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    • 11. 发明申请
    • Semiconductor Devices and Methods of Manufacture Thereof
    • 半导体器件及其制造方法
    • US20100308418A1
    • 2010-12-09
    • US12481373
    • 2009-06-09
    • Knut StahrenbergRoland HamppJin-Ping HanKlaus von Arnim
    • Knut StahrenbergRoland HamppJin-Ping HanKlaus von Arnim
    • H01L27/088H01L21/8238
    • H01L21/823857H01L21/82345H01L21/823462H01L21/823842
    • Semiconductor devices and methods of manufacture thereof are disclosed. In one embodiment, a semiconductor device includes a first transistor having a gate dielectric and a cap layer disposed over the gate dielectric. The first transistor includes a gate including a metal layer disposed over the cap layer and a semiconductive material disposed over the metal layer. The semiconductor device includes a second transistor in a second region of the workpiece, which includes the gate dielectric and the cap layer disposed over the gate dielectric. The second transistor includes a gate that includes the metal layer disposed over the cap layer and the semiconductive material disposed over the metal layer. A thickness of the metal layer, a thickness of the semiconductive material, an implantation region of a channel region, or a doped region of the gate dielectric of the first transistor achieves a predetermined threshold voltage for the first transistor.
    • 公开了半导体器件及其制造方法。 在一个实施例中,半导体器件包括具有栅极电介质的第一晶体管和设置在栅极电介质上的覆盖层。 第一晶体管包括包括设置在盖层上的金属层的栅极和设置在金属层上的半导体材料。 半导体器件包括在工件的第二区域中的第二晶体管,其包括设置在栅极电介质上的栅极电介质和盖层。 第二晶体管包括栅极,其包括设置在覆盖层上的金属层和设置在金属层上的半导体材料。 第一晶体管的金属层的厚度,半导体材料的厚度,沟道区的注入区域或栅极电介质的掺杂区域实现了第一晶体管的预定阈值电压。