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    • 1. 发明授权
    • Electron beam lithography apparatus
    • 电子束光刻设备
    • US06730916B1
    • 2004-05-04
    • US09691234
    • 2000-10-19
    • Hiroshi TsujiMitsuru InoueNorio SaitouYasuhiro SomedaYoshimasa Fukushima
    • Hiroshi TsujiMitsuru InoueNorio SaitouYasuhiro SomedaYoshimasa Fukushima
    • H01J3720
    • H01J37/09H01J37/20H01J2237/3175H02K11/01H02K41/03
    • An electron beam lithography apparatus of the present invention prevents the electron beam trajectory from being affected by a leakage magnetic field from a permanent magnet which is used as a sample stage guide/driving mechanism. In this electron beam lithography apparatus, an air bearing guide is used as a sample stage guide mechanism, and the stage posture is held by attracting the stage floating on a surface plate to the surface plate side by the permanent magnet. To avoid the leakage magnetic field from the permanent magnet from affecting the electron beam irradiation position on the sample, the permanent magnet is magnetically shielded by a shield member. In addition, to reduce variations in magnetic field above the sample, which are generated when the shield member moves in a leakage magnetic field from the electron lens, another shield member is arranged under the electron lens.
    • 本发明的电子束光刻设备防止电子束轨迹受到用作样品台引导/驱动机构的永久磁铁的泄漏磁场的影响。 在该电子束光刻装置中,使用空气轴承引导件作为样品台引导机构,通过永久磁铁吸引在表面板上浮动到台板侧的台架来保持台阶姿态。 为了避免来自永磁体的泄漏磁场影响样品上的电子束照射位置,永磁体被屏蔽部件磁屏蔽。 此外,为了减小当屏蔽部件在来自电子透镜的泄漏磁场中移动时产生的样品上方的磁场的变化,在电子透镜下方设置有另一个屏蔽部件。
    • 3. 发明授权
    • Electron beam writing method and apparatus for carrying out the same
    • 电子束写入方法及其执行装置
    • US5759423A
    • 1998-06-02
    • US563329
    • 1995-11-28
    • Yasunari SohdaYasuhiro SomedaHiroyuki ItohKatsuhiro KawasakiNorio Saitou
    • Yasunari SohdaYasuhiro SomedaHiroyuki ItohKatsuhiro KawasakiNorio Saitou
    • G03F7/20H01J37/317H01L21/027B44C1/22H01L21/00
    • B82Y10/00B82Y40/00H01J37/3174H01J2237/31776
    • An electron beam writing apparatus comprises: an electron beam source for projecting an electron beam; a first mask provided with a first rectangular aperture for passing the electron beam projected by the electron beam source to shape the electron beam in a primary shaped beam having a rectangular cross section; a second mask provided with a second rectangular aperture for passing the primary shaped beam to shape the primary shaped beam in a secondary shaped beam having a rectangular cross section, and triangular apertures for passing the primary shaped beam to form a secondary shaped beam having a triangular cross section; a first electron beam deflecting system for moving the primary shaped beam on the surface of the second mask; and a second electron beam deflecting system for moving the secondary shaped beam on the surface of a workpiece on which a pattern is to be written. Each of the triangular apertures is formed in a size such that the triangular aperture can be entirely covered with a rectangular image formed by the first shaped beam on the surface of the second mask.
    • 电子束写入装置包括:用于投射电子束的电子束源; 第一掩模,设置有第一矩形孔,用于使由电子束源投影的电子束通过,以将电子束形成为具有矩形横截面的主要形状的梁; 第二掩模,其设置有第二矩形孔,用于使主要成形梁通过,以形成具有矩形截面的次级成形梁的主要成形梁,以及三角形孔,用于使初级成形梁通过以形成具有三角形的二次成形梁 横截面; 第一电子束偏转系统,用于将第一形状光束移动到第二掩模的表面上; 以及用于在待写入图案的工件的表面上移动二次成形光束的第二电子束偏转系统。 每个三角形孔形成为使得三角形孔可以被由第二掩模的表面上的第一成形束形成的矩形图像完全覆盖的尺寸。