Patent ID: 8473048

Claim:
A hermetic package for an implantable device, comprising: an electrically non-conductive substrate having a substantially planar inside surface; a plurality of electrically conductive vias through said electrically non-conductive substrate, patterned thin film metallization suitable to withstand braze temperatures on the electrically non-conductive substrate, the electrically non-conductive substrate patterned thin film metallization and the electrically conductive vias forming a base; a flip-chip circuit attached directly to said base using conductive bumps and electrically connected to at least one of said plurality of electrically conductive vias, the flip-chip circuit not suitable to withstand braze temperatures wherein the flip-chip circuit is smaller than the electrically non-conductive substrate defining a wire bonding region between the flip-chip circuit and the edge of the electrically non-conductive substrate; a wire bonded hybrid stack circuit, including thin film metallization, wire bonded directly to said base in the wire bonding region; a ring bonded to the substantially planner inside surface of said base; and a cover bonded to said ring and a lip to engage said cover to said ring, said cover, said lip, said ring and said base forming a hermetic package; wherein said wire bonded hybrid stack circuit is mounted on said flip chip circuit.