Patent ID: 7973340

Claim:
A semiconductor integrated circuit comprising: cells which are formed on a semiconductor substrate and which realize a predetermined electric function; a first cell power wiring line which extends in a first direction on the semiconductor substrate and which supplies a power to the cells, the first cell power wiring line being arranged in a first plane; a second cell power wiring line which extends in the first direction on the semiconductor substrate and which supplies the power to the cells, the second cell power wiring line being arranged in the first plane; a first upper layer power wiring line which is formed over the first cell power wiring line and the second cell power wiring line and which extends in a second direction crossing the first direction at right angles and to which the power is supplied from the outside, the first upper layer power wiring line being arranged in a second plane parallel to the first plane, the first plane and the second plane extending in the first direction and the second direction; a first contact member arranged at a first position and formed between the first cell power wiring line and the first upper layer power wiring line; a second contact member formed between the second cell power wiring line and the first upper layer power wiring line, the second contact member being arranged at a second position which is shifted a first distance from the first position along a straight line which extends through the first cell power wiring line in the first direction and which is shifted a second distance from the first position along a straight line which passes through the first contact member in the second direction; and a third cell power wiring line which extends in the first direction on the semiconductor substrate and which supplies the power to the cells, the third cell power wiring line being arranged in the first plane and between the first cell power wiring line and second cell power wiring line, wherein a distance in the second direction between the first cell power wiring line and the third cell power wiring line is substantially equal to a distance in the second direction between the second cell power wiring line and the third cell power wiring line.