Electronics Forum | Thu Dec 01 00:34:15 EST 2005 | pyramus
Guy's another question, how about any recommendation what type of adhesive to use as underfill for BGA during lead free process? Currently, we are only using Loctite 3609 & 3515 as adhesive we use 3515 as BGA underfill during normal leaded process s
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 | Mon Feb 06 22:45:59 EST 2006 | pyramus
Hi everybody! Just want to ask some recommendation if which epoxy is advisable to be used for bonding and underfill for BGA's at Lead Free Process. Currently, we only used Loctite 3515 for high temp curing for leaded process. How about for Lead fre
Electronics Forum | Tue Feb 07 21:34:52 EST 2006 | davef
We agree that curing Loctite 3515 at lead-free temperatures is not a good idea. For lead-free, we know of some no-flow underfills, but no capillary flow underfills. Contact your underfill supplier for recommendations. When you have this conversati
Electronics Forum | Tue Feb 23 11:18:29 EST 2010 | vleasher
That company doesn't appear to sell Loctite and the adhesive they do sell doesn't compare to the Loctite 3508,3515... I wonder if I buy a case if anyone would buy the extras if I put them on ebay!!! lol
Electronics Forum | Mon Feb 01 08:23:56 EST 2010 | vleasher
Is anyone aware of distributors that sell single syringes of the 3515 and 3508 Loctite? Our yearly requirements are far less than a case and would not be very economical to go that route.
Electronics Forum | Thu Jan 15 12:32:08 EST 2009 | vleasher
After doing some more research it looks like Loctite made a material called Cornerbond 3515 that seems as if it has the characteristics we are looking for such as curing after the solder is liquidous. But it appears that it isn't manufactured anymore
Electronics Forum | Tue Feb 23 13:25:52 EST 2010 | vleasher
Yep.. Contact East and Jensen Tools are now Stanley Supply & Services. They have the 3515 but you must buy in multiples of 10 and no luck with Technitool. I have exhausted most of the distributer I know. Thats why i'm here!!
Electronics Forum | Mon Mar 29 14:29:50 EST 2004 | davef
Few people underfill PBGA. People underfill CCGA, uBGA, and FC. Consider a reworkable underfill on those devices that you expect to rework. Reworkable underfill candidates * Thermoset: ME526 (Red) * Loctite: 3567 (Cream) * Dexter: FP 4511 (Black)
Electronics Forum | Thu Oct 01 18:06:27 EDT 2020 | proceng1
We are looking to underfill a small QFN and have never done this before. I have read the data sheet, but I have specific questions. Does anyone have experience using Loctite Eccobond 1216M?
