Electronics Forum: cracked (Page 1 of 97)

cracked joints

Electronics Forum | Fri Jul 12 22:15:56 EDT 2013 | ericrr

Sorry to build up your hopes. The latest thing to hit the air ways at work, I was accessed of fiddling with the oven settings, because there were reports of "cracked joints" there was no mention of where the cracks were, cracked at the pcb or cracke

cracked joints

Electronics Forum | Mon Jul 15 08:11:04 EDT 2013 | emeto

I am pretty sure that is a moisture issue. You should probably bake your boards and some of your parts.

cracked joints

Electronics Forum | Thu Jul 18 04:42:32 EDT 2013 | ericrr

Thanks for that, sorry Im late setting (set by someone else) Speedline Bravo Top 1st chamber, 2nd, 3rd, 4th. 170° (c), 180°, 190°, 270°. Bottom 170°, 180°, 180°, 260° chain speed 27cm/second.

cracked capacitors at SMT 1&2

Electronics Forum | Wed Aug 18 08:58:49 EDT 2004 | M.Enright

We are finding cracked capacitors at both first pass and second pass.

cracked capacitors at SMT 1&2

Electronics Forum | Thu Oct 21 15:33:56 EDT 2004 | Indy

I have seens cracks from AVX capacitors too. The thing is they already have micro cracks that are not visible to naked eye. When the capacitor is stressed the crack expands. One way of mitigating this is by tweeking your process. See how your singula

cracked capacitors at SMT 1&2

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

cracked capacitors at SMT 1&2

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

cracked capacitors at SMT 1&2

Electronics Forum | Tue Aug 17 12:03:47 EDT 2004 | mmjm_1099

Do a search on cracked caps in the search bar above. There is lots of past history for alot of us in this area.

cracked capacitors at SMT 1&2

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.

cracked capacitors at SMT 1&2

Electronics Forum | Mon Oct 25 09:32:59 EDT 2004 | bobpan

I have seen tooling cause cracked capacitors.....are the plastic standoffs compliant???? If they are not.....this could be the cause....

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