Electricity: conductors and insulators – Feedthrough or bushing – Compression
Patent
1975-06-02
1977-02-15
James, Andrew J.
Electricity: conductors and insulators
Feedthrough or bushing
Compression
357 79, 357 81, 174 52P, 174 5063, 361433, H01L 2302, H01L 2312, H01L 2342, H01L 2344
Patent
active
040084868
ABSTRACT:
A compression-assembled device has similar pole pieces which are electrically insulated from one another by an outer insulation ring and, in operation, press against the opposing surfaces of a semiconductor device. The base of the insulation ring is secured to one of the pole pieces, and its other end, and the other pole piece have thin flexible flanges extending from their peripheries and the flanges are connected to one another to mechanically secure the assembly together. One of the flanges has several upturned lips on its circumference which are used to receive and center the other flange. A flexible insulation ring surrounds a semiconductor wafer and locates it between the pole pieces. The ring with the wafer is pressed into the outer insulation ring and thus prevents the wafer from moving within the pole pieces when the pole pieces are not under compression forces.
REFERENCES:
patent: 2960639 (1960-11-01), Tipple
patent: 3058209 (1962-10-01), Nijhuis et al.
patent: 3337678 (1967-08-01), Stelmak
patent: 3443168 (1969-05-01), Camp et al.
patent: 3499095 (1970-03-01), Haus
patent: 3654529 (1972-04-01), Lord
patent: 3721867 (1973-03-01), Schierz
patent: 3831067 (1974-08-01), Wislocky et al.
patent: 3918147 (1975-11-01), Herczog
International Rectifier Corporation
James Andrew J.
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