Patent ID: 6461891
Filing Date: 2002-10-08
Classification: H01L

Abstract:
A method of constructing an electronic assembly, the method comprising:locating a thermally conductive member, a thermally conductive indium-containing substance, and semiconductor package, including a package substrate and a semiconductor chip, having an integrated circuit formed thereon, mounted to the package substrate, in a selected orientation relative to one another so that at least a portion of the thermally conductive member is located on a side of the semiconductor chip opposing the package substrate and the substance is located between the semiconductor chip and the portion of the thermally conductive member; heating the substance while the thermally conductive member, the substance and the semiconductor package are in the selected orientation relative to one another, the substance being heated to a temperature above its melting point so that the substance melts; and cooling the substance to below its melting point so that the substance solidifies, whereafter the substance provides a thermally conductive thermal couple between the semiconductor chip and the portion of the thermally conductive member.