Electronics Forum | Thu Sep 19 02:45:33 EDT 2002 | bugsjoe
Thank you ur reply Dave. Let me explain our COB workflow: 1. unpack PCB (FR4,LPI,HASL)(the thickness of gold and nickel we can't be find)(No SMT before) 2. clean the pcb by rubber 3. blow the pcb by di-ionic gun 4. attach die by adhesive gel 5. cure
Electronics Forum | Sun Sep 22 13:14:56 EDT 2002 | scottefiske
Stop the lines...! Stop building defects and rework into your product. Contact Fab Supplier and have pipeline filled for small amount of replacement fabs to keep lines running and limiting production scheduling and impact. Request to have the board
Electronics Forum | Mon Sep 23 12:42:15 EDT 2002 | dragonslayr
yea - yippie- Scott's the man!!!! good answer - I support the notion that in the long run, stopping the line, getting the root cause determination, is not only effective but efficient. It is hard to do because we all are so used to fire fighting on
Electronics Forum | Thu Sep 19 21:23:42 EDT 2002 | davef
I'm not saying that an eraser will necessarily work. What I'm saying is that some erasers may cause more trouble than the eliminate. Look here http://aic.stanford.edu/jaic/articles/jaic28-02-003_2.html We prefer a brand called Ruby Red. The "ole
Electronics Forum | Sat May 13 07:03:16 EDT 2000 | Sal
guys, Currently running a very high volume product, with the gold fingers at the edge of the board masked off using Kapton tape to avoid any form of contamination during reflow and wavesoldering. I've heard alot of about the gold finger gloves, my q
Electronics Forum | Mon Aug 09 11:34:25 EDT 2004 | Woodsmt
I am looking for data / info on how flux may contaminate the solder in a Wave. I have a customer who requires a no clean process. Our wave is equipped with 2 separate fluxing systems and I would like to use OA in one and the No Clean in the other. Th
Electronics Forum | Fri Apr 14 11:00:38 EDT 2000 | Dave F
Mario: Your ask a very broad question and give no background information. Generally, the amount and type of residues present on a printed circuit board at the very beginning of a SMT line depends on the exposure of the board up to that point. For
Electronics Forum | Mon Aug 09 20:47:21 EDT 2004 | KEN
I think OA flux left on the pot would quickly looses its activity and become part of the dross waste stream, and smoke stream for that matter. Also, if your wave is setup properly your selective pallets will scour (push) the top of the lambda wav
Electronics Forum | Mon Aug 13 08:04:43 EDT 2007 | davef
Search the fine SMTnet Archives [on gold finger], while you're waiting for others to reply. For instance: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=42759
Electronics Forum | Sun Sep 17 22:50:20 EDT 2000 | Sartor
I am looking for a solution for gold finger cleaning and repairing.Can anyone recommend good solution(s)?Also,can anyone recommend a good flux paste source(s)?Thanks.
