Patent ID: 7034064

Claim:
A method of attaching a silicon die to a substrate comprising disposing an adhesive between the die and the substrate and curing the adhesive with heat, in which the adhesive is a curable composition comprising (a) a compound containing an oxetane functionality and an electron donor or electron acceptor functionality, represented by the formula in which R 1 is a methyl or ethyl group, R 2 is a divalent hydrocarbon, Q is a divalent hydrocarbon, X and Y are indelendently a direct bond, or an ether, ester, or carbamate functionality, provided that X and Y are not both direct bonds, and E is a styrenic, cinnamyl, vinyl ether, maleimide, acrylate, fumarate, or maleate group; (b) a curing agent, and (c) a filler.