Patent ID: 6421241
Filing Date: 2002-07-16
Classification: H01L

Abstract:
A heat exchanger for cooling an electronic device comprising:a member being elongated in its length relative to its width and being comprised of a thermally conducting material for transferring heat, said member having at least one planar mounting surface having a dimension across the length and width of the member adapted to carry a heat generating electronic device in a heat transfer relationship to said surface, said member having at least one cooling interface along the length thereof, said cooling interface being adapted to contact a fluid coolant in a heat transfer relationship so that heat being transferred to said member may be transferred through the cooling interface to the fluid coolant; and said member also having a number of through holes extending across the width thereof generally normal to the length and thickness of said member and not in fluid communication with said at least one cooling interface so that the composite coefficient of thermal expansion of said member is modified such that when an electronic device is in a heat transfer relationship with said surface the bond therebetween shall be maintained during heat generating operation of such an electronic device.