Patent ID: 8258585

Claim:
A semiconductor device, comprising: a fin-type semiconductor region formed on a substrate; a gate insulating film formed so as to cover an upper surface and both side surfaces of a predetermined portion of the fin-type semiconductor region; a gate electrode formed on the gate insulating film; an impurity region formed on both sides of the gate electrode in the fin-type semiconductor region; and an impurity blocking portion for blocking the introduction of impurities, the impurity blocking portion being provided adjacent both sides of the gate electrode over an upper surface of the fin-type semiconductor region, wherein: the impurity blocking portion is formed as part of the gate electrode, the impurity blocking portion being a protruding portion of the gate electrode, an insulating sidewall spacer is formed on a side surface of the gate electrode, and another impurity region is formed in the fin-type semiconductor region on both sides of the insulating sidewall spacer when viewed from the gate electrode.