Patent ID: 7825482

Claim:
A semiconductor device comprising: a semiconductor substrate; an isolation region formed in the semiconductor substrate; a first active region surrounded by the isolation region and formed of the semiconductor substrate; a second active region surrounded by the isolation region and formed of the semiconductor substrate; a first gate insulating film formed on the first active region; a second gate insulating film formed on the second active region; a first gate electrode of a first conductivity type made of silicon and formed on the first gate insulating film; a second gate electrode of a second conductivity type made of silicon and formed on the second gate insulating film; an insulating film formed on an upper surface of a part of the isolation region located between the first active region and the second active region, and sandwiched between the first gate electrode and the second gate electrode so as to have a recess-like cross section in the gate width direction and being made of a single film; a silicon region surrounded by the insulating film and formed in a recess; and a metal silicide film formed on the respective tops of the first gate electrode, the second gate electrode, the silicon region, and the insulating film, wherein the first gate electrode is electrically connected to the second gate electrode through the metal silicide film, and the first and second gate electrodes are separated by the insulating film and the silicon region.