Patent ID: 7535062
Filing Date: 2009-05-19
Classification: H01L

Abstract:
1. A semiconductor device including a semiconductor supporting substrate, an insulation film layer formed on said semiconductor supporting substrate and a transistor formed on a semiconductor layer formed on said insulation film layer, comprising: an isolation oxide film formed in said semiconductor layer; an interlayer insulation film formed on said semiconductor layer and said isolation oxide film; a wiring layer formed on said interlayer insulation film; and a conductive layer connecting said semiconductor supporting substrate and said wiring layer and fixing a potential of said semiconductor supporting substrate, wherein said conductive layer and said wiring layer are formed around a periphery of a region in which said transistor is to be formed and a silicide layer formed on a bottom of a first opening extending through said isolation oxide film, said semiconductor layer and said insulation film layer to reach said semiconductor supporting substrate; a conductive layer filling a second opening extending through a first interlayer insulation film formed on said semiconductor layer and said isolation oxide film to reach said silicide layer; and a wiring layer connected to said conductive layer, said conductive layer filling said second opening and said semiconductor layer are connected.