Patent ID: 7812691
Filing Date: 2010-10-12
Classification: H03H

Abstract:
1. A feedthrough assembly, which comprises: a) an insulator of electrically non-conductive material having a height defined by an insulator sidewall extending to a first insulator end and a second insulator end, wherein the insulator has at least one lead wire bore extending from the first end to the second end thereof; b) a lead wire received in the lead wire bore, the lead wire having a length extending to opposed first and second ends disposed spaced from the respective first and second insulator ends; c) a ferrule of an electrically conductive material and comprising a ferrule opening defined by a surrounding sidewall extending to a first ferrule end and a second ferrule end, wherein the insulator is supported in the ferrule opening; d) a first braze material hermetically sealing the lead wire to the insulator and a second braze material hermetically sealing the insulator to the ferrule; and e) wherein the lead wire comprises a core of a first metal supporting a functionally graded coating comprising at least one second metal other than the first metal.