Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1993-04-02
1994-01-04
Thompson, Gregory D.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
165 803, 165185, 174 163, 257722, 361690, 361709, 361702, H05K 720
Patent
active
052765849
ABSTRACT:
Electronic unit of printed circuit board with electronic components on one side and its other side in heat conducting contact with a heat sink enables the electronic components to be sealed from ambient atmosphere and thus unpackaged chips may be used. The units are mountable in a support frame with air cooling passages of the heat sinks extending vertically for convected cooling air. In each unit, a resistor network may extend into a cavity formed in a heat exchange rib and an electronic chip, perhaps unpackaged in the sealed environment, may be in heat conductive relationship with the heat sink.
REFERENCES:
patent: 3011105 (1961-11-01), Blanc
patent: 3299946 (1967-01-01), Recklinghausen
patent: 3305004 (1967-02-01), Barlowe
patent: 4918571 (1990-04-01), Grabbe
Collins Hugh M.
Drayton John B.
Hayes Hasler R.
Katchmar Roman
Moss John S.
Austin R. J.
Northern Telecom Limited
Thompson Gregory D.
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