Heat sink mounting

Details Heat sink mounting Heat sink mounting

1983-01-12

1985-06-04

Goldberg, Howard N.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

165 80B, H05K 720, F28F 700

Patent

active

045218277

ABSTRACT:
Disclosed are methods and apparatus for attaching a heat sink mounted semiconductor case to a circuit board employing a stud with a flange near one end. The longer shank is threaded and at least the shorter shank or head stud is tin-plated. The stud may be swaged into a mounting hole in the heat sink and the heat sink and semiconductor case pre-assembled. The pre-assembled unit may then be mounted and soldered to the circuit board along with other circuit components.

REFERENCES:
patent: 1988926 (1935-01-01), Thomson
patent: 3200296 (1965-08-01), Bruestle
patent: 3492908 (1970-02-01), Thurston
patent: 3611046 (1971-10-01), Covert
patent: 3836825 (1974-09-01), Hall et al.
patent: 4007477 (1977-02-01), Goodman
PEM.RTM. Penn Engr. & Mfg. Co., Bulletin K480, copyright 1962, '70, '71, '74, '76 and '80.

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