Integrated circuit including backside wiring and method of designing the integrated circuit

An integrated circuit comprising:

• a source region;
• a drain region spaced apart from the source region in a first direction;
• a gate line between the source region and the drain region, the gate line extending in a second direction that intersects to the first direction;
• a frontside wiring layer above the gate line;
• and
• a backside wiring layer below the gate line,
• wherein the frontside wiring layer comprises a first frontside wiring pattern extending in the first direction, connected to the source region, and configured to transmit a supply voltage to the source region, and
• wherein the backside wiring layer comprises a first backside wiring pattern connected to the source region and configured to transmit the supply voltage to the source region.

An integrated circuit, comprising:

• a standard cell, wherein the standard cell comprises:
• a first frontside wiring layer comprising a power rail and an internal rail, wherein each of the power rail and the internal rail extends in a first direction;
• a gate line below the first frontside wiring layer and extending in a second direction that is perpendicular to the first direction;
• a second frontside wiring layer above the first frontside wiring layer and connected to the internal rail;
• and
• a backside wiring layer below the gate line and connected to the power rail.