Electronics Forum | Thu Sep 22 14:54:01 EDT 2011 | hegemon
You might find a lot of experience in the forum here, but maybe not so many consultants for this niche. BGA underfill is not rocket science, and in my opinion, the key items are the material chracteristics, and the dispensing method and pattern. Fo
Electronics Forum | Thu Sep 22 16:06:07 EDT 2011 | davef
Underfilling BGA is an uncommon practice. We'd start looking to find a consultant recommended by our: * Dispenser company * Underfill supplier
Electronics Forum | Fri Sep 30 06:05:06 EDT 2016 | kildor
Hi, I have a pcb loading problem with an SS-AD2 dispenser machine. Are there anybody, who has some experience with this machine ? If yes, then please contact with me, and i will write more details about the problem. Thanks. Kildor
Electronics Forum | Mon Jun 11 10:40:46 EDT 2007 | ramseyn
Jim, Another good resource would be Asymtek (www.asymtek.com) I have had a lot of luck with their dispense equipment for underfilling applications. They have run tests in the past using various methods for our company to determine what type of epoxy
Electronics Forum | Fri Jun 08 07:52:13 EDT 2007 | zanolli
We are looking at a specialized method of direct soldering ceramic circuit modules (maybe 40mm square) to a mother board with solder joints on only 2 of the 4 sides. These modules would be oriented horizontally, or mezzanine like, to the mother board
Electronics Forum | Fri Jun 08 15:37:41 EDT 2007 | ck_the_flip
Jim: I have limited knowledge, but here's what I know: 1. Yes, it's a standard process. In today's SMTNet, it's rarely mentioned, and few people reply to postings. 2. Nope. It's a "specialty" piece of equipment for most CEM's. Depending on you
Electronics Forum | Tue Apr 02 11:21:46 EST 2002 | BTaylor
davef I assume this question is for my reply and me. We used a dexter\hysol underfill and a Camalot 5700 to dispense.Single line technique next to a small IC with 14 bumps around the perimeter.The conformal coating was applied with a small brush aro
Electronics Forum | Sat Mar 30 17:27:45 EST 2002 | davef
You should not have glue "all over the place." Tou should not have glue on solderable surfaces. It sounds like you are stringing glue from one dispense location to the next. Search the fine SMTnet Archives [there might be something there]. Read a
Electronics Forum | Tue Jul 17 12:23:11 EDT 2007 | ck_the_flip
Hey DBack! The 80's called. They want their pump dispensing for SMT adhesive process back! That, and the feathered hair, parachute pants and Members' Only jacket... Just kidding.. Hey, why not screen print glue? Currently, it's a very mature
Electronics Forum | Tue Jul 17 11:44:03 EDT 2007 | jaimebc
We are looking into switching SMT adhesives, because of the lead time with our current supplier. So if you are using one that you would recommend, please let me know. We are dispensing with a glue machine ( Universal GDM ) Thanks in advance!
