Patent ID: 7944698
Filing Date: 2011-05-17
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, and the load frame having a plurality of load springs mounted thereon; a heat sink assembly disposed on the load frame and having a main body with a surface in thermal contact with the surface of the electronic component through a thermally conductive material, the heat sink assembly having a plurality of load arms, each load arm having a hook for engaging one of the load springs; a load plate extending between the load arms, the load plate having an actuation element operative to displace the main body relative to the load plate and thereby resiliently deform the load springs and produce a load force that compresses the thermally conductive material to achieve a desired thermal interface gap between the surface of the main body and the surface of the electronic component; wherein each load spring extends in a direction generally perpendicular to the displacement of the main body relative to the load plate.