Patent ID: 6286212
Filing Date: 2001-09-11
Classification: C09K,F28F,H01L,Y10T

Abstract:
A method of establishing a thermal joint for conduct of heat between opposed surfaces of an electrical component and a heat sink, the electrical component having a normal operating temperature comprising the steps of:choosing a compound having a melt temperature above a normal operating temperature of the electrical component, said compound having an adhesion characteristic below said normal operating temperature sufficient to adhere to a heat sink and the component;inserting the compound between the component and the heat sink;initially heating the compound to at least said compound melt temperature, the compound at said melt temperature deformable for flowable movement into air spaces between opposed surfaces of the component and associated heat sink to establish a thermal joint therebetween;allowing the compound to return to a solid state, a subsequent operation of the component heating the component to only said normal operating temperature due to said thermal joint established between the component and heat sink, said compound in said joint remaining below said melt temperature in said solid state whereby to retain said established thermal joint.