Patent ID: 8928087
Filing Date: 2015-01-06
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor element region having a plurality of first insulated gates and a plurality of second insulated gates; an electrode that is formed on a surface of the semiconductor element region; a thermal conduction member that is located on a surface side of a central portion of the electrode; a central region formed on a back side of the central portion of the electrode, the plurality of first insulated gates formed in the central region; a protective membrane that is formed on a surface of the electrode on a peripheral portion surrounding the central portion; a peripheral region formed on a back side of the peripheral portion, the plurality of second insulated gates formed in the peripheral region, the plurality of first insulated gates different than the plurality of second insulated gates, wherein, the thermal conduction member being higher in thermal conductivity than the protective membrane, and the plurality first and second insulated gates formed such that electric current flows through the peripheral region for a shorter period of time than through the central region.