Electronics Forum | Thu Apr 23 07:51:45 EDT 2009 | scottp
Every paper I've seen published shows that BGA voids either have no effect or actually give a slight improvement. The one exception are voids with a root cause in bad incoming boards, such as champagne voiding where nearly the entire interface is go
Electronics Forum | Tue Jun 02 02:52:24 EDT 2009 | jasreeves
Probably covering old ground here, but when I read marketing data, brochures etc for new P&P machines, they always state the CPH. You know... 12,000 chips per hour or 18,000 chips per hour and so on and so forth. However, you try and place 0201's at
Electronics Forum | Tue Jun 02 17:45:46 EDT 2009 | boardhouse
Hi Nicoleta, As a board shop, either are good choices but in my experience with my customers ENIG has alway been the favorite due to it is easier to work with in regards to not having to tweak your equipment. As long as the board shop that you are u
Electronics Forum | Mon May 25 21:10:28 EDT 2009 | padawanlinuxero
Hello !! I have a problem with my wave solder oven, in one of the products we made has connectors on one side of the pcb and in the other one has SMT components the process is kinda tricky on the SMT components we use an adhesive and put to the refl
Electronics Forum | Thu Jun 11 10:02:36 EDT 2009 | dyoungquist
Our cleaning process involves the assemblies being completely immersed in the water bath of the ultrasonic cleaner. The assembly has a QFP44 on it. Customer stated that when these assemblies have been cleaned with water in the past (at a different
Electronics Forum | Wed Jul 01 13:41:25 EDT 2009 | jlawson
Are you sure it is the Z axis, and not the > rotation, I had one machine which often did > something similar, it would buzz loudly, > especially if you touched or applied rotation > pressure to the gear belt which rotates the > head. It never ca
Electronics Forum | Mon Jul 20 12:39:11 EDT 2009 | bigdaddysoy9
Hello Reese, Lifted leads are and have always been a big concern for us. We were using a system that had 12 cameras total. 8 angled and 4 top-down. I could not get that to catch lifted leads without having a ton of false calls. I thought that may
Electronics Forum | Fri Jul 31 09:12:35 EDT 2009 | gregoryyork
Dear Sean Contrary to believe MOST formulators of No Clean fluxes or No Residue fluxes use organic acides that are in fact weak and benign. IF the residue was left on the board and you had a condensing atmosphere then you may see some issue with fal
Electronics Forum | Fri Aug 07 09:53:12 EDT 2009 | kpm135
The Z-axis Drive card on our MPM UP2000 HiE fried. We replaced it with a new card, setting all the jumpers to match the old card. After that we had to recalibrate the Z-axis and the snugger height but the problem is that the camera is now too close t
Electronics Forum | Wed Sep 02 02:45:01 EDT 2009 | rocko
Hi All, Let me summarize the key facts and findings: 1) This is not a permanent problem. Only one production batch was affected. The cleaning solution was exchanged and now the cleaning process runs normally. 2) Probably the residues are not ion
