Patent ID: 8588916

Claim:
A hermetic feedthrough for an implantable medical device, comprising: an insulator comprising a first material and a through-hole; a conduit integrated with the insulator and comprising a sintered conductor filling the through-hole, wherein the conduit extends through the insulator and is configured to conduct electricity through the insulator, and wherein the sintered conductor of the conduit comprises a second material that is electrically conductive; and a pad coupled to an exterior surface of the insulator and configured to receive a lead coupled thereto, wherein the pad is electrically conductive and coupled to the conduit; wherein the insulator, the conduit, and the pad comprise a co-fired bond therebetween, the co-fired bond hermetically seals the conduit with the insulator, and the hermetic seal is biostable such that immersion durability is maintained after attachment of the lead to the pad; wherein the pad comprises a first layer and a second layer overlaying at least a portion of the first layer, and the pad has a thickness of at least 50 μm; and wherein the hermetic feedthrough is configured to be coupled to a wall of the implantable medical device such that the lead may be coupled to the pad external to the medical device.