Apparatus for providing a hermetically sealed environment

Details Apparatus for providing a hermetically sealed environment Apparatus for providing a hermetically sealed environment

1995-09-11

1998-04-07

Kincaid, Kristine L.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

174 5052, 220 38, H01J 500

Patent

active

057366756

ABSTRACT:
A device and a method of manufacture for the device, in which the device is a metallic canister having a detachable lid that is fastened onto the canister having an indium-tin intermetallic gasket disposed between the lid and the edge of the canister adjacent to the lid. Heating the entire apparatus at a predetermined temperature less than the melting point of indium-tin intermetallic for a specified time period such that the indium and a tin coating on the lid and canister surface interact to form an intermetallic compound that provides a seal which will satisfy operating requirements for being, designated a hermetic seal. The condition of the seal improves over time, due to the continued interaction between the tin and indium alloy.

REFERENCES:
patent: 3644878 (1972-02-01), Toedtman
patent: 3736104 (1973-05-01), Churchill et al.
patent: 3754674 (1973-08-01), Wesoloski
patent: 3904812 (1975-09-01), Daffron
patent: 4897095 (1990-01-01), Bedi et al.
patent: 4994631 (1991-02-01), Williams, Jr.
patent: 5280412 (1994-01-01), Podell et al.

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