Electronics Forum | Thu Nov 05 12:35:01 EST 2009 | martinphill
Davef, We have BGA (removed from PCBA). We have Cleaned up the pads. Instead of reballing can we directly mount on the Prime PCB like QFN. Thanks Martin
Electronics Forum | Tue Nov 10 13:31:00 EST 2009 | chris0595
When applying the ECCOBOND E3503-1 thermal adhesive to attach a HB-LED to the slug area of a MCPCB, should the OSP coating on the slug area first be removed? I have heard that OSP coatings have poor adhesion properties so I'm wondering how to do this
Electronics Forum | Thu Nov 12 07:51:34 EST 2009 | davef
We have the same concerns about using OSP with adhesives. On the other hand, some suppliers claim their products work with OSP. This have to be handled on a case-by-case basis. How well does OSP transmit heat? It's quite thin.
Electronics Forum | Tue Nov 24 10:43:06 EST 2009 | isd_jwendell
I have used SnBi from Alpha, and it worked well. The only issue I found is that you cannot have ANY Pb contamination.
Electronics Forum | Wed Nov 25 19:02:33 EST 2009 | glennster
Carol, I have an article that we have published on our counterfeits screening work. I will be happy to provide a copy if you send me a message. Glenn Robertson glennr@process-sciences.com
Electronics Forum | Tue Dec 01 14:47:57 EST 2009 | kjs123p
I am wondering what other Conceptronic users are using to oil the chain, lubricate the lead screw, and the grease used on the chain drives. I have contacted Conceptronic, and they gave me recommendations, but I am having trouble contacting them. Than
Electronics Forum | Fri Dec 04 15:36:24 EST 2009 | toddl
We have purchased a similar machine from Manncorp and have had good success. It does check for empty pockets.
Electronics Forum | Mon Dec 07 17:11:41 EST 2009 | stepheniii
This happens on the counting area which it is > into warehouse , Have you confirmed that? Have you seen empty pockets? Or are you taking someone's word for that? How many extra parts does the stockroom give to SMT to cover droppage?
Electronics Forum | Thu Dec 10 04:19:55 EST 2009 | cunningham
do you not have a problem with flux seperating from when it was chilled? due to our high mix low volume we really cant afford to have solder paste waiting for an hour or so till its ready before we can build
Electronics Forum | Thu Dec 10 09:06:47 EST 2009 | stepheniii
Just how cold do you store your paste? And what are your solder paste reps like? Here they fall over each other giving support for their paste. And have you seen the problem with flux separation or have you only heard about it?
