High power dissipating packages with matched heatspreader heatsi

Details High power dissipating packages with matched heatspreader heatsi High power dissipating packages with matched heatspreader heatsi

1994-10-04

1995-10-31

Thompson, Gregory D.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

165 803, 165185, 257707, 257713, 257722, 361690, 361717, 361718, H05K 720

Patent

active

054635292

ABSTRACT:
A removable heatsink assembly comprised of a heatsink unit and a heatspreader is provided. The heatsink unit has at least one fin and a coupling collar for radiating heat away from a packaged electronic device. The heatspreader includes a platform attached to an inner collar in thermal contact with the packaged electronic device. The platform has one or more tabs suitable for mating with one or more flanges located on the coupling collar of the heatsink unit. Coupling grooves within the flanges engage the platform of the heatspreader when the flanges are mated with the heatspreader tabs and the heatsink is turned. The heatsink can therefore be quickly and conveniently attached to or removed from the heatspreader. The present invention thus permits a wide variety of different heatsinks to be interchangeably used with a single heatspreader attached to an electronic device package.

REFERENCES:
patent: 3836825 (1974-09-01), Hall et al.
patent: 4345267 (1982-08-01), Corman et al.
patent: 4621304 (1986-11-01), Oogaki et al.
patent: 4626960 (1986-12-01), Hamano et al.
patent: 4712159 (1987-12-01), Clemens
patent: 4716494 (1987-12-01), Bright et al.
patent: 4729426 (1988-03-01), Hinshaw
patent: 4897764 (1990-01-01), Bruchmann et al.
patent: 4978638 (1990-12-01), Buller et al.
patent: 5227663 (1993-07-01), Patil et al.

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