Patent ID: 6396700
Filing Date: 2002-05-28
Classification: H01L

Abstract:
A thermal dissipation assembly for an electronic device, said thermal dissipation assembly comprising:a thermal spreader having a surface which is to thermally couple to a surface of a heat generating component of an electronic device, said heat generating component having a non-uniform thermal distribution across said surface thereof between at least one first region of said surface and at least one second region of said surface, wherein said at least one first region has higher heat flux than said at least one second region; and a thermal interface attached to said surface of said thermal spreader for facilitating heat transfer between said heat generating component and said thermal spreader when said thermal spreader is disposed with said thermal interface in contact with said surface of said heat generating component, wherein said thermal interface covers only a portion of said surface of said thermal spreader to selectively thermally couple said thermal spreader to said surface of said heat generating component; and wherein said thermal interface comprises a high unit conductance thermal interface comprising multiple high unit conductance thermal contacts aligned to contact said surface of said heat generating component in said at least one first region of higher heat flux and in only a portion of said at least one second region, said thermal interface having at least one thermal contact of said multiple thermal contacts which contacts only said portion of said at least one second region, wherein said at least one thermal contact is sized and positioned to minimize a temperature difference across said surface of said heat generating component when said thermal dissipation assembly is placed in contact therewith, and wherein said thermal interface establishes a partial air gap between said thermal spreader and said surface of said heat generating component when said thermal dissipation assembly is placed in contact therewith.