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    • 4. 发明授权
    • Thin film transistor having plural semiconductive oxides, thin film transistor array panel and display device including the same, and manufacturing method of thin film transistor
    • 具有多个半导体氧化物的薄膜晶体管,薄膜晶体管阵列面板及包括该半导体氧化物的显示装置以及薄膜晶体管的制造方法
    • US08686426B2
    • 2014-04-01
    • US13555889
    • 2012-07-23
    • Byung Du AhnJi Hun LimGun Hee KimKyoung Won LeeJe Hun Lee
    • Byung Du AhnJi Hun LimGun Hee KimKyoung Won LeeJe Hun Lee
    • H01L27/14
    • H01L29/7869H01L29/78696
    • A plural semiconductive oxides TFT (sos-TFT) provides improved electrical functionality in terms of charge-carrier mobility and/or threshold voltage variability. The sos-TFT may be used to form a thin film transistor array panel for display devices. An example sos-TFT includes: an insulated gate electrode; a first semiconductive oxide layer having a composition including a first semiconductive oxide; and a second semiconductive oxide layer having a different composition that also includes a semiconductive oxide. The first and second semiconductive oxide layers have respective channel regions that are capacitively influenced by a control voltage applied to the gate electrode. In one embodiment, the second semiconductive oxide layer includes at least one additional element that is not included in the first semiconductive oxide layer where the additional element is one of gallium (Ga), silicon (Si), niobium (Nb), hafnium (Hf), and germanium (Ge).
    • 多个半导体氧化物TFT(sos-TFT)在电荷载流子迁移率和/或阈值电压变化性方面提供改进的电功能。 sos-TFT可以用于形成用于显示装置的薄膜晶体管阵列面板。 示例sos-TFT包括:绝缘栅电极; 具有包含第一半导体氧化物的组成的第一半导体氧化物层; 以及具有不同组成的第二半导体氧化物层,其还包括半导体氧化物。 第一和第二半导体氧化物层具有由施加到栅电极的控制电压的电容性影响的各个沟道区。 在一个实施例中,第二半导体氧化物层包括至少一个附加元件,其不包括在第一半导体氧化物层中,其中附加元素是镓(Ga),硅(Si),铌(Nb),铪(Hf )和锗(Ge)。