Sealed electric passages

Details Sealed electric passages Sealed electric passages

1977-01-24

1982-01-12

Lewis, Michael L.

Metal treatment

Compositions

Heat treating

427 96, 428472, 428583, 428629, B32B 1504

Patent

active

043103634

ABSTRACT:
A process for obtaining sealed electric passages through an insulating body nvolves subjecting a titanium oxide ceramic forming a portion of the insulating body to a reduction process at selected places where the passages are desired. The reduction process involves baking the titanium oxide ceramic in a reducing atmosphere. According to some embodiments of the invention, more of the ceramic portion than is necessary is first subjected to the reduction process and those surface portions that are not intended to be conductive are treated to have metallic traces removed therefrom.

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patent: 3948706 (1976-04-01), Schmeckenbecher
patent: 3965552 (1976-06-01), Rutt

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