Patent ID: 7477517
Filing Date: 2009-01-13
Classification: H01L,Y10T

Abstract:
1. An integrated active heat spreader and exchanger for a microprocessor chip comprising: a housing; a conductive heat spreader disposed in the housing, the heat spreader including a spreader plate in thermal contact with a microprocessor chip to be cooled and a plurality of spreader fins extending from the spreader plate; a membrane connecting the heat spreader and the housing, the membrane sealing the interface between the heat spreader and the housing; a top plate disposed in the housing, the top plate including a plurality of top plate fins extending from the top plate toward the plurality of spreader fins; a pump disposed in the housing between the top plate fins and the spreader fins, the pump urging fluid across the spreader fins where the fluid conducts heat from the spreader fins, the fluid continuing across the top plate fins, the top plate fins conducting heat from the fluid; and a heat sink in thermal contact with the top plate, the heat sink including a plurality of heat sink fins extending from a heat sink plate, the heat sink plate conducting heat from the top plate into the heat sink fins, the heat dissipated from the heat sink fins by convection.