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    • 6. 发明申请
    • SEMICONDUCTOR DEVICE
    • 半导体器件
    • US20130020569A1
    • 2013-01-24
    • US13547119
    • 2012-07-12
    • Shunpei YAMAZAKINaoto YAMADEJunichi KOEZUKA
    • Shunpei YAMAZAKINaoto YAMADEJunichi KOEZUKA
    • H01L29/12
    • H01L27/1225
    • A semiconductor device which can operate at high speed and consumes a smaller amount of power is provided. In a semiconductor device including transistors each including an oxide semiconductor, the oxygen concentration of the oxide semiconductor film of the transistor having small current at negative gate voltage is different from that of the oxide semiconductor film of the transistor having high field-effect mobility and large on-state current. Typically, the oxygen concentration of the oxide semiconductor film of the transistor having high field-effect mobility and large on-state current is lower than that of the oxide semiconductor film of the transistor having small current at negative gate voltage.
    • 提供了可以高速运行并消耗更少功率的半导体器件。 在包括各自包含氧化物半导体的晶体管的半导体器件中,在负栅极电压下具有小电流的晶体管的氧化物半导体膜的氧浓度与具有高场效应迁移率的晶体管的氧化物半导体膜的氧浓度不同 通态电流。 通常,具有高场电迁移率和大导通状态电流的晶体管的氧化物半导体膜的氧浓度低于在负栅极电压下具有小电流的晶体管的氧化物半导体膜的氧浓度。