Patent ID: 8610263

Claim:
A semiconductor device module comprising: a plurality of circuit units, each circuit unit of the plurality of circuit units having a circuit board having a semiconductor element mounted thereon, a main electrode terminal which is electrically connected to a main electrode of said semiconductor element, and a first heatsink having said circuit board mounted thereon; a second heatsink having said plurality of circuit units mounted thereon; and a connecting member that connects said main electrode terminals of said plurality of circuit units to each other, wherein said first heatsink is mounted on said second heatsink such that a main surface thereof extends perpendicularly to a main surface of said second heatsink, said main electrode terminal extends in a direction parallel to said main surface of said first heatsink, and has one end thereof connected to said circuit board and an other end thereof protruding from an upper side of said first heatsink, said main electrode terminal is configured as a plate-like member, and said other end has a concavo-convex shape in which a central portion thereof is recessed and both sides thereof protrude, said plurality of circuit units are mounted on said second heatsink such that said first heatsinks thereof are in parallel with each other, and said connecting member and said main electrode terminal are bonded to each other by a welded part.