Patent ID: 6798663
Filing Date: 2004-09-28
Classification: H01L

Abstract:
A system for heat sink hold-down, comprising:a heat source; and a heat sink hold-down assembly comprising: a bolster plate operable to rigidly support said heat source; a heat sink comprising: a heat sink base operable to press said heat source against said bolster plate and to transfer heat from said heat source; and a longitudinal post having a first end and a second end opposite from said first end, said longitudinal post attached at said first end to said heat sink base substantially orthogonally near the center of said heat sink base, said post operable to transfer a longitudinal compressive force substantially symmetrically to said heat sink base; a lever spring contacting near its midpoint said second end of said post opposite from said first end, said lever spring operable to apply a compressive force to said second end of said post in response to a bending moment; and a cap rigidly coupled to said bolster plate and compressively coupled to said lever spring near the two ends of said lever spring, said cap operable to apply a bending moment to said lever spring.