Patent ID: 9646903
Date: 2017-05-09
CPC Classifications: C08G,C08L,H01L

Claim:
1. A non-conductive thermal interface material for coupling between a substrate and a chip comprising: a formulation resulting from a cross-linking reaction of a dendrimer or a hyperbranched polymer with a thermoset polyimide; or a polyimide resulting from a cross-linking reaction of bis-norbornene monomers, the cross-linking reaction involving ring opening metathesis polymerization (ROMP) and catalyzed by a transition metal, wherein each of the bis-norbornene monomers comprises a rigid aromatic moiety and two norbornene rings directly connected to the rigid aromatic moiety, the rigid aromatic moiety comprising a bisimide, wherein the two imide groups of the bisimide are attached to a same single ring.