Printed Circuit Board Assembly & PCB Design Forum
SMT electronics assembly manufacturing forum.
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We are experiencing voiding on one of our lead-free assembli... - Sep 17, 2012 by kkay
Ken ... I resized your picture so that it fits on the page b... - Sep 25, 2012 by davef
Thanks for fixing the picture. What you are looking at is a ... - Sep 25, 2012 by kkay
The more that I chew the idea of outgassing through the pad ... - Sep 25, 2012 by davef
We believe that Dave's analysis above is mostly accurate. R... - Sep 30, 2012 by robgd3
Have you come to a conculsion on this yet? If so please post... - Oct 02, 2012 by Mark M.
Well what we have seen so far is that the voiding occurs on ... - Oct 03, 2012 by kkay
Given that you're seeing it on nearly every part, we tend to... - Oct 03, 2012 by robgd3
We have had this issue on several parts in the past, typical... - Oct 21, 2012 by iddgmbj
I have attached a PDF overview of some test we have done and... - Oct 23, 2012 by kkay
great report and good to see results ... - Oct 25, 2012 by aj
Ken, The photo looks like results I have seen because the g... - Oct 25, 2012 by Sr. Tech
Here's a paper that may help ... - Oct 25, 2012 by davef
Wait a minute...Your peak temps are PbFree like. Why is you... - Oct 25, 2012 by Sr. Tech
Yes it looks like I attached the wrong reflow profile and I'... - Oct 25, 2012 by kkay
Hello kkay, can I ask what type of solder paste the #4 sampl... - Nov 01, 2012 by Kris
kkay