Patent ID: 6984286

Claim:
A method for forming an electronic structure, comprising the steps of: providing a substrate, a chip on a surface of the substrate and coupled to the substrate, and a thermally conductive member; forming a fillet of at least one adhesive material on the chip and around a periphery of the chip and placing the thermally conductive member on a portion of the fillet and over a top surface of the chip, wherein the at least one adhesive material is uncured, wherein the fillet couples the thermally conductive member to the substrate, wherein an outer surface of the fillet meets the surface of the substrate at a contact curve and makes an average contact angle θ 1AVE with the surface of the substrate upon initial formation of the fillet during the forming step, and wherein the at least one adhesive material comprises a thixotrope; applying a force to the thermally conductive member in a direction toward the top surface of the chip resulting in a redistribution of the at least one adhesive material; and after the step of applying the force to the thermally conductive member, curing the at least one adhesive material wherein θ 2AVE represents an average contact angle that the fillet makes with the surface of the substrate after the curing step, wherein θ 2AVE <θ 1AVE , and wherein the reduction from θ 1AVE to θ 2AVE occurs between the initial formation of the fillet during the forming step and completion of the curing step such that the reduction from θ 1AVE to θ 2AVE occurs substantially during a contact angle reduction step selected from the group consisting of the forming step, the applying step, and the curing step.