Electronics Forum | Mon Apr 23 12:30:42 EDT 2007 | davef
Your low residue flux may not be compatible with the soldermask
Electronics Forum | Mon Feb 02 14:58:59 EST 2009 | pjc
Yes, thanks, I heard that, but also heard there are some formulations that are closed-loop filtration media friendly.
Electronics Forum | Wed Sep 09 12:20:28 EDT 2009 | richardli
What is the cause of this discoloarion? Soldermask masterial wrong? Thanks.
Electronics Forum | Mon Aug 23 13:59:18 EDT 2010 | swag
Under a scope, make sure the PCB has soldermask between pads.
Electronics Forum | Mon Jun 25 03:52:24 EDT 2012 | awtm
Our Customer had detected tarnished pad on ImAg PCBA and had conducted several SEM-EDX test at the soldermask below some of the chip resistors. High concentration of sulfur was found and it can be significantly reduced after further chemical cleaned
Electronics Forum | Tue Jan 08 09:23:18 EST 2013 | lock_2002
This is a question regarding soldermask between pins of fine pitch devices. The majority of our production designs end up with at least 2-3 mils of copper thickness on the external layers due to blind vias, wrap plating requirements, etc. Our curre
Electronics Forum | Tue Aug 02 12:05:37 EDT 2016 | ttheis
Leave a circular area around the fiducial without any mask so bare board is shown.
Electronics Forum | Tue Aug 02 12:11:01 EDT 2016 | ttheis
Like this:
Electronics Forum | Wed Aug 03 12:20:21 EDT 2016 | proceng1
Sorry, Acculflexs
Electronics Forum | Thu Oct 21 15:42:19 EDT 2021 | mikeybinec
thanks. figured somebody would now. I couldnt find the film anywhere