Electronics Forum | Wed Jan 01 22:19:33 EST 2020 | sssamw
Solder ball attached on solder joint without violation minimum electrical clearance is acceptable. If your process parameter including stencil not changed, suggest you check if solder pasted being pushed out after IC placement, also check if solder j
Electronics Forum | Fri Jan 03 11:37:24 EST 2020 | emeto
Sometimes might be internal change with personnel. Issue is actually there, but if no one questions it-it is not an issue. With 7mil stencil there is a good chance to have solder balls. So were they registered or were they fixed/cleaned?
Electronics Forum | Sat Feb 06 07:14:40 EST 2021 | agoesfirmanto
Dear Sirs, very sorry being late reply after a year. Thank you very much for your advices, you are absolutely correct after reduce grounding pad size. No more solder ball issue. Thank you very much. highly appreciate all of your supports. Best re
Electronics Forum | Sat Feb 06 07:17:47 EST 2021 | agoesfirmanto
Hello Pak Zack. very sorry late reply Thank you for your sharing. Solder ball issue already solved. Best regards, Agoes
Electronics Forum | Tue Apr 27 18:43:29 EDT 2021 | reem1993
Hi, I encounter the phenomenon of Solder Ball on pads after printing useing DEK, is someone encounter the same problem? How may i fix it? best regards,
Electronics Forum | Thu Oct 01 11:40:17 EDT 1998 | Justin Medernach
Are there anyone who can give me the answer about solder ball problem? | We have 12 layer PCB and double sided PCB. After one side reflow soldering We found lots of solder ball under the PCB. The solder ball was coming out from via hole. | So
Electronics Forum | Fri Oct 02 01:21:08 EDT 1998 | Mike Cox
Kyung Sam, | | Justin is correct, there is definately either a board design problem or the PCB maker issue. Obviously there are many mixed technology boards built in the world so I would lean towards a design issue as the root cause. Should you or
Electronics Forum | Sat Oct 31 10:56:16 EST 1998 | Dennis Barry
| I finally got my problem figured out on the bridging, the | only thing I'm finding is that I notice some litlte solder balls on the bottom of the board. Is that normal? Is that why I'm getting bridges? Has anyone came across this problem and pass t
Electronics Forum | Wed Feb 17 11:31:37 EST 1999 | Bill Schreiber
Dear Al, Are these reworked, double-sided boards? If you attempt to clean side #2 of double-sided misprint in a "spray" type cleaner, millions of solder balls can be broadcast throughout the same chamber as the populated side #1. Or, if this is a s
Electronics Forum | Fri May 29 14:35:05 EDT 1998 | Steve Gregory
| We are getting solder balls after reflow of surface mount components. We are using a no-clean paste and a new jar seemed to help for a little bit. Any ideas? Thanks in advance Hello Ryan, There's a quite a few things that can cause solder bal
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