Glass to metal seal

Details Glass to metal seal Glass to metal seal

1990-02-12

1991-05-07

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

174 5063, 403 30, 428681, 428682, 428935, H01J 500, B32B 1500

Patent

active

050136151

ABSTRACT:
A glass to metal seal for mounting an electrical conductor in a metal wall, such as a microelectronic circuit case, and a method of mounting. The metal lead which serves as the electrical conductor is coated with a layer of iron by electroplating and the iron coated lead is mounted in the opening of the metal wall with a glass insulating sleeve. In an alternative embodiment, a barrier layer of electroplated and sintered nickel is provided on the metal lead under the iron layer. A similar layer of iron may be provided on the case wall at the lead opening, and a barrier layer may be provided on the case wall under the iron layer.

REFERENCES:
patent: 2334020 (1943-11-01), Miller, et al.
patent: 4915719 (1990-04-01), Saffari

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