It is an object of the present invention to improve a heat radiation property of a metal wire on a semiconductor chip in a power module. A power module includes: a plurality of metal wires connected to a surface of at least one semiconductor chip; and a thermal conductive sheet having contact with the metal wire. The metal wire includes: at least one first metal wire connecting a surface of the semiconductor chip and a circuit pattern and at least one second metal wire connecting two points on the surface of the semiconductor chip and having the same potential as the first metal wire. The thermal conductive sheet includes a graphite sheet, and a sheet surface of the thermal conductive sheet has contact with the at least one first metal wire and the at least one second metal wire.