Patent ID: 7808083
Filing Date: 2010-10-05
Classification: C08G,H01L

Abstract:
1. A semiconductor device having a wafer level package structure comprising a resin composition containing a cyclic olefin resin (A) having an epoxy group and a photoacid generator (B), wherein the resin layer has an elastic modulus after curing of 0.1 GPa or more but no more than 2.0 GPa; wherein the cyclic olefin resin (A) having an epoxy group contains repeating units represented by the formulae (4), (5) and (6): wherein n is an integer of 0 to 5; R 1 to R 10 are each independently selected from a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a functional group containing an ester group, a functional group containing a ketone group, and a functional group containing an ether group; and R 1 to R 10 may be different in a repetition of a monomer.