Electronic unit
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United States of America Patent
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Jan 4, 1994
Issued Date -
N/A
app pub date -
Apr 2, 1993
filing date -
Oct 31, 1991
priority date (Note) -
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status (Latency Note)
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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.
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