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
Electronics Forum | Fri Apr 11 11:26:09 EDT 2003 | Brian W.
Cracked capacitors usually are not found at ICT. Unless the cap is completely cracked, the capacitance may not change much, and the usual failure mode is a leakage current. This is usually only seen in ESS type testing, when temperature and humidit
Electronics Forum | Tue Aug 17 11:28:07 EDT 2004 | rlackey
Hi, I'm not the expert DaveF is, however I have seen quite a few cracked chip capaictors in my time - most of these were from lack of Z height adjustment on a turret chipshooter to compensate for various thickness. Do you have separate 1206 thick
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 | Fri Apr 18 16:53:25 EDT 2003 | takfire
DST, What was the crack signature? Was the crack parallel with the internal electrodes or 45� with the terminal electrode? It is also important to determine the orientation of the failed caps on the PCB (in regards to depaneling). Perhaps the cap
Electronics Forum | Mon Oct 30 09:00:07 EDT 2017 | rvines1
The difference is that our customer expected these resistors to be marked, and Panasonic's documentation online is inadequate to prove otherwise.
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 | Fri Sep 08 13:45:47 EDT 2017 | rvines1
Is the industry really moving toward unmarked chip resistors? I've been seeing a lot of unmarked 0603 resistors lately, and when I check the data sheets, all their photos are of marked parts, and they don't say anything about it.
Electronics Forum | Mon Sep 11 12:37:03 EDT 2017 | rvines1
Our AOI machines have actually caught wrong resistors before. A reel gets swapped, a vendor sends a wrong part, things happen. To think that we can't rely on resistor markings anymore, that just sucks.
Electronics Forum | Thu Apr 10 07:24:56 EDT 2003 | pjc
I had a similar problem with cracked caps. I checked all my processes and finally found that the caps were cracked in the tape. Check the condition of the caps in the tape. This was unique to one mfg.- EPCOS.
