Patent ID: 8847374

Claim:
A power semiconductor module comprising: a power semiconductor element containing a plurality of control electrodes on one main surface; a first conductor plate bonded by way of a first solder material to other main surface of the power semiconductor element; and a second conductor plate bonded by way of a second solder material to the other main surface of the power semiconductor element; wherein a first protrusion section protruding from a base section of the first conductor plate and including a first protrusion surface formed over an upper surface of the first conductor plate, a second protrusion section including a second protrusion surface facing towards one of the main surfaces of the power semiconductor element, formed over the first protrusion surface of the first conductor plate, a first solder material interposed between the power semiconductor element and the first conductor plate, avoids the plural control electrodes, and a perpendicular projection from one of the main surfaces of the power semiconductor element, the second protrusion section being formed so that a projecting section on a specified side of the second protrusion surface overlaps a projecting section on a step section formed between the first protrusion section and the base section of the first conductor plate, and the plural control electrodes on the power semiconductor element being formed along the specified side of the second protrusion surface.