Patent ID: 7352585

Claim:
A method for conducting heat from a flip chip, the method comprising the steps of: securing a substrate to a thermally conductive case, the substrate having a plurality of thermally conductive vias passing therethrough, the plurality of thermally conductive vias providing a thermal path from one side of the substrate to another side of the substrate; mounting a flip chip to the substrate, the flip chip having a first surface, solder bumps on the first surface, and a second surface oppositely disposed from the first surface, the flip chip being mounted to the substrate such that the solder bumps are registered with the plurality of thermally conductive vias; and attaching a heat sink in heat transfer relationship to the second surface of the flip chip, wherein the heat sink has a cavity formed in a region adjacent to the flip chip and the heat sink forming a cover for the thermally conductive case, the thermally conductive case providing a first thermal conductive path from the flip chip via the plurality of thermally conductive vias and the heat sink providing a second thermal conductive path from the flip chip via the cavity.