Electronics Forum | Wed Dec 06 07:41:48 EST 2000 | John
To the post on the depaneling system. Almost any smt component can (and will according to Murphy's law) be damaged during hand breakout. Our company began using SMT a few years ago, and our primary customer absolutely will not allow us to hand brea
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 | Fri Dec 08 23:02:24 EST 2000 | LeeKibler
Beware the foam fluxer. I had a problem with cracked caps that just about drove me off the deep end. I discovered that my foam fluxer air knife was not turned on resulting in excessive flux. The excessive flux (VOC free) was not properly dried off
Electronics Forum | Thu Sep 11 15:23:31 EDT 2003 | Peter L.
I have come across a rash of failed assemblies that have 0805 capacitors and resistors, bottom side glued, wave soldered and washed. Trouble shooter reported touching up the solder joints on a few areas and the boards would pass test. I had a look a
Electronics Forum | Sun Sep 26 05:59:17 EDT 2004 | Phil
Check out http://clivetec.superihost.com/Capacitors.html there are tables there that will let you work out your values.
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 | Tue Aug 17 15:52:29 EDT 2004 | davef
We agree with Rob. It sounds like someone is trying to pound your caps through the board.
Electronics Forum | Tue Aug 17 10:37:45 EDT 2004 | M.Enright
Some cracks are really obvious,straight down the middle of the capacitor.Some are slight hair line fractures which fail at ICT.In all cases seen,all cracks are through the centre of the cap.My worry is that there may be some which have fractures and
Electronics Forum | Mon Aug 16 11:25:46 EDT 2004 | davef
A little more information, please: * Describe the location and pattern of your cracks * Tell us the type of capacitor that you're destroying
Electronics Forum | Thu Aug 19 11:06:59 EDT 2004 | M.Enright
Are all of these parts from the same supplier? No. We have three different suppliers,AVX,Dublier and Kemet.We have had cracked capacitors from reels of each of these suppliers.
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