Electronics Forum | Thu Apr 01 10:05:32 EDT 2010 | brandenspencer10
Hi, My name is Branden Spencer and I am a jr. engineer at TTM technologies. We are currently having and issue with our wave solder process. We are getting what looks like either solder dross or voiding in our solder joints (through hole and SMT). We
Electronics Forum | Thu Apr 01 14:43:26 EDT 2010 | cbart
You say its in both smt and through hole, but, are you waving the SMT parts as well, I assume yes since you think its dross in the joints. Questions: 1- do you have higher mag scopes that you can zoom in a little more to see if these are voids or dr
Electronics Forum | Tue Jul 03 22:18:33 EDT 2001 | davef
Assuming that you are talking about voids in solder connections: * Consider voids on the surface of your solder connection a defect. * Consider voids that you can't see to be a process indicator. See A-610C, 12.4.8 for authoritative guidance.
Electronics Forum | Mon Jan 13 16:23:29 EST 2003 | Eric Brown
Does anyone know of documentation that specifies whether or not voids in BGA solder joints hurt or help performance?
Electronics Forum | Mon Jan 13 18:22:55 EST 2003 | davef
100 sec) and decrease reflow temp to 205C. * Understand that voids are primarily process indicators. There is experimental evidence that voids retard crack propagation locally around the void on a temporary basis. There is no standard, IPC or otherw
Electronics Forum | Tue Jul 03 16:58:27 EDT 2001 | bzark
Any opinion/spec/study on acceptability based on size and location of void in chip cap/res (e.g 0402) solder joints?
Electronics Forum | Mon Jan 17 13:09:12 EST 2000 | Dennis _F
We seem to have voids show up in one out of 5 BGAs during x-ray inspection. The x-ray is set up to accept the joint with anything less then 30% void area. I need anyones input of what during the process we can do to decrease the voiding and/or a good
Electronics Forum | Fri Apr 24 06:16:50 EDT 2009 | naguiar
CHANGE SOLDER PASTE, AND ADJUST PROFILES. Nolasco
Electronics Forum | Mon Jan 13 17:50:54 EST 2003 | jonfox
I was looking for some good documentation that could nail down some pros/cons of voids, but haven't found any. The biggest issue is if you are going to temp cycle the chips/PCB after assembly. Depending on the cycle, the situation of the test, it c
Electronics Forum | Tue Feb 19 22:50:00 EST 2008 | amarpreet41
Do you of reducing hole size of DIMM connector will improve solder voids??
