Patent ID: 8213179

Claim:
A semiconductor element cooling structure, comprising: a plurality of semiconductor elements; an electrode portion having a plurality cooling medium channels therein and electrically connected to said plurality of semiconductor elements; and a protruding portion protruded from a wall surface of a cooling medium channel to the inside of said cooling medium channel, for directing flow of cooling medium flowing through said cooling medium channel to a semiconductor element, wherein said electrode portion includes a first electrode having said semiconductor elements mounted on each of opposite surfaces, and a plurality of second electrodes holding therebetween said first electrode and said semiconductor elements mounted directly on each of the opposite surfaces of said first electrode; said first electrode has a cooling medium channel therein and each of said plurality of second electrodes has a cooling medium channel therein; and said protruded portion is provided to be positioned near a semiconductor element, from among said semiconductor elements, and upstream from a center of said semiconductor element in the flow direction of said cooling medium.