Patent ID: 7786248
Filing Date: 2010-08-31
Classification: C08K,C08L,C09J,H01L

Abstract:
1. An underfill composition comprising a) at least one compound having the structure: wherein: R is selected from the group consisting of a substituted or an unsubstituted cyclopentyl, cyclohexyl, norbornyl, tetracyclododecyl, and dicyclopentadienyl; Q is selected from the group consisting of a substituted or an unsubstituted aliphatic, a substituted or an unsubstituted aryl, and a substituted or an unsubstituted heteroaryl; each E is independently selected from the group consisting of an acrylate, a methacrylate, a ring-opening moiety and a ring-forming polymerizable moiety; and n is an integer having the value between 1 and about 10; b) an acidic fluxing agent; and c) a filler.