Patent ID: 8537551

Claim:
A semiconductor device comprising: a plurality of semiconductor packages stacked on one another, each semiconductor package including: a semiconductor element; a metal body thermally connected to the semiconductor element to transfer heat generated in the semiconductor element; a case section shaped to form a coolant channel through which coolant flows and accommodating therein the semiconductor element and the metal body; and a main current electrode terminal disposed in the case section and electrically connected to the semiconductor element, the main current electrode terminal being exposed outside the case section to be electrically connected to an external power supply, wherein, when a direction in which the semiconductor packages are stacked is referred to as a stack direction, the main current electrode terminal extends in the stack direction, and embedded in the case section at a surface portion thereof facing an external surface of the case section, both end surface portions of the main current electrode terminal in the stack direction respectively reaching end surface portions of the case section in the stack direction so that the main current electrode terminals of each adjacent two of the semiconductor packages are in contact with each other when the semiconductor packages are stacked on one another in the stack direction.