Patent ID: 7514307

Claim:
A method of manufacturing a semiconductor apparatus, comprising: forming a low-density body region of a second conductivity type in a surface of a semiconductor substrate of a first conductivity type; forming a source region of the first conductivity type in the body region; forming a gate electrode adjacent to the body region via a gate insulating film; forming an interlayer dielectric over the body region and the gate electrode; forming a mask pattern over the interlayer dielectric; forming an opening in the interlayer dielectric using the mask pattern as a mask; implanting ions to a region of the body region using the mask pattern as a mask to form a high-density body contact region of the second conductivity type; and removing the interlayer dielectric to extend the opening of the interlayer dielectric using the mask pattern as a mask to form a source contact, wherein an entire surface of the source region and an entire top surface of the body contact region that is formed by said implantating are leveled with a substantially coplanar surface of the semiconductor substrate.