Patent ID: 7432556
Filing Date: 2008-10-07
Classification: H01L

Abstract:
1. A semiconductor device comprising a semiconductor substrate, a gate insulating film provided on the semiconductor substrate, a gate electrode provided on the gate insulating film, an insulating layer covering the gate insulating film and the gate electrode, and conductors provided in the insulating layer, wherein the conductors have a gate electrode connection plug, conductor for a gate electrode, a dummy plug, a first dummy conductor, and a second dummy conductor, the gate electrode connection plug pierces through the insulating layer and is connected electrically to the gate electrode, the conductor for a gate electrode is connected to the gate electrode connection plug, the dummy plug pierces through the insulating layer and is connected electrically to an active region formed in the semiconductor substrate, the first dummy conductor is connected to the dummy plug, and the second dummy conductor is insulated by the insulating layer at its entire circumference, the first dummy conductor is positioned adjacent to the conductor for a gate electrode, and the second dummy conductor is constituted by a plurality of conductors, and the plurality of conductors constituting the second dummy conductor are arranged so as to surround the first dummy conductor on a side that is not adjacent to the conductor for a gate electrode of the dummy conductor.