Electronics Forum | Mon Nov 30 14:29:46 EST 2020 | kylehunter
Hi all. A recent board has shown some issues with graping and non-wetting on some 0402 capacitors. I believe we have the issue sorted. A combination of a 4 mil stencil with 2 mil reduction not giving us enough paste, and too long of a soak profile.
Electronics Forum | Thu Dec 28 13:11:37 EST 2000 | RONALD MALICK
I AM LOOKING FOR A COMPANY TO DO SOME GOLD TAB CLEAN UP -- REMOVE SOLDER SPLASH. ANY SUGGESTIONS?
Electronics Forum | Tue Nov 30 17:32:37 EST 2004 | russ
If you are lucky, you might be able to chip the solder off the fingers with an Exacto knife and then polish it up with a pink eraser. This does work if the solder on the fingers isn't wetted very well. Russ
Electronics Forum | Mon Nov 02 22:02:01 EST 2009 | boardhouse
Umar - the boards are not assembled - so Solder splash is not applicable. Solder resist does not Melt it cures. As a board supplier I would not want my clients to adapt if they are receiving crap product, I would expect them to leave.
Electronics Forum | Fri Jan 08 16:48:21 EST 2010 | allwave
I did the same thing in ours (removed the chip wave). What kind of machine do you have? What I did on our TD machines, I added some extra channels to minize the solder "splash" on the void which is the reason more dross is formed. Hope this helps a
Electronics Forum | Mon Apr 14 12:26:11 EDT 2008 | muse95
We had one guy get injured three times by solder splashes 5 years ago - so due to one klutz, our whole production floor is a safety glass zone...
Electronics Forum | Tue Jun 17 11:02:47 EDT 2008 | dwelch123
You need to adjust the air kiss. The machine blows a slight amount of air after placement and it is probably adjusted too high.
Electronics Forum | Tue Jun 17 15:00:36 EDT 2008 | duchoang
"The machine blows a slight amount of air after placement and it is probably adjusted too high. " Is that adjustable and how to do it on TopazX2 Assembleon Pick and Place Machine?. Thank you very much.
Electronics Forum | Wed Jun 18 07:48:29 EDT 2008 | gemengr
vo^ cai' tab pick vacuum% set at 30 and tab mount vacuum % set at 30 . neu^' va^n~ con` bi. thi` set lai vacuum cho nozzle #72 in machine data. by the way duyHoang o*? ddau^ zi?? good luck
Electronics Forum | Fri Jul 24 07:43:56 EDT 2009 | davef
Your customer is correct. You are doing something wrong in your hand soldering process. Solder balls are a process indicator. Areas to assess are: * Moisture content of the bare board * Thickness of the copper plating in the through holes * Temperatu
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