Patent ID: 8288215
Filing Date: 2012-10-16
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising the steps of: forming an embrittlement region in a single crystal semiconductor substrate; attaching and fixing the single crystal semiconductor substrate to a substrate; generating a crack in the embrittlement region by heating the single crystal semiconductor substrate, thereby separating from a part of the single crystal semiconductor substrate to form a semiconductor layer, wherein the semiconductor layer is attached to the substrate; forming a first island-shaped semiconductor layer and a second island-shaped semiconductor layer from the semiconductor layer; adding an impurity element imparting n-type conductivity into part of the first island-shaped semiconductor layer to form a first source region and a first drain region; and adding an impurity element imparting p-type conductivity into part of the second island-shaped semiconductor layer to form a second source region and a second drain region, wherein a thickness of the first source region is thinner than a thickness of the second source region, and wherein a thickness of the first drain region is thinner than a thickness of the second drain region.