Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – With provision for cooling the housing or its contents
Patent
1993-06-18
1995-01-31
Crane, Sara W.
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
With provision for cooling the housing or its contents
257706, 361707, 361714, H01L 2302
Patent
active
053861442
ABSTRACT:
A heat sink (44-48) is detachably mechanically connected to an electronic component package (10) by means of a pair of mutually spaced and parallel spring rods (16, 18) that are fixed to the electronic component package and span a recess (14) formed in a surface of the package. The heat sink is formed with a projecting latching member (50) having a short shank (52) on the end of which is formed a laterally outwardly extending flange (60). The flange has shoulders (62) that slope outwardly and away from the heat sink body and distal ends on which are formed cam surfaces (66) that slope inwardly away from the heat sink body. The latching member (50) of the heat sink is pressed into the electronic component package recess between the resilient rods (16, 18) to force the rods apart and to pass the outer most ends (64) of the flange this causes the rods to contact the flange shoulders (62) in a slightly outwardly bowed position of the rods. The resilience of the rods accordingly tends to exert a constant force on the latching member flange tending to pull the heat sink against the electronic component package. Thus, the heat sink may be snapped into a latching engagement with the component package and the two parts may be readily snapped apart or disengaged.
REFERENCES:
patent: 3305004 (1967-02-01), Barlowe
patent: 3377524 (1968-04-01), Bock et al.
patent: 4235285 (1980-11-01), Johnson et al.
patent: 4481525 (1984-11-01), Calabro et al.
patent: 4607685 (1986-08-01), Mitchell, Jr.
patent: 4764847 (1988-08-01), Eisenblatter et al.
Alagaratnam Maniam
Dalao Teresa
Low Qwai H.
Variot Patrick
Arroyo T. M.
Crane Sara W.
LSI Logic Corporation
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