Patent ID: 8354726
Filing Date: 2013-01-15
Classification: H01L

Abstract:
1. A semiconductor device comprising: a first active region surrounded with an isolation region of a semiconductor substrate; a first gate electrode formed over the first active region and having a protrusion protruding on the isolation region; a first side-wall insulating film formed on the side surface of the first gate electrode; an auxiliary pattern formed over the semiconductor substrate to be spaced apart in the gate width direction from the protrusion of the first gate electrode; a second side-wall insulating film formed on the side surface of the auxiliary pattern; and a stress-containing insulating film containing internal stress and formed to cover the first gate electrode, the first side-wall insulating film, the auxiliary pattern, and the second side-wall insulating film, wherein the distance between the first gate electrode and the auxiliary pattern is smaller than the sum total of: the sum of the thicknesses of the first and second side-wall insulating films; and the double of the thickness of the stress-containing insulating film, the first side-wall insulating film includes a first sidewall formed on the side surface of the first gate electrode, and having an L-shaped cross section, and a second sidewall formed on the first sidewall, the first sidewall is made of an oxide film, and the second sidewall is made of a nitride film.