Hermetic electrical feedthrough assembly

Details Hermetic electrical feedthrough assembly Hermetic electrical feedthrough assembly

1984-07-30

1987-07-07

Askin, Laramie E.

Electricity: conductors and insulators

Insulators

Through wall or plate

228122, H01B 1730, C03C 2704

Patent

active

046788689

ABSTRACT:
A hermetic feedthrough consisting of a niobium electrical lead-in wire surrounded by an alumina insulator which is carried by a niobium ferrule, the feedthrough being particularly adapted for being welded to the titanium container of an implantable medical device. The niobium and alumina parts are joined together by means of a pure gold braze, the surfaces of the alumina being first metallized with a layer of niobium, titanium or niobium/titanium and an optional overlying layer of gold.

REFERENCES:
patent: 3273979 (1966-09-01), Budnick
patent: 3370874 (1968-02-01), Scherer et al.
patent: 3873944 (1975-03-01), Vaguine et al.
patent: 3906311 (1975-09-01), Shoot et al.
patent: 3920888 (1975-11-01), Barr
patent: 4180700 (1979-12-01), Kraska et al.

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