Patent ID: 7741716
Filing Date: 2010-06-22
Classification: H01L

Abstract:
1. A bond pad structure formed from a dielectric stack on an integrated circuit, comprising: bond pad metal in the shape of a bond pad located on top of the dielectric stack; bond pad support structures in a plurality of metal interconnect layers in the dielectric stack under the bond pad metal, wherein the bond pad support structures are under the bond pad metal, wherein in each of the plurality of metal interconnect layers, the bond pad support structures in that metal interconnect layer are configured to form dielectric gaps in that metal interconnect layer; and under-pad circuitry located under the bond pad metal, wherein the under-pad circuitry includes interconnects and wherein some of the interconnects pass from under the bond pad metal to an area not under the bond pad metal through the dielectric gaps to connect the under-pad circuitry to circuitry on the integrated circuit that is not under the bond pad metal.