Electronics Forum | Thu Sep 13 13:34:49 EDT 2001 | Dave G
Too much Convection Airflow in the Reflow Oven blowing parts around ? Moisture Contaminated Parts out gassing ? Board out gassing? Just some thoughts, DG
Electronics Forum | Sat Jul 25 08:47:25 EDT 2009 | davef
Both "moisture content of bare board" and the "thickness of the copper plating in the PTH" are related to each other. As you heat the solder connection, moisture in the board boils and out-gasses through the solder connection. Plating with the proper
Electronics Forum | Thu Apr 25 01:22:29 EDT 2019 | smith88
Out gassing not out fading
Electronics Forum | Tue Aug 06 17:43:10 EDT 2013 | davef
I agree with SOB. First, someone is thinking too much and has too much idle time. And second, controlling volatiles from routine fluxing should be much more concerning than volatiles from out-gassing from delamination. In most plants, delamination is
Electronics Forum | Thu Oct 04 13:04:52 EDT 2001 | Hussman
Without seeing your X-ray, it sounds like your BGAs are out gassing. This casues the situation you described. Try baking some BGAs and run them along with ones not baked to see.
Electronics Forum | Wed Sep 17 11:16:36 EDT 2003 | mantis
Hi all, With regards to the recent thread about jumping sot23.I was wondering if there are any white papers or technical articles on the phenomon of outgassing tantalum capacitors. Regards, Mantis
Electronics Forum | Wed Sep 17 15:44:28 EDT 2003 | davef
Look here: http://nepp.nasa.gov/DocUploads/CE5125B5-E0EB-4CFA-8867BE3F3E342CA5/moisture%20effect%20Ta%202C%20M.pdf
Electronics Forum | Fri Jul 25 07:26:45 EDT 2008 | realchunks
From what I can understand, you say this only happens on one type of BGA (?). Try baking this BGA. You may have out gassing during rework. Do you use tacky flux during rework? If so, try a different flux. And last, check your rework profile.
Electronics Forum | Sat Feb 19 10:07:51 EST 2011 | kahrpr
What kind of voids? There are voids from out gassing (moisture) and voids from contamination and or poor solder ability ? If it is on one component I would look at the part. Also if it a big Varistor make sure the board is preheated properly.
Electronics Forum | Tue Jan 10 11:39:16 EST 2012 | cyber_wolf
Well it can only be one of two things. Flux residue from your paste or some type of out gassing from the boards you are running.
