Patent ID: 8421235

Claim:
A semiconductor device comprising: a unit stack body including a plurality of units stacked on one another, each unit including: a semiconductor chip having a first surface and a second surface opposite to each other and formed with a semiconductor power element; a first heat spreader connected to the first surface of the semiconductor chip; a second heat spreader connected to the second surface of the semiconductor chip; a terminal section electrically connected to the semiconductor power element; a resin mold section of a plate shape covering the semiconductor chip, the first and second heat spreaders and the terminal section such that a part of the terminal section is exposed, surfaces of the first and second heat spreaders on the side opposite to the semiconductor chip are exposed, the resin mold section forming a part of a coolant channel through which coolant flows, and first and second lid sections holding therebetween the unit stack body, wherein the terminal section of each unit includes a power terminal for supplying a current to the semiconductor power element, the power terminal being constituted of a lead part connected to the first heat spreader, and a connection part connected to the lead part and penetrating through the first and second surfaces, the connection parts of each adjacent two of the units stacked on one another being electrically connected with each other at the first and second surfaces thereof.