Apparatus and method for improved thermal coupling of a semicond

Details Apparatus and method for improved thermal coupling of a semicond Apparatus and method for improved thermal coupling of a semicond

1990-10-22

1993-08-17

DeBoer, Todd E.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

174 524, 174 163, 361761, H05K 720

Patent

active

052374858

ABSTRACT:
A heat sink and method for heat sinking a package containing electronic components is described. The heat sinking is accomplished by use of a cooling plate located beneath a circuit board. The package having leads extending from more than one side of the package is positioned on the cooling plate so that the leads from the sides of the package can be electrically coupled to conductors on the circuit board wherein the circuit board is disposed about at least two and preferably three sides of the package. The package is secured to the cooling plate by a spring clip. The spring clip permits flexible positioning of the package relative to the cooling plate including positioning the package in close proximity of the edge of the cooling plate. Thermal conduction between the package and the cooling plate can be enhanced by the presence of a compressible thermally-conducting material. The circuit board preferably has an opening therein so as to permit the board to be in close proximity to the three sides of the package for increased connectibility.

REFERENCES:
patent: 3325882 (1967-06-01), Chiou et al.
patent: 3663921 (1972-05-01), Richard
patent: 4270138 (1981-05-01), Desmond
patent: 4481525 (1984-11-01), Calabro et al.
patent: 4563725 (1986-01-01), Kirby

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