Electronics Forum: growth 2019 (Page 1 of 1)

Tin whisker growth testing PBfree reflow/snpb reflow

Electronics Forum | Tue Mar 26 06:07:58 EDT 2019 | pooja_4t

Hi i am referring Tin whisker report JESD201A class 2 standard from Vishay. i can see at TC -55/85C using pbfree reflow there are 0 growth at 500&1000 cycles. for snpb reflow and the same temperature and same cycle significant growth can be found. my

soldermask color change around vias

Electronics Forum | Fri Jun 07 12:34:30 EDT 2019 | teejsd

C3 just uses heated DI water that it applies, then pulls back into a disposable cartridge. Machine then applies a 10V charge to the sample & measures leakage current(nA,I think) over time(sec). If the leakage current is high enough/fast enough, you

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