Electronics Forum | Thu May 01 18:01:38 EDT 2003 | jym2000
Just take care about reflow profile with this kind of product, you can get a bad-formation in your PCB (Flexcable or your flexcircuit) however you want to call... This bad-formations looks like a solderballs (Microscopio) Regards Jesus
Electronics Forum | Thu Jul 15 15:37:29 EDT 2004 | davef
Get started by searching the fine SMTnet Archives. We love talking about tombstoning and solderballs. Good luck.
Electronics Forum | Fri Mar 18 10:51:25 EST 2005 | russ
Are we talking about reflowing the two boards together after the one gets the solderballs reflowed onto it?
Electronics Forum | Sun Mar 26 13:17:06 EST 2006 | ausajid
hi thank you very much for swift reply and help in reduction of subjected problem. i will study and explore that site and confirm the results. many thanks
Electronics Forum | Wed May 03 16:42:16 EDT 2006 | Silver Sparrow
We run both No-Clean and Water Soluble boards without any problems. We had problems with solderballs, but adjusted the P&P machines not to push the parts into the paste so much. Home plate apperatures help also. The biggest question is if your cus
Electronics Forum | Wed Aug 16 13:31:30 EDT 2006 | a_laser
You can stop cleaning after a job when there is no more paste in the apertures. Under wiping should be done with a quality cloth and should leave no paste on the underside of the stencil (assures good contact on the next print and reduces chances of
Electronics Forum | Fri Aug 24 09:29:08 EDT 2007 | jgrootkoerkamp
Solder balls with wave soldering can have different causes. The two most important are the solderresist and the flux. I have similar problems, after changes the flux type 90% off all solderballs are gone. KR, Joris Groot koerkamp
Electronics Forum | Mon Sep 10 11:13:47 EDT 2007 | russ
Aren't the solder balls a result of the blowholes? you know the solder that came from the blowholes is now the solderballs on the resist! hahaha :-) Russ
Electronics Forum | Tue Aug 05 02:02:51 EDT 2008 | lococost
Have you tried the alcohol based flux on your ive yet? (even if it isn't specd for leadfree). Water based flux seems more prone to solderballing. edit: why is sel ective changed to ive and alte rnative changed to native?? censorship for innovation
Electronics Forum | Tue Mar 31 05:48:32 EDT 2009 | d0min0
depending on what is diameter of your balls ;) and smallest electrical distance on the boards (IC legs?? or other) solder balls trapped in ?? or not ?? base on that to see how dangerous your solderballs can be
