Patent ID: 9716055
Date: 2017-07-25
CPC Classifications: B32B,H01L,Y10T

Claim:
1. A method of making an assembly of a thermal interface material sheet and a thermal interface material with an integrated thermally conductive release layer, the method comprising the steps of: modifying a surface of a thermally conductive release layer by applying an organosilane to the surface of the thermally conductive release layer, wherein the organosilane reacts with hydroxyl groups on the surface of the thermally conductive release layer to form a modified release layer having an organosilane-coated surface, wherein the thermally conductive release layer is aluminum foil, and wherein the organosilane is a vinyl-terminated trialkoxysilane having a terminal vinyl group; interposing a thermal interface material formulation containing an unsaturated monomer between the organosilane-coated surface of the modified release layer and a thermal interface material (TIM) sheet, wherein the unsaturated monomer is methyl acrylate, and wherein the TIM sheet is selected from a group consisting of a graphite/resin high thermal conductive sheet and a boron nitride (BN)/resin high thermally conductive sheet; curing the thermal interface material formulation interposed between the organosilane-coated surface of the modified release layer and the TIM sheet, wherein the unsaturated monomer of the thermal interface material formulation reacts with the organosilane-coated surface of the modified release layer by reacting with the terminal vinyl group of the vinyl-terminated trialkoxysilane through radical polymerization, and wherein the cured thermal interface material formulation reacted with the organosilane-coated surface of the modified release layer provides the thermal interface material with the integrated thermally conductive release layer.