Patent ID: 8048714

Claim:
A method of manufacturing a semiconductor device mountable to a substrate, the method comprising: arranging a semiconductor die for electrical communication with a first attachment area of an electrically conductive attachment region, said electrically conductive attachment region having a first attachment area and a second attachment area, on opposite sides; forming a recess disposed in a housing enclosing at least in part the semiconductor die, the electrically conductive attachment region, the recess disposed on a same side as the second attachment area of the electrically conductive attachment region, after forming said recess in said housing, applying a dielectric, thermally conductive interlayer material to a top surface of said recess, wherein said dielectric, thermally conductive interlayer material extends the entire length of an upper portion of the recess, and wherein said dielectric, thermally conductive interlayer material has a high dielectric constant and a high thermal conductivity; securing a heat sink to the dielectric, thermally conductive interlayer material, wherein the heat sink extends the entire length of an upper portion of the recess and directly contacts only the dielectric, thermally conductive interlayer and the housing, wherein a portion of the housing lies between said dielectric, thermally conductive interlayer and the second attachment surface of said electrically conductive attachment region.