Spring retainer for encapsulated semiconductor device

Details Spring retainer for encapsulated semiconductor device Spring retainer for encapsulated semiconductor device

1986-09-26

1987-12-01

Pellinen, A. D.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

24295, 24458, 165 803, 174 16HS, 357 81, H05K 720

Patent

active

047108525

ABSTRACT:
A spring steel bayonet type retainer for securing encapsulated semiconductor devices to circuit boards either directly or through an intermediate heat dissipator. The retainer comprises a spring steel body bent approximately centrally and at approximately right angles. At least one portion is slotted to define outboard spring fingers and inboard bayonet type arms which extend through aligned holes in the device and the circuit board. The noncoplanar portions provide clamping forces on the main body of the encapsulated semiconductor device and may be provided with laterally outwardly extending ears to fit closely within the confines of a heat dissipator device to prevent relative rotation therebetween.

REFERENCES:
patent: 2917286 (1957-12-01), Deakin
patent: 3154281 (1964-10-01), Frank
patent: 3259813 (1962-04-01), Lindstrant
patent: 3777052 (1973-12-01), Fegen
patent: 3849838 (1974-11-01), Hehl
patent: 3909883 (1975-10-01), Fegen
patent: B13909883 (1982-10-01), Fegen
patent: 4110549 (1978-08-01), Goetzke et al.
patent: 4509839 (1985-04-01), Lavochkin
"Surface-Mounted Power Transistor and Heatsink", IBM Tech. Disclosure Bulletin, vol. 28, No. 12, 5/86, pp. 5502-5503.

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