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 | Fri Jul 10 01:50:53 EDT 2009 | jan_mancelita
> Hi, do you know where and how we can tests > 0402 > ceramic capacitors? We would like to > test them > individually before we place > them on our board; > so as to get some test > yield and the distribution > of the > parameters of this c
Electronics Forum | Thu Aug 17 16:12:48 EDT 2000 | John Maxwell
We are using a water wash paste for our boards which is leaving ionic contamination ( salts). In the presence of low humidity levels this creates the effect of a capacitor. Our product which is test instrumentation does not calibrate. I am lookin
Electronics Forum | Fri Apr 11 00:32:17 EDT 2003 | Joe
Hello, Regarding the failures not showing up at ICT. Failed decoupling caps are notoriously difficult to diagnose within ICT. Check with your test engineering folks and ask them how they've coded for these parts. I doubt that they will say those
Electronics Forum | Fri Sep 03 11:28:18 EDT 2004 | KenF
Fine crack in multi-layer ceramic capacitor (MLCC) may not be detectable by capacitance check.Could anyone out there advise which is the most appropriate method to test/detect fine crack ?
Electronics Forum | Wed Feb 16 14:50:46 EST 2005 | Valerie
You could have a supplier problem. We had a similiar problem with one of our capacitor suppliers. I would suggest doing a solderability test on the component right out of the tape.
Electronics Forum | Wed May 25 09:56:27 EDT 2005 | jdumont
What is everyone using to secure their caps on products that go through ESS testing. We have been using Dow 3140 RTV but it takes too long to dry and I read that RTV isnt the best anyhow. Any suggestions...
Electronics Forum | Sat Jan 07 06:32:04 EST 2006 | mskler
Can anybody suggest that how we can chek quality for soldering of chip capacitor & chip resistor. we are getting prob. of dry solder in chip components. All Replies should be highly appriciated.
Electronics Forum | Tue Sep 04 02:28:17 EDT 2007 | philip_yam
Any one has experience over solder voids in oscillator capacitor joint could result in high phase noise during the digital performances test? The noise signal was gone after solder touch up. What could be the root cause of the high phase noise?
Electronics Forum | Wed Apr 29 01:38:38 EDT 2009 | nibirta
already did this test. No solder balls. i have printed the pads without the component. No solder balls. Only with the component. The problem is, it splashing the around components. solder balls wew found on the body of a connector and on top of it. T
