Patent ID: 8058554

Claim:
A semiconductor power conversion apparatus comprising: a semiconductor device for performing power conversion; and a bus bar for electrically connecting an electrode of said semiconductor device and a circuit component external to the semiconductor device with each other, wherein said bus bar is configured to include a connection section with said electrode and a non-connection section with said electrode that are integrally shaped and to have a thermal stress relief mechanism for relieving thermal stress acting on a connection part formed of a part of said connection section and electrically connected with said electrode without through bonding wire in a state of being opposed to said electrode, said connection part is formed to have a thickness smaller than that of said non-connection section thereby forming said thermal stress relief mechanism, said non-connection section is arranged common to a plurality of said semiconductor devices to extend in a first direction, and said connection section is provided corresponding to each said semiconductor device in such a shape that branches from said non-connection section and extends in a second direction crossing said first direction, and said connection section has at least a portion in thickness smaller than said non-connection section.