Electronics Forum | Thu Feb 12 16:59:11 EST 2015 | emjasaph
We have a board that has an RF shield on one side and ceramic capacitors on the other side. The side with the capacitors is reflowed first, then the other side is reflowed. We have been experiencing cracked capacitors in these boards. My guess is tha
Electronics Forum | Wed Aug 18 08:58:49 EDT 2004 | M.Enright
We are finding cracked capacitors at both first pass and second pass.
Electronics Forum | Thu Mar 02 13:20:26 EST 2006 | inds
jagman, take a hard look at a capacitor under the high mag microscope before you start assembling it.. I remembering seeing cracks even before the assembly. apparently all chip capacitors have crack at the intersection between the capacitor head and
Electronics Forum | Tue Feb 28 16:09:27 EST 2006 | outgasser
Does anyone have any insight as to the cause of cracked chip capacitors during SMT? Z-stop? Thermal shock? Any help is appreciated.
Electronics Forum | Tue Feb 28 16:53:26 EST 2006 | slthomas
Depaneling with the parts in question near a V-score?
Electronics Forum | Tue Feb 28 17:08:09 EST 2006 | outgasser
Steve, I believe you hit it right on the head! Thanks! Gary
Electronics Forum | Wed Mar 01 12:28:48 EST 2006 | Chunks
Round cracks that look like it's from a placement are generally from a too big Delta T in wave (been there done that). All other cracks are anomalies. Ya gotta see it find it.
Electronics Forum | Wed Feb 05 10:51:17 EST 2003 | bradlanger
Thanks for responding. Do you think I could have my oven profile too aggressive
Electronics Forum | Sun Dec 03 15:35:44 EST 2000 | Michael Nguyen
Wow. And I thought I was the only one having problem with ceramic capacitors.I too am having problem with cracking ceramic capacitors 1206 package.We changed vendors and still having the same problem. I had to reverify my entire process and I had to
Electronics Forum | Tue Feb 28 17:09:40 EST 2006 | outgasser
PWH, Thanks for all your input. All these areas are of concern which I will look closer into. thanks! gary
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