Patent ID: 7995344

Claim:
A heat sink apparatus for use with one to many electronic components mounted on a printed wiring board and including a variety of geometry in three dimensions, comprising: a heat sink having a substantially flat surface area; and a single piece of foil having a multiplicity of dome constructions formed in the foil; said multiplicity of dome constructions being affixed to said surface area of said heat sink around a periphery of each dome construction of said multiplicity of dome constructions and adapted for proximal location facing an electronic component side of a printed wiring board, with said each dome construction being a deformable, convex shell construction shaped to mechanically bias a distal portion of said dome construction away from said heat sink, to provide contact between said distal portion and a top surface of an electronic component mounted opposite said heat sink to conduct heat there from, and to enable deformation of said dome construction as a result of contact with a top surface of an electronic component; said multiplicity of dome constructions being deformable to tolerate differences in spacing between said heat sink and different electronic components having a variety of geometry in three dimensions and still provide contact with top surfaces of the different electronic components when said multiplicity of dome constructions are mounted opposite the different electronic components; and said multiplicity of dome constructions having non-plastic deformation to allow relative movement between said heat sink and the electronic components while maintaining a heat conduction path there between.