Electronics Forum | Thu Mar 02 15:32:30 EST 2006 | russ
got it!
Electronics Forum | Fri Dec 08 06:34:55 EST 2006 | Rob
Try flux buster ICT pins.
Electronics Forum | Wed Dec 20 04:34:10 EST 2006 | greg york
Consider it done Cheers Greg
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
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
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
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
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.
Electronics Forum | Wed Nov 29 09:25:42 EST 2006 | russ
So why are you telling us about the solder bar? What is the flux? that is what you need to change, you have a rosin based flux it sounds like. you can change probes in test fixtures or change flux chemistries. Russ
Electronics Forum | Wed Nov 29 09:54:05 EST 2006 | jhaviland
Washing these boards would be a great help. The flux will build up on the probes and possibly corrode them depending on it's composition. Aim for a process that will burn off the majority of the flux, or change chemistries if washing is not an opti
