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    • 65. 发明申请
    • Character pattern extracting method, charged particle beam drawing method, and character pattern extracting program
    • 字符图案提取方法,带电粒子束绘制方法和字符图案提取程序
    • US20070263921A1
    • 2007-11-15
    • US11797531
    • 2007-05-04
    • Tetsuro NakasugiTakumi OtaTakeshi KoshibaNoriaki Sasaki
    • Tetsuro NakasugiTakumi OtaTakeshi KoshibaNoriaki Sasaki
    • G06K9/00
    • H01J37/3174B82Y10/00B82Y40/00
    • A character pattern extracting method includes ranking character patterns whose number is larger than a maximum number of character patterns in an aperture, depending on the number of reference times in design data of a semiconductor device, extracting first extraction patterns whose number is smaller than the maximum number from the large number of read character patterns in a descending order of the reference time number, defining character patterns except the first extraction patterns out of the larger number of character patterns as candidate patterns, selecting from the candidate patterns a plurality of candidate patterns whose number corresponds to a difference between the number of extracted patterns from the maximum number, and creating combinations of the selected candidate patterns, and extracting second extraction patterns included in a combination among the combinations of candidate patterns, in which a manufacturing time of the semiconductor device is most shortened.
    • 字符图案提取方法包括根据半导体器件的设计数据中的参考时间的数量来排列数量大于孔径中的最大字符图案数量的字符图案,提取数量小于最大值的第一提取图案 以大量的读取字符图案的数量以参考时间数字的降序排列,将除了较大数量的字符图案之外的第一提取模式除外的字符图案作为候选图案,从候选图案中选择多个候选图案, 数字对应于从最大数量提取的图案的数量之间的差异,以及创建所选择的候选图案的组合,以及提取包括在候选图案的组合中的组合中的第二提取图案,其中半导体器件的制造时间 最缩短。
    • 66. 发明授权
    • Charged particle beam drawing equipment, method of adjusting aperture mask, and method of manufacturing semiconductor device
    • 带电粒子束拉制设备,调整孔径掩模的方法和制造半导体器件的方法
    • US07242014B2
    • 2007-07-10
    • US11172996
    • 2005-07-05
    • Takumi OtaTetsuro Nakasugi
    • Takumi OtaTetsuro Nakasugi
    • H01J37/30H01J37/256
    • H01J37/3045B82Y10/00B82Y40/00H01J37/3174
    • A charged particle beam drawing equipment includes charged particle beam source, first and second shaping aperture masks with first and second opening portions for rotation adjustment, detection section to detect charged particle beam intensity distribution in a plane parallel to the second mask, the beam being emitted from the source and passing through the opening portions, rotation angle control section to control relative rotation angle between the masks, acquisition section to acquire relative rotation angle between the masks such that deviation in relative rotation angle between the masks falls within a predetermined range based on detection results obtained by changing the relative rotation angle between the masks plural times by the control section and by detecting the beam by the detection section for each rotation angle, and instruction section to instruct the rotation angle control section such that the relative rotation angle between the masks be the acquired rotation angle.
    • 带电粒子束拉制设备包括带电粒子束源,具有用于旋转调节的第一和第二开口部分的第一和第二成形孔径掩模,用于检测平行于第二掩模的平面中的带电粒子束强度分布的检测部分, 从源极通过开口部分,旋转角度控制部分,以控制掩模之间的相对旋转角度,获取部分,以获得掩模之间的相对旋转角度,使得掩模之间的相对旋转角度的偏差落在预定范围内,基于 通过控制部分多次改变掩模之间的相对旋转角度并且通过每个旋转角度由检测部分检测光束而获得的检测结果,以及指令部分,其指示旋转角度控制部分,使得旋转角度控制部分之间的相对旋转角度 掩模是获得的旋转角度 。
    • 69. 发明授权
    • Energy beam exposure method and exposure apparatus
    • 能量束曝光方法和曝光装置
    • US06897454B2
    • 2005-05-24
    • US10443856
    • 2003-05-23
    • Noriaki SasakiTetsuro Nakasugi
    • Noriaki SasakiTetsuro Nakasugi
    • G03F1/20G03F1/68G03F7/20H01J37/317H01L21/027A61N5/00
    • B82Y10/00B82Y40/00G03F7/70441G03F7/70475H01J37/3174H01J2237/31761H01J2237/31776
    • An exposure method using an energy beam exposure apparatus capable of controlling magnitude relation between blurs of energy beam in first and second directions for exposing a pattern on a sample in the apparatus in a state in which the blur of energy beam in one direction of the first and second directions is set smaller than the blur of energy beam in the other direction comprises adjusting the magnitude relation of the blurs of energy beam in the first and second directions, adjusting the direction of the sample in the apparatus on the basis of the pattern and the magnitude relation of the blurs of energy beam in the first and second directions, and projecting the pattern onto the sample by exposing the sample to the energy beam and using shape correction of the pattern needed to compensate blurs of energy beam in the first and second directions.
    • 一种使用能量束曝光装置的曝光方法,能量束曝光装置能够控制能量束在第一和第二方向上的模糊之间的大小关系,用于在第一和第二方向上的能量束的一个方向上的能量束的模糊的状态下暴露在装置中的样品上的图案 并且将第二方向设定为小于在另一方向上的能量束的模糊包括调整能量束在第一和第二方向上的模糊的大小关系,基于图案调整装置中的样本的方向,以及 能量束在第一和第二方向上的模糊的大小关系,以及通过将样本暴露于能量束并且使用形状校正来补偿第一和第二方向上的能量束的模糊所需的图案,将图案投影到样本上 方向。