Patent ID: 7309908

Claim:
A standard cell, wherein a wiring layer of predetermined level can be used as at least one of a wiring line within the standard cell and a wiring line for interconnecting standard cells, comprising: a predetermined node, formed by performing wiring within the standard cell with the wiring layer of the predetermined level, and which is susceptible to a potential variation of another wiring line; and a shield wiring line whose potential does not change simultaneously with the predetermined node, a shield region whose potential does not change simultaneously with the predetermined node, or a wiring inhibition region in which arrangement of the wiring line for interconnecting the standard cells is inhibited; the shield wiring line, the shield region, or the wiring inhibition region being formed of the wiring layer of the predetermined level and inhibiting arrangement of the wiring line for interconnecting the standard cells as is made of the wiring layer of the predetermined level, in the vicinity of the predetermined node, wherein the predetermined node and the shield wiring line, the shield region, or the wiring inhibition region are formed within the standard cell.