Patent ID: 6770942
Filing Date: 2004-08-03
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor substrate; an element separating insulating film provided in a surface region of the semiconductor substrate, the element separating insulating film separating an element region; a gate electrode provided on the element region of the semiconductor substrate with a gate insulating film interposed therebetween; a pair of source/drain regions formed in a surface region of the semiconductor substrate in a manner to sandwich a region below the gate electrode; a silicide film provided on the surfaces of the source/drain regions such that the silicide film extends onto the element separating insulating film, the silicide film having an upper surface positioned above the surface of the semiconductor substrate; an interlayer insulating film provided on the element separating insulating film and the silicide film; a contact hole extending through the interlayer insulating film to reach the silicide film, having one end and the other end positioned on the silicide film and on the element separating insulating film, respectively, and having a trench portion formed in the bottom portion of the contact hole and in the upper portion of the element separating insulating film, the trench portion having one end being in contact with an edge of the silicide film; and a wiring layer provided in the contact hole.