Patent ID: 8536000

Claim:
A method for producing a semiconductor device, comprising the steps of: (a) forming a first fin-shaped semiconductor region on a substrate; (b) forming a second fin-shaped semiconductor region on the substrate; (c) implanting the first fin-shaped semiconductor region with a first-conductivity-type impurity by a plasma doping method; and (d) implanting the second fin-shaped semiconductor region with a second-conductivity-type impurity by a plasma doping method, wherein the first-conductivity-type impurity is a p-type impurity or an n-type impurity, the second-conductivity-type impurity is an impurity of a conductivity type different from that of the first-conductivity-type impurity, in a case where a mass of the second-conductivity-type impurity is greater than that of the first-conductivity-type impurity, a pressure during plasma doping in the step (d) is set to be less than or equal to that in the step (c), and in a case where the mass of the first-conductivity-type impurity is greater than that of the second-conductivity-type impurity, the pressure during plasma doping in the step (c) is set to be less than or equal to that in the step (d).