Electronic assembly

Details Electronic assembly Electronic assembly

1998-10-23

2000-10-03

Thompson, Gregory D.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

165 802, 165 803, 174 163, 257719, 257727, 361710, 361719, 361769, 361809, 361820, H05H 720

Patent

active

061281905

ABSTRACT:
An aluminum heat sink bridge (1), mounted overlying a transistor unit (5) on a circuit board (12), has affixed to its underside, along two lateral edges, a pair of resilient plastic or rubber members (4), which, when the bridge is screwed down into place, exert continuous vertical pressure on the collector tab (8) and the base tab (7) keeping them in electrical contact with their underlying electrical contact points on the circuit board (12) while permitting horizontal movement of the tabs due to variations in temperature. One embodiment of the invention has resilient members extending the entire length of the bridge to exert vertical pressure on grounding tabs (9) extending laterally from the ends of the transistor unit.

REFERENCES:
patent: 5065280 (1991-11-01), Karnezos et al.
patent: 5176524 (1993-01-01), Mizuno et al.
patent: 5392193 (1995-02-01), Robertson, Jr. et al.
patent: 5426405 (1995-06-01), Miller et al.
patent: 5530291 (1996-06-01), Chan et al.
patent: 5825089 (1998-10-01), Valenti et al.

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