Patent ID: 8461623

Claim:
A power semiconductor module comprising: a first insulation substrate; a load side conductor pattern formed on a surface of said first insulation substrate; a plurality of first semiconductor elements provided on said first insulation substrate, electrically connected in parallel to each other between a positive side power supply and said load side conductor pattern, wherein at least one of said plurality of first semiconductor elements is a switching element; a plurality of second semiconductor elements provided on said first insulation substrate, electrically connected in parallel to each other between a negative side power supply and said load side conductor pattern, wherein at least one of said plurality of second semiconductor elements is being a switching element; a plurality of first conductor patterns formed on the surface of said first insulation substrate, said plurality of first conductor patterns corresponding to said plurality of first semiconductor elements, respectively, and constituting a plurality of first current paths, respectively, each said first current path running from said positive side power supply to said load side conductor pattern through a corresponding first conductor pattern and a corresponding first semiconductor element in turn; and a plurality of second conductor patterns formed on the surface of said first insulation substrate, said plurality of second conductor patterns corresponding to said plurality of second semiconductor elements, respectively, and constituting a plurality of second current paths, respectively, each said second current path running from said load side conductor pattern to said negative side power supply through a corresponding second semiconductor element and a corresponding second conductor pattern in turn, wherein said plurality of first current paths are aligned alternately along a periphery of said load side conductor pattern on the surface of said first insulation substrate.