Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
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We are down to the last few unresolved PCBA test failures in... - Aug 14, 2019 by Steve Thomas
Clear pictures of failed MLCC could help investigation. ... - Aug 15, 2019 by sssamw
It could be delamination of the layered material of the MLCC... - Aug 15, 2019 by davef
Please pardon the poor images - it's difficult to focus and ... - Aug 15, 2019 by Steve Thomas
Thanks Dave. I am thinking that this may be a case of knit ... - Aug 15, 2019 by Steve Thomas
Poor knitters get blamed for everything ... - Aug 15, 2019 by davef
True dat...it's the first thing I look for on a molded part ... - Aug 15, 2019 by Steve Thomas
Never automatically rule out that the parts were received de... - Aug 15, 2019 by Stephen
Thanks, Stephen. I'm actually leaning towards that (knit lin... - Aug 15, 2019 by Steve Thomas
I just found this. https://www.avx.com/docs/techinfo/Ceramic... - Aug 15, 2019 by Stephen
I agree that this looks like knit line failure. Here are so... - Aug 15, 2019 by EdHare
Hi Ed, These images contributed to my coming to that conclu... - Aug 16, 2019 by Steve Thomas
Steve, Yes, in my experience clients send in field failures... - Aug 16, 2019 by EdHare
Thanks Ed. I guess about all we can do is hope that the extr... - Aug 16, 2019 by Steve Thomas
At least one of them looks like a handling issue to me - the... - Aug 19, 2019 by Robl
Dave, Perhaps, but my interpretation of that photo is that ... - Aug 19, 2019 by EdHare
Check from the component distributor/manufacturer if they ca... - Aug 22, 2019 by Jandon
I got solution to manufacturer to find out the crack of MLC... - Sep 10, 2019 by itrueriko
CRACKS: THE HIDDEN DEFECT by John Maxwell AVX Corporation - ... - Oct 05, 2019 by davef