Patent ID: 7838936

Claim:
A semiconductor device, comprising: a substrate; a semiconductor device portion formed on the substrate in a protruding state and having a semiconductor element; a stepped portion formed along a surface of the semiconductor device portion and a surface of the substrate; an insulating reentrant-angle compensating film formed on a surface of the stepped portion, for compensating for at least a part of a reentrant-angle shape of the stepped portion; a wiring layer formed along a surface of the reentrant-angle compensating film and connected to the semiconductor device portion, said wiring layer covering the reentrant-angle portion of the stepped portion; and wherein the reentrant-angle portion of the stepped portion is located at an elevation below that of a source region and a gate electrode of the semiconductor device, a switching element is formed in the substrate so that at least a part of the switching element, including the switching element's gate electrode, is not covered with the reentrant-angle compensating film, and the switching element, the wiring layer, the reentrant-angle compensating film, and the semiconductor device portion are covered with an interlayer insulating film.