Patent ID: 9070783
Filing Date: 2015-06-30
Classification: H01L

Abstract:
1. A semiconductor device comprising, in cross section: a semiconductor substrate; a gate insulating film on the semiconductor substrate, the gate insulating film having a trench therein but not extending therethrough; a gate electrode within the trench with a portion of the gate insulating film between the gate electrode and the semiconductor substrate; a side wall insulating film at opposite sides of the gate electrode, the side wall insulating film adjacent to the gate insulating layer; a stress applying film at the opposite sides of the gate electrode, over at least a portion of the semiconductor substrate and adjacent the side wall insulating film; silicide regions at a top surface of the semiconductor substrate at the opposite sides of the gate electrode, each silicide region not extending under the side wall insulting film; source/drain regions in the semiconductor substrate at the opposite sides of the gate electrode, each source drain region not extending under the side wall insulting film; and source/drain extension regions extending from respective ends of the silicide regions to beneath the gate insulating film, wherein,