Patent ID: 8390131

Claim:
A semiconductor device, comprising: a semiconductor body including a surface and an opposing surface, said semiconductor body comprising a first power electrode on said surface of said semiconductor body, and a second power electrode on said opposing surface of said semiconductor body; a first barrier layer over a surface of said first power electrode; a second barrier layer over a surface of said second power electrode; a first metallic body having a resistivity less than the resistivity of said first electrode formed over said first barrier layer, wherein said first barrier prevents the contamination of said first electrode by said first metallic body; and a second metallic body having a resistivity less than the resistivity of said second electrode formed over said second barrier layer, wherein said second barrier prevents the contamination of said second electrode by said second metallic body; wherein said first metallic body has an increased thickness providing a substantially reduced resistivity and said first barrier layer is substantially thinner than said first metallic body; wherein said first metallic body and said second metallic body are configured for flip-chip-type mounting and said first barrier layer and said second barrier layer comprise the same material.