Patent ID: 6138748
Filing Date: 2000-10-31
Classification: F28F,H01L

Abstract:
An apparatus for thermally coupling a heat source to a heat sink, comprising:a first substrate including a first surface having a plurality of first channels formed therein to form a plurality of first fins and a first base to thermally engage the heat source; anda second substrate including a second surface having a plurality of second channels formed therein to form a plurality of second fins and a second base to thermally engage the heat sink, the first and second fins providing a thermally conductive path from the heat source to the heat sink when interleaved with each other;wherein said first and second fins are cylindrical, and are concentric when interleaved with each other, and also wherein said substrates include cut-out portions for permitting limited relative rotational movement between said first and second fins when said first and second fins are interleaved with each other, within a relative rotational movement range that is limited by said cut-out portions.