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Electronics Forum | Wed Sep 12 18:11:03 EDT 2001 | davef
First, what on the area array package are you analyzing � * Package cracking? * Cracked solder balls? * Er, what? Second, most failure analysis discussions consider dye penetration to be a non-destructive test, but then again most failure analysis
Electronics Forum | Sat Oct 15 01:47:09 EDT 2022 | auriga2001
I might need some help to explain what I'm seeing here. The first 3 look like before pictures. They seem ok. The last 3 look like after pictures. It doesn't look like fracturing joints as would be a normal failure for vibration test, more like it rea
Electronics Forum | Thu Aug 03 12:51:20 EDT 2006 | Ofer Cohen
I'd appreciate your support in the following issue: A significant batch of PCBs failed on de-lamination. The failure was identified, of course, only after the assembly. There is a big variety of components (BGA 1mm, BGA 0.8 mm, FQPs and other SMT co
Electronics Forum | Thu Aug 03 12:51:59 EDT 2006 | Ofer Cohen
I'd appreciate advise in the following issue: A significant batch of PCBs failed on de-lamination. The failure was identified, of course, only after the assembly. There is a big variety of components (BGA 1mm, BGA 0.8 mm, FQPs and other SMT componen
Electronics Forum | Thu Mar 25 09:14:09 EDT 2010 | krish_bala
Hello, I have been having some troubling issues when it has come to BGA Placement and I was hoping if there have been others who have been able to resolve similar issues. We are curently doing reworks on a variety of BGA, but seem to be having issu
Electronics Forum | Tue Mar 16 18:27:34 EST 1999 | Earl Moon
| We are having a small number (~2%) of our boards pass our manufacturing diagnostics, fail once they reach the customer, fail when they get back to us and then start working again after handling them for a short time. We have eliminated a lot of it
Electronics Forum | Fri Jan 15 13:35:03 EST 1999 | Terry Burnette
| I saw the problem of void in solder bump or in lead less component or some BGA. But I didn't have standard specification of that void is accept or reject? Do any body have the better idea or suggestion of the criteria ? | | Thank you, | Wirat
