Patent ID: 6223813
Filing Date: 2001-05-01
Classification: H01L,Y10T

Abstract:
A heat sink comprising:a base strip having long edges and short edges, said base strip being made of a thermally conductive material and having a plurality of surface area enhancing projections extending outwardly from at least one of said long edges;a spacer strip disposed adjacent to at least a portion of said base strip from which said projections extend;said base strip and said spacer strip being coiled together so that said projections extend in substantially the same direction while at the same time said projections are maintained in a spaced-apart relationship by said spacer strip; andmeans for maintaining said coiled base and spacer strips in a fixed position relative to one another, whereby the coiled heat sink possesses open channels, at an end thereof opposite to said base strip, for introduction of cooling fluid into said heat sink in a direction at least initially substantially parallel to said projections.