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    • 5. 发明授权
    • Device scheme of HKMG gate-last process
    • HKMG最终进程的设备方案
    • US08487382B2
    • 2013-07-16
    • US13292665
    • 2011-11-09
    • Sheng-Chen ChungKong-Beng TheiHarry Chuang
    • Sheng-Chen ChungKong-Beng TheiHarry Chuang
    • H01L21/70
    • H01L21/823842H01L21/28088H01L29/66545
    • The present disclosure provides a method for making metal gate stacks of a semiconductor device. The method includes forming a high k dielectric material layer on a semiconductor substrate; forming a conductive material layer on the high k dielectric material layer; forming a dummy gate in a n-type field-effect transistor (nFET) region and a second dummy gate in a pFET region employing polysilicon; forming an inter-level dielectric (ILD) material on the semiconductor substrate; applying a first chemical mechanical polishing (CMP) process to the semiconductor substrate; removing the polysilicon from the first dummy gate, resulting in a first gate trench; forming a n-type metal to the first gate trench; applying a second CMP process to the semiconductor substrate; removing the polysilicon from the second dummy gate, resulting in a second gate trench; forming a p-type metal to the second gate trench; and applying a third CMP process to the semiconductor substrate.
    • 本公开提供了制造半导体器件的金属栅叠层的方法。 该方法包括在半导体衬底上形成高k电介质材料层; 在所述高k电介质材料层上形成导电材料层; 在n型场效应晶体管(nFET)区域中形成伪栅极,在使用多晶硅的pFET区域中形成第二伪栅极; 在所述半导体衬底上形成层间电介质(ILD)材料; 对半导体衬底施加第一化学机械抛光(CMP)工艺; 从第一伪栅极去除多晶硅,产生第一栅极沟槽; 在第一栅极沟槽上形成n型金属; 对所述半导体衬底施加第二CMP工艺; 从第二伪栅极去除多晶硅,产生第二栅极沟槽; 在所述第二栅极沟槽中形成p型金属; 以及对所述半导体衬底施加第三CMP处理。
    • 7. 发明申请
    • CHARGE PUMP CIRCUITS, SYSTEMS, AND OPERATIONAL METHODS THEREOF
    • 充电泵电路,系统及其操作方法
    • US20120169409A1
    • 2012-07-05
    • US13417016
    • 2012-03-09
    • Ming-Dou KERYi-Hsin WENG
    • Ming-Dou KERYi-Hsin WENG
    • G05F3/02
    • H02M3/073G11C5/145H02M2003/075H02M2003/077
    • A charge pump circuit includes at least one stage between an input end and an output end. The at least one stage includes a first CMOS transistor coupled with a first capacitor and a second CMOS transistor coupled with a second capacitor. The at least one stage is capable of receiving a first timing signal and a second timing signal for pumping an input voltage at the input end to an output voltage at the output end. During a transitional period of the first timing signal and the second timing signal, the at least one stage is capable of substantially turning off at least one of the first CMOS transistor and the second CMOS transistor for substantially reducing leakage currents flowing through at least one of the first CMOS transistor and the second CMOS transistor.
    • 电荷泵电路包括在输入端和输出端之间的至少一个级。 所述至少一个级包括与第一电容器耦合的第一CMOS晶体管和与第二电容器耦合的第二CMOS晶体管。 所述至少一个级能够接收第一定时信号和第二定时信号,用于将输入端的输入电压泵送到输出端的输出电压。 在第一定时信号和第二定时信号的过渡时段期间,至少一个级能够基本上关闭第一CMOS晶体管和第二CMOS晶体管中的至少一个,用于基本上减少流过至少一个 第一CMOS晶体管和第二CMOS晶体管。