We're testing this PCB in 40C 93RH to see if we get ECM or C... - Apr 04, 2019 by TeejSD
I wonder if this discoloration isn't delamination. I'd discu... - Apr 10, 2019 by davef
Does look like delam, if its that bad and the board looks li... - Jun 07, 2019 by BLT Circuit Services Ltd
Closer pics at angle would seem to support soldermask delam.... - Jun 07, 2019 by TeejSD
Went thru wave solder, yes ... - Jun 07, 2019 by TeejSD
We also have a Foresite C3 for spot testing for ionic contam... - Jun 07, 2019 by TeejSD
Unfortunately for me, I can't say whether those balls were f... - Jun 07, 2019 by TeejSD
This does sound like my failure! Failure typically goes awa... - Jun 07, 2019 by TeejSD
C3 just uses heated DI water that it applies, then pulls bac... - Jun 07, 2019 by TeejSD
Yes neither our HPLC IC nor our C3 could detect any concerni... - Jun 07, 2019 by TeejSD
Would be well worth testing a bare board first ... - Jun 07, 2019 by BLT Circuit Services Ltd
ask your supplier to make micro-section to check whether it ... - Jun 21, 2019 by alanyang
Even 93% humidity, it will has no condensed water film insid... - Aug 23, 2019 by sssamw