Heat sink clip and assembly and method of manufacture

Details Heat sink clip and assembly and method of manufacture Heat sink clip and assembly and method of manufacture

1988-07-25

1990-02-06

Envall, Jr., Roy N.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361388, H01L 2336

Patent

active

048992550

ABSTRACT:
A through slot is provided in the central apex portion of a U-shaped heat sink clip and results in an advantageous assembly and method of manufacture. A heat sink and power transistor are clamped together by arm portions of the clip. The slot is used either to permit the passage of an insertion tool for holding the clip open during attachment of the clip to the heat sink and power transistor device or to permit passage of external leads of the power transistor. In either case, the resultant heat sink assembly does not require opening of the clip by providing access to ends or outer projections of the clip arm portions by mounting tools or by providing additional exterior clip projections. Thus a much more compact and readily manufacturable heat sink assembly is provided.

REFERENCES:
patent: 2541828 (1951-02-01), Peck
patent: 2808576 (1957-10-01), Brown
patent: 2888228 (1959-05-01), Jarvis
patent: 3208511 (1965-09-01), McAdam
patent: 3519889 (1970-07-01), Monaco
patent: 3572428 (1971-03-01), Monaco
patent: 4008487 (1977-02-01), Vogt
patent: 4203488 (1980-05-01), Johnson et al.
patent: 4215361 (1980-07-01), McCarthy
patent: 4563725 (1986-01-01), Kirby
patent: 4648008 (1987-03-01), Neyroud et al.

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