Electricity: conductors and insulators – Insulators – Through wall or plate
Patent
1994-07-20
2000-12-05
Kincaid, Kristine
Electricity: conductors and insulators
Insulators
Through wall or plate
174 5061, 174152GM, 29852, H01B 1726
Patent
active
06156978&
ABSTRACT:
An electrical feedthrough (34) is prepared by furnishing an aluminum oxide feedthrough plate (70) and at least one feedthrough pin (80) having a length greater than the thickness of the feedthrough plate (70). A pin bore (78) is formed through the feedthrough plate (70) for each feedthrough pin (80). Each pin bore (78) has a pin bore (78) size greater than the feedthrough pin (80) size, preferably by an amount no greater than that required to permit the penetration of a brazing metal (88) between the pin bore (78) and the feedthrough pin (80). Each feedthrough pin (80) is inserted into its respective pin bore (78) and brazed into place utilizing a metallic active braze alloy (88) and no glassy seal. The feedthrough plate (70) may be simultaneously brazed to a package structure (22) using active or nonactive brazing.
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William D. Callister, Jr. Materials Science and Engineering, p. 250, Jan. 1985.
Evans Tom K.
Hughes Gary B.
Neumann Karl H.
Peck Leonard E.
Romano Timothy S.
Kincaid Kristine
Lenzen, Jr. Glenn H.
Raytheon Company
Schubert William C.
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