Patent ID: 6920673

Claim:
A process for brazing a filter capacitor in a feedthrough device, comprising the acts of: a) providing a ferrule defining a capacitor receiving recess; b) disposing a capacitor in the capacitor receiving recess; c) providing the capacitor with a passageway, the capacitor having a metallized external surface and a metallized internal surface about the capacitor passageway; d) positioning a lead passing through the capacitor passageway; e) positioning an annular preform of a capacitor braze material comprising a silver-copper alloy contacting the ferrule and the metallized external surface of the capacitor; f) wrapping a thread of the capacitor braze material about the lead and contacting the metallized internal surface of the capacitor; and g) heating the capacitor braze material, thereby brazing the preform connecting the capacitor's metallized external surface to the ferrule forming a capacitor-ferrule braze joint and connecting the capacitor's metallized internal surface to the lead forming a capacitor-lead braze joint.