Patent ID: 8409939

Claim:
A method for fabricating a semiconductor device, the method comprising: forming a fin-type semiconductor region on a substrate; and introducing an n-type impurity into at least a side of the fin-type semiconductor region by a plasma doping process, thereby forming an n-type impurity region in the side of the fin-type semiconductor region, wherein in the introducing the n-type impurity, when a source power in the plasma doping process is denoted by a character Y [W], a supply of a gas containing the n-type impurity per unit time and per unit volume is set greater than or equal to 5.1×10 −8 /((1.7 2.51 /2 4.51 )×(Y/500)) [mol/(min·L·sec)], and a supply of a diluent gas per unit time and per unit volume is set greater than or equal to 1.7×10 −4 /((20 2.51 /2 4.51 )×(Y/500)) [mol/(min·L·sec)].