Electronics Forum | Mon May 26 08:59:32 EDT 2008 | davef
It's possible that the flux residues from the solder paste used in your SMT process is not compatible with your water wash process. For instance, some no-clean fluxes leave resudues that are not water washable. When these residues are washed, they de
Electronics Forum | Mon Sep 21 05:08:12 EDT 2015 | anilwagh
Machine is working as per above parameter but camera window shows mixed color while read fudical mark also while running calibration plate camera window show black and white color block not show white background.
Electronics Forum | Sat Sep 12 09:49:38 EDT 2015 | davef
If the boards were still "wet" after DI wash, your [I assume] low res flux could be reacting with the moisture on the board and causing the white spots. The preheater in the wave could have more dryification than the preheater on the selective solde
Electronics Forum | Wed Aug 03 10:17:27 EDT 2016 | proceng1
I did "scuff" the fid so it wouldn't be so shiny. Zero affect on contrast. We ended up moving it to another printer. We have 3 essentially the same printers, two completely washed the image out, the third sees it perfect as if it were black and wh
Electronics Forum | Fri Aug 05 15:09:30 EDT 2016 | proceng1
I grabbed another White board that does have the "natural" board around the fiducials. Still no go. See pictures
Electronics Forum | Wed Oct 11 10:29:28 EDT 2000 | G. English
Try the following steps : FIRST CHECK THE ARCHIVE for further information, it WILL help you. Step One : What�s the chemical analysis of this white res? Obtain a sample. It could be tin, rosin, or something else??? Step Two : The fastest way I know
Electronics Forum | Mon Dec 06 08:55:11 EST 1999 | Dave F
Vinesh: The white residue is perfectly expected, when washing a no-clean with water (and some alcohol). In some cases, the white resin that you are seeing can be removed. Your paste supplier should be able to provide details. Recognize that clean
Electronics Forum | Tue Sep 26 10:22:51 EDT 2006 | SWAG
Histogram: Place standard tooling block in centernest. Jog camera over block. Jog z-axis to soft limit. Place a white card under camera. User mode to test. Turn board lamp on. From test menu, select histogram. With board lamp on and white under camer
Electronics Forum | Sun May 25 10:30:31 EDT 2008 | necdetozyonum
Dear All, I would like to take your opinion about the result that we have faced after cleaning the PC assemblies in a cleaning machine (Miele Dishwasher) with the cleaning detergent Qualitek Everkleen 1005. We use DI water for cleaning purpose in t
Electronics Forum | Fri Apr 16 12:47:48 EDT 2010 | boardhouse
White solder mask does have a tendency to yellow within the lead free environment. so double coating will not help any. I due believe the flux is a factor in the yellowing but due to the color is the main reason. Find out what brand of S/M mask they
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