Patent ID: 8410533

Claim:
A semiconductor device comprising: a semiconductor substrate having at least one surface provided with a semiconductor element, wherein the semiconductor substrate includes a region of a first conductivity type, the region being formed in a surface layer portion of the semiconductor substrate; a first diffusion region of a second conductivity type, the first diffusion region having a first impurity concentration and being formed in the surface layer portion, and a pn junction being formed between the first diffusion region and the region of the first conductivity type; a first metal silicide film formed on a portion of the first diffusion region, coupled to a conductive plug extending above the first metal silicide film; a shielding layer of the first conductivity type, the shielding layer being formed so as to be separated from the first metal silicide film and so as to surround the first metal silicide film, and a pn junction being formed between the shielding layer and the first diffusion region; and an insulating pattern formed along an outer circumference of the first metal silicide film and on the upper side of the first metal silicide film and provided apart from the conductive plug.