Electronics Forum: cause (Page 2 of 496)

what is the cause of humming/vibration of a ballast x'former

Electronics Forum | Thu Mar 02 13:31:25 EST 2006 | russ

That was a good reply for someone that has been Dehumanatized! HAHA

what is the cause of humming/vibration of a ballast x'former

Electronics Forum | Thu Mar 02 13:49:43 EST 2006 | Chunks

Dehummmmmmmm - anized!

Flux residue cause high false reject at ICT

Electronics Forum | Fri Dec 08 06:34:55 EST 2006 | Rob

Try flux buster ICT pins.

Flux residue cause high false reject at ICT

Electronics Forum | Wed Dec 20 04:34:10 EST 2006 | greg york

Consider it done Cheers Greg

Multilayer Ceramic Capacitor (MLCC) failure root cause analysis

Electronics Forum | Wed Aug 22 12:48:47 EDT 2012 | tpatrickwalsh

They are using the method where scored boards are separated using a rotating wheel / blade. I realize this is not the best process, however these capacitors are more than 10 mm from the edge of the board. From some reading online I think that means

Poor HASL Finish known to cause solder shorts?

Electronics Forum | Fri Sep 24 09:49:53 EDT 1999 | C.K.

Hi Folks: We've been having bridging problems on our fine-pitch QFP's, despite thorough inspection of paste height, volume, and placement accuracies....profiles look good also. The bridging is happening after coming out of reflow...one last thing t

Can excessive reflow(longer dwell time) cause open joint?

Electronics Forum | Thu Jul 29 09:00:56 EDT 2004 | Bryan Sherh

Some short happens between the balls of CPU socket in my site.we decrease the reflow time from about 90sec to 50 sec and decreased the fail rate of short.but x-ray shows balls from part of the Ball array deformed....we can't further decrease the time

Flux residue cause high false reject at ICT

Electronics Forum | Thu Nov 30 19:55:30 EST 2006 | greg york

This may be worth checking out are you sure it is flux residue and not undercured plasicizers coming from solder resists due to the higher Lead Free temperatures killing the undercured resist, this causes many no faults found and bridging, solderball

what is the cause of humming/vibration of a ballast x'former

Electronics Forum | Thu Mar 02 07:54:07 EST 2006 | davef

Here's some explanations: http://www.psaudio.com/articles/hum.asp http://www.signweb.com/neon/tips/neontip12.html We like the 'don't know the words' one.


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