Patent ID: 7982299

Claim:
A power semiconductor module comprising: a semiconductor device which includes: a power semiconductor element; a first electrode plate provided on one surface of the power semiconductor element; a second electrode plate provided on the other surface of the power semiconductor element; and an insulating substrate provided between the power semiconductor element and the first electrode plate; a first bus bar which is a conductive member soldered to a main surface of the first electrode plate included in the semiconductor device, through a first solder member; a second bus bar which is a conductive member soldered to a main surface of the second electrode plate included in the semiconductor device, through a second solder member; and soldering control elements which are provided on each of a main surface of the first bus bar to which the first electrode plate is soldered and a main surface of the second bus bar to which the second electrode plate is soldered, and which control a solder joint thickness of each of the first solder member and the second solder member; the soldering control elements comprising a first protrusion part provided on one end terminal of the main surface of the first bus bar to which the first electrode plate is soldered and on which one end of the first electrode plate is placed, a length from an edge of the main surface to the first protrusion part is the same as a length from one edge of the first electrode plate to the other edge thereof, the soldering control elements comprising a second protrusion part provided on one end terminal of the main surface of the second bus bar to which the second electrode plate is soldered and on which one end of the second electrode plate is placed, and a length from an edge of the main surface to the second protrusion part is the same as a length from one edge of the second electrode plate to the other edge thereof.