3 protect korea underfill results

Electronics Forum: protect korea underfill (Page 1 of 1)

BGA underfill necessary with conformal coat?

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

BGA Underfill Rework

Electronics Forum | Fri Jun 09 01:27:07 EDT 2006 | Scott

Thanks for the info. I've been able to arrange some training with the local branch of Samsung, who are getting engineers from Korea to come over to teach us. It sounds like an exercise in wasted time and manpower to me, but that's what you get I supp

Use lead-free alloy wire during rework for Leaded Process

Electronics Forum | Wed Nov 01 07:32:33 EST 2006 | davef

What you have run up against is the unfortunate consequence of the transition period from Sn-Pb to Pb-free. In the past 2-3 years there have been several studies highlighting the differences in reliability between mixed metal systems, Sn/Pb, and SAC