Hermetic enclosure for electronic component

Details Hermetic enclosure for electronic component Hermetic enclosure for electronic component

1975-04-18

1977-12-27

Truhe, J. V.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

361433, H01G 910

Patent

active

040656365

ABSTRACT:
A hermetic enclosure for an electrical component, particularly for a tantalum capacitor, and a method of forming it is disclosed. A silver container is provided having an open end at which an outwardly protruding flange is formed. A quantity of sealing glass is sealed to a lead and formed into a bead about the lead intermediate the ends thereof. A metallic collar having an outwardly protruding flange is disposed about the bead. This assembly and a metallic band, having a temperature coefficient of expansion greater than the glass bead, is heated and the metallic band is disposed about the collar so as to place the collar and glass bead in compression upon cooling thereby effecting a compression seal between the collar and the glass bead. A hermetic seal is then effected between the outwardly protruding flange of the container and the outwardly protruding flange of the collar.

REFERENCES:
patent: 3264708 (1966-08-01), Diggens
patent: 3273028 (1966-09-01), Sparkes
patent: 3548265 (1970-12-01), Buice et al.
patent: 3912985 (1975-10-01), Sawchuck

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