Process for sealing VHF component in case

Details Process for sealing VHF component in case Process for sealing VHF component in case

1981-02-26

1983-09-20

Husar, Francis S.

Metal working

Method of mechanical manufacture

Electrical device making

29589, 29832, 29827, H05K 330

Patent

active

044047452

ABSTRACT:
A process of construction of a device for hermetic sealing in a case comprising a sealed ceramic crossover formed by a metal conductor, without having recourse to the technology of cast alumina, which is delicate and costly, and without using sealing glass which is undesirable for very high frequencies. The process comprises the manufacture of molded parts by pressing green alumina to which binders have been added, so as to obtain a case bottom and a frame, which is metalized only after previous firing at 1000.degree. C., using the molybdenum-manganese deposit by silk-screen printing, then which is sintered at the normal temperature of alumina at 1500.degree. C.

REFERENCES:
patent: 3404213 (1968-10-01), Brookover
patent: 3676569 (1972-07-01), Thompson
patent: 3683241 (1972-08-01), Duncan
patent: 3769560 (1973-10-01), Miyake et al.
patent: 3872583 (1975-03-01), Beall et al.
patent: 4137628 (1979-02-01), Suzuki
patent: 4297722 (1981-10-01), Nagahama et al.

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