Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1994-03-18
1994-12-20
Picard, Leo P.
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
174152GM, 257698, 29842, 29862, H01L 2302, H01B 1726, H01R 4304
Patent
active
053747860
ABSTRACT:
A package for electrical circuitry and method of making same wherein the package is provided with apertured ceramic side walls. Ceramic layers, which have been previously co-fired together and have an aperture therethrough for receiving a copper-based lead, are positioned in each of the apertures along with a copper-based lead. A Kovar braze washer, which has an aperture therein having approximately the same dimensions as the outside dimensions of the lead is positioned over the lead and against the ceramic layers and brazed to these layers and the lead to provide an hermetic seal. A good electrical conductor is then brazed to the portion of the lead extending external to the package.
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Donaldson Richard L.
Grossman Rene E.
Ledynh Bot
Picard Leo P.
Texas Instruments Incorporated
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