Patent ID: 7915125
Filing Date: 2011-03-29
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device comprising: forming a first gate insulating film and a second gate insulating film in an active region of a semiconductor substrate; introducing an impurity of a first conductivity type into a first site where a first body region is to be formed, the first site being disposed under the first gate insulating film in the active region; forming a gate electrode on each of the first gate insulating film and the second gate insulating film; and introducing an impurity of the first conductivity type into the first site and a second site where a second body region is to be formed, the second site being disposed under the second gate insulating film in the active region, to form the first body region and the second body region, respectively, and wherein the impurity is introduced into the first site and a channel region of a transistor of a second conductivity type contemporaneously.