Patent ID: 7760503

Claim:
A semiconductor module comprising: a base plate; a plurality of substrates placed on one surface of the base plate, with each substrate of the plurality of substrates including a switching element, a diode element, and a connection terminal area; and a parallel flow forming device that forms parallel coolant flow paths that are provided so as to be in contact with the other surface of the base plate, wherein: the coolant flow paths are formed such that coolant flows in a coolant flow direction, the switching element and the diode element are arranged in line in a perpendicular direction with respect to the coolant flow direction, the switching element and the connection terminal area are arranged in positions differing in the coolant flow direction in each of the substrates, a pair of substrates of the plurality of substrates is arranged in series in the coolant flow direction, the switching element of one of the substrates of the pair of substrates is arranged on one side in the perpendicular direction, and the diode element of the other substrate of the pair of substrates is arranged on the one side in the perpendicular direction, the connection terminal area of at least one substrate of the pair of substrates is arranged closer to a side that is between the pair of substrates with respect to the switching element of the at least one substrate of the pair of substrates, and the switching elements of the pair of substrates are arranged at different positions in the perpendicular direction.