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    • 3. 发明申请
    • GRAPHENE TRANSISTOR WITH A SELF-ALIGNED GATE
    • 具有自对准门的石墨晶体管
    • US20120056161A1
    • 2012-03-08
    • US12876454
    • 2010-09-07
    • Phaedon AvourisDamon B. FarmerYu-Ming LinYu Zhu
    • Phaedon AvourisDamon B. FarmerYu-Ming LinYu Zhu
    • H01L29/76H01L21/335
    • H01L29/1606H01L29/41733H01L29/42384H01L29/4908H01L29/66742H01L29/778H01L29/78684
    • A graphene-based field effect transistor includes source and drain electrodes that are self-aligned to a gate electrode. A stack of a seed layer and a dielectric metal oxide layer is deposited over a patterned graphene layer. A conductive material stack of a first metal portion and a second metal portion is formed above the dielectric metal oxide layer. The first metal portion is laterally etched employing the second metal portion, and exposed portions of the dielectric metal oxide layer are removed to form a gate structure in which the second metal portion overhangs the first metal portion. The seed layer is removed and the overhang is employed to shadow proximal regions around the gate structure during a directional deposition process to form source and drain electrodes that are self-aligned and minimally laterally spaced from edges of the gate electrode.
    • 基于石墨烯的场效应晶体管包括与栅电极自对准的源极和漏极。 在图案化的石墨烯层上沉积种子层和电介质金属氧化物层的堆叠。 第一金属部分和第二金属部分的导电材料堆叠形成在电介质金属氧化物层的上方。 使用第二金属部分横向蚀刻第一金属部分,去除电介质金属氧化物层的暴露部分以形成其中第二金属部分悬垂在第一金属部分上的栅极结构。 移除晶种层并且在定向沉积工艺期间使用突出部来遮蔽栅极结构周围的近端区域,以形成与栅电极的边缘自对准且最小程度地横向间隔的源电极和漏电极。
    • 5. 发明授权
    • Graphene transistor with a self-aligned gate
    • 具有自对准栅极的石墨烯晶体管
    • US08344358B2
    • 2013-01-01
    • US12876454
    • 2010-09-07
    • Phaedon AvourisDamon B. FarmerYu-Ming LinYu Zhu
    • Phaedon AvourisDamon B. FarmerYu-Ming LinYu Zhu
    • H01L29/76
    • H01L29/1606H01L29/41733H01L29/42384H01L29/4908H01L29/66742H01L29/778H01L29/78684
    • A graphene-based field effect transistor includes source and drain electrodes that are self-aligned to a gate electrode. A stack of a seed layer and a dielectric metal oxide layer is deposited over a patterned graphene layer. A conductive material stack of a first metal portion and a second metal portion is formed above the dielectric metal oxide layer. The first metal portion is laterally etched employing the second metal portion, and exposed portions of the dielectric metal oxide layer are removed to form a gate structure in which the second metal portion overhangs the first metal portion. The seed layer is removed and the overhang is employed to shadow proximal regions around the gate structure during a directional deposition process to form source and drain electrodes that are self-aligned and minimally laterally spaced from edges of the gate electrode.
    • 基于石墨烯的场效应晶体管包括与栅电极自对准的源极和漏极。 在图案化的石墨烯层上沉积种子层和电介质金属氧化物层的堆叠。 第一金属部分和第二金属部分的导电材料堆叠形成在电介质金属氧化物层的上方。 使用第二金属部分横向蚀刻第一金属部分,去除电介质金属氧化物层的暴露部分以形成其中第二金属部分悬垂在第一金属部分上的栅极结构。 移除晶种层并且在定向沉积工艺期间使用突出部来遮蔽栅极结构周围的近端区域,以形成与栅电极的边缘自对准且最小程度地横向间隔的源电极和漏电极。
    • 10. 发明授权
    • Two-dimensional locating method of motion platform based on magnetic steel array
    • 基于磁钢阵列的运动平台二维定位方法
    • US09455650B2
    • 2016-09-27
    • US13522788
    • 2011-01-18
    • Jinchun HuYu ZhuJinsong WangMing ZhangKai LiaoKaiming YangDengfeng XuWensheng YinGuanghong Duan
    • Jinchun HuYu ZhuJinsong WangMing ZhangKai LiaoKaiming YangDengfeng XuWensheng YinGuanghong Duan
    • G06F17/11H02N15/00G01D5/14
    • H02N15/00G01D5/145
    • A two-dimensional locating method of a motion platform based on a magnetic steel array involves the following steps: placing more than four linear Hall sensors at any different positions within one or more polar distances of the magnetic steel array on the surface of the motion platform in a motion system; determining a magnetic flux density distribution model according to the magnetic steel array; determining the mounting positions of the above-mentioned linear Hall sensors, which are converted into phases with respect to the mass center of the motion platform; recording the magnetic flux density measured values of the linear Hall sensors as the motion proceeds; solving the phases of the mass center of the motion platform in a plane, with the measured values being served as observed quantities and the magnetic flux density distribution model being served as a computation model; and determining the position of the mass center of the motion platform with respect to an initial phase according to the phase, so as to realize the planar location of the motion platform. The present invention provides a simple, fast and robust method for computing mass center positions for a motion system containing a magnetic steel array.
    • 基于磁钢阵列的运动平台的二维定位方法包括以下步骤:将多于四个线性霍尔传感器放置在运动平台表面上的磁钢阵列的一个或多个极距离内的任何不同位置 在运动系统中 根据磁钢阵列确定磁通密度分布模型; 确定上述线性霍尔传感器的安装位置,其相对于运动平台的质心转换成相位; 在运动过程中记录线性霍尔传感器的磁通密度测量值; 解决平面中运动平台质心的相位,测量值作为观测量,磁通密度分布模型用作计算模型; 并根据相位确定运动平台的质量中心相对于初始相位的位置,以便实现运动平台的平面位置。 本发明提供了一种用于计算包含磁钢阵列的运动系统的质心位置的简单,快速和鲁棒的方法。