Provided is a semiconductor device including a substrate with a plurality of logic cells, transistors provided in the plurality of logic cells, contact plugs connected to electrodes of the transistors, first via plugs in contact with top surfaces of the contact plugs, and first wires in contact with top surfaces of the first via plugs. The first wires may include a common conductive line connected to the plurality of logic cells through the contact plugs, and all of the first wires may be shaped like a straight line extending parallel to a specific direction.