Patent ID: 7855579

Claim:
A semiconductor integrated circuit having a first ring power supply, a second ring power supply, a first power supply source wire, a second power supply source wire, a first power supply source IO terminal, and a second power supply source IO terminal, wherein the first ring power supply and the second ring power supply belong to a plurality of wire layers, the first ring power supply is connected with the first power supply source wire in at least one of the plurality of wire layers, the second ring power supply is connected with the second power supply source wire in at least one of the plurality of wire layers, the first power supply source IO terminal is connected with the first power supply source wire, the second power supply source IO terminal is connected with the second power supply source wire, the first power supply source IO terminal and the second power supply source IO terminal in a pair are disposed outside the first ring power supply and the second ring power supply in a pair when viewed in plan, the wire layers of the first power supply source wire and the second power supply source wire are the same wire layer, the first ring power supply has a plurality of corners at each of which a wire extending in a first direction intersects a wire extending in a second direction perpendicular to the first direction when viewed in plan, the first ring power supply is connected with the first power supply source wire at a plurality of connecting points, and at least one of the connecting points are at one of the plurality of corners.