Patent ID: 8564120

Claim:
A semiconductor device, comprising: a substrate comprising a front side and a back side; one or more transistor elements formed in and above a semiconductor layer that is positioned above said front side; a metallization system formed above said semiconductor layer; a first heat dissipation element formed adjacent to said one or more transistor elements and extending into said substrate, said first heat dissipation element being electrically isolated from said one or more transistor elements, said semiconductor layer, and said metallization system and comprising a fill material having a thermal conductivity that is higher than a thermal conductivity of said semiconductor layer; and a second heat dissipation element formed adjacent to said one or more transistor elements, wherein said second heat dissipation element is electrically isolated from said semiconductor layer and from said first heat dissipation element within said substrate and wherein said second heat dissipation element is in electrical contact with said first heat dissipation element through an electrical interface located in said semiconductor layer.