Patent ID: 7606033
Filing Date: 2009-10-20
Classification: H01L,Y10T

Abstract:
1. A heat transfer apparatus comprising: a printed circuit board having an electronic component thereon; a load frame mounted to the printed circuit board, the load frame having an open region into which the electronic component extends exposing a surface of the electronic component; a heat sink disposed on the load frame and having a surface in thermal contact with the surface of the electronic component through a thermally conductive material; an actuation mechanism to apply a preload force to the heat sink toward the electronic component to compress the thermally conductive material and achieve a desired thermal interface gap between the surface of the heat sink and the surface of the electronic component; and at least one non-influencing screw disposed within a bore of the heat sink and threaded into the load frame to secure the heat sink to the load frame and maintain the desired thermal interface gap, wherein the at least one non-influencing screw, and each urging an element transversely against a sidewall of the bore of the heat sink.