Patent ID: 9748363
Date: 2017-08-29
CPC Classifications: H01L

Claim:
1. A method for manufacturing a semiconductor device, comprising: forming a fin structure having a top surface and side surfaces, a mask layer being disposed over the top surface; forming a doping support layer to cover part of the fin structure; introducing a first impurity into a first region of the fin structure covered by the doping support layer, by implanting the first impurity into the doping support layer so that the implanted first impurity is introduced into the first region of the fin structure through the side surfaces; after introducing the first impurity, reducing a thickness of the doping support layer; and introducing a second impurity into a second region of the fin structure covered by the doping support layer, whose thickness has been reduced, by implanting the second impurity into the doping support layer, whose thickness has been reduced so that the implanted second impurity is introduced into the second region of the fin structure through the side surfaces.