Patent ID: 7407860
Filing Date: 2008-08-05
Classification: H01L

Abstract:
1. A semiconductor device fabricating method for fabricating a semiconductor device including a p-transistor formed in a first region of a semiconductor substrate, and an n-transistor formed in a second region of the semiconductor substrate, comprising the steps of: forming a first gate layer structure including a gate insulation film and a gate electrode in the first region and a second gate layer structure including a gate insulation film and a gate electrode in the second region; forming a first sidewall insulation film on both side surfaces of the first gate layer structure; performing a first surface processing in which CF performing a second surface processing in which O forming a trench in the semiconductor substrate outer of the first sidewall insulation film with the surface of the semiconductor substrate in the first region with the first gate layer structure and the first sidewall insulation film in the first region and the second gate layer structure and the oxide film in the second region as a mask; forming a compressive stress applying portion in the trench; removing the first sidewall insulation film in the first region; forming a first junction region in the first region and the second region with the first gate layer structure and the second gate layer structure as a mask; forming a second sidewall insulation film on both side surfaces of the first gate layer structure and a third sidewall insulation film on both side surfaces of the second gate layer structure; and forming a second junction region in the first region and the second region with the first gate layer structure and the second sidewall insulation film and the second gate layer structure and the third sidewall insulation film as a mask.