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    • 1. 发明授权
    • Apparatus for detecting two-dimensional pattern and method for
transforming the pattern into binary image
    • 用于检测二维图案的装置和将图案转换成二进制图像的方法
    • US4506382A
    • 1985-03-19
    • US370781
    • 1982-04-21
    • Kazunari HadaNorio FujiiAtsushi KawaharaToru AzumaJunji Hazama
    • Kazunari HadaNorio FujiiAtsushi KawaharaToru AzumaJunji Hazama
    • G06K9/56G06T5/00G06T5/30H04N1/409H04N5/21
    • G06K9/56
    • Two-dimensional pattern detecting apparatus provided with register for serially receiving binary signals obtained from analog signals of a two-dimensional pattern and adapted to divide the pattern into pixels and to represent the density of bright and dark for pixels by the binary signals. The apparatus further includes a processing circuit adapted to compare with predetermined patterns a pattern composed of 8 peripheral pixels of a partial area of 3.times.3 pixels within the two-dimensional pattern, on the basis of the binary signals stored in the register. The processing circuit outputs a binary signal of a logic value stored in said register corresponding to a central pixel of the partial area when the pattern of the 8 pixels coincides with one of said predetermined patterns, and to outputs a binary signal of a logic value prevailing in 8 binary signals stored in the register corresponding to the 8 pixels when the pattern of the 8 pixels does not coincide with any of the predetermined patterns.
    • 二维图案检测装置设置有用于串行接收从二维图案的模拟信号获得的二进制信号的寄存器,并且适于将图案划分为像素并且通过二进制信号表示像素的亮和暗的密度。 该装置还包括处理电路,其适于根据存储在寄存器中的二进制信号,与二维图案中的3×3像素的部分区域的8个周边像素组成的图案与预定图案进行比较。 当8个像素的图案与所述预定图案中的一个一致时,处理电路输出存储在所述寄存器中的对应于该部分区域的中心像素的逻辑值的二进制信号,并输出主要的逻辑值的二进制信号 当8像素的图案与任何预定图案不一致时,存储在对应于8个像素的寄存器中的8个二进制信号。
    • 4. 发明授权
    • Automatic focusing device of a microscope
    • 自动对焦装置的显微镜
    • US4342905A
    • 1982-08-03
    • US180150
    • 1980-08-21
    • Norio FujiiAtsushi KawaharaMasahiro Sawada
    • Norio FujiiAtsushi KawaharaMasahiro Sawada
    • G02B21/24G01J1/20
    • G02B21/244
    • An automatic focusing device of a microscope having an objective lens and a stage on which a specimen is placed comprises distance varying means for varying the relative distance between the objective lens and the stage, distance detecting means for producing a distance output corresponding to said distance, photoelectric detector means for photoelectrically detecting a high frequency component of the space frequency component of the image of the specimen on the stage by the objective lens, judging means for judging whether or not a predetermined peak smaller than a maximum peak exists in the output of the photoelectric detector means within a predetermined distance range from a first distance output of the distance detecting means when the output of the photoelectric detector means assumes said maximum peak and for producing an in-focus output when said predetermined peak exists, and means for determining said relative distance on the basis of said in-focus output.
    • 具有物镜的显微镜的自动聚焦装置和放置有试样的台架包括用于改变物镜与台架之间的相对距离的距离变化装置,用于产生对应于所述距离的距离输出的距离检测装置, 光电检测装置,用于通过物镜光电检测载物台上的样本的空间频率分量的高频分量;判断装置,用于判断小于最大峰值的预定峰值是否存在于 光电检测装置,当光电检测装置的输出呈现所述最大峰值时,距距离检测装置的第一距离输出预定距离范围内,并且当存在所述预定峰值时产生对焦输出,以及用于确定所述相对 基于所述对焦输出的距离。
    • 8. 发明授权
    • Device for measuring contour length of a two-dimensional pattern
    • 用于测量二维图案轮廓长度的装置
    • US3980870A
    • 1976-09-14
    • US575718
    • 1975-05-08
    • Atsushi Kawahara
    • Atsushi Kawahara
    • G01B3/12G01B11/02G01B11/03G01B11/24G01B21/02G01B21/20G01B11/00G06K9/10
    • G01B11/022G01B11/24
    • A device for measuring the contour length of a two-dimensional pattern comprises means for scanning the pattern and sampling each scanned line at a predetermined length to convert the pattern into digitally coded patterns. A rotary means rotates the two-dimensional pattern relative to the converting means to attain uniform spatial distribution of the two-dimensional pattern. A discriminating means discriminates that the digital coded patterns corresponding to the contour line segments placed between the neighboring scanning lines correspond to the number of times the length of the sample to classify the segments into a number of groups according to the result of the discrimination. A computer multiplies the outputs from the classifying means by predetermined weighting coefficients, respectively, at each rotated position of said two-dimensional pattern to obtain the average of the contour length of the two-dimensional pattern at every rotated position.
    • 用于测量二维图案的轮廓长度的装置包括用于扫描图案并以预定长度对每条扫描线进行采样的装置,以将图案转换成数字编码图案。 旋转装置相对于转换装置旋转二维图案以获得二维图案的均匀的空间分布。 鉴别装置鉴别出与相邻扫描线之间的轮廓线段相对应的数字编码图形,与根据鉴别结果将片段长度分类为多个组的样本长度相对应。 计算机将分类装置的输出分别乘以在所述二维图形的每个旋转位置处的预定加权系数,以获得每个旋转位置处的二维图案的轮廓长度的平均值。
    • 9. 发明授权
    • Particle inspection apparatus, exposure apparatus, and device manufacturing method
    • 粒子检查装置,曝光装置及装置的制造方法
    • US08059269B2
    • 2011-11-15
    • US12831103
    • 2010-07-06
    • Atsushi Kawahara
    • Atsushi Kawahara
    • G01N21/88
    • G03F1/84
    • A particle inspection apparatus includes an irradiation unit configured to apply a light beam onto front and back surfaces of an object to be inspected, first and second detection units configured to detect scattering light from the surfaces, a calculation unit configured to conduct a particle inspection on the surfaces on the basis of outputs from the detection units, and a control unit configured to control the irradiation unit, the detection units, and the calculation unit. The irradiation unit can selectively apply the beam onto the front or back surface. The control unit causes the calculation unit to conduct the particle inspection on the inspection surface on which the light beam is selectively applied, on the basis of outputs made by the detection unit corresponding to simultaneous application and selective application of the light beam.
    • 一种粒子检查装置,包括:被配置为将被检测体的前后表面施加光束的照射部,配置为检测来自所述表面的散射光的第一检测部和第二检测部, 基于来自检测单元的输出的表面,以及被配置为控制照射单元,检测单元和计算单元的控制单元。 照射单元可以选择性地将光束施加到前表面或后表面上。 控制单元使得计算单元基于对应于同时施加和选择性地施加光束的由检测单元产生的输出,在选择了光束的检查表面上进行粒子检查。
    • 10. 发明申请
    • EXPOSURE APPARATUS AND METHOD OF MANUFACTURING DEVICE
    • 曝光装置及其制造方法
    • US20080218708A1
    • 2008-09-11
    • US12038980
    • 2008-02-28
    • Atsushi Kawahara
    • Atsushi Kawahara
    • G03B27/52
    • G03F7/70916G03F1/84G03F7/70533G03F7/70866
    • An exposure apparatus is configured to transfer a pattern to a substrate by exposing the substrate to light via a reticle. The apparatus comprises an inspection unit configured to inspect the reticle, an exposure unit configured to expose the substrate to light via the reticle inspected by the inspection unit, and a controller configured to control the inspection unit and the exposure unit. The controller (i) sets a partial region of the reticle, (ii) causes the inspection unit to inspect the reticle on which the partial region is set, and (iii) causes the exposure unit to expose the substrate to light via the partial region if the inspection unit finds no abnormality in the partial region.
    • 曝光装置被配置为通过经由掩模版曝光基板而将图案转印到基板。 所述装置包括:检查单元,被配置为检查所述掩模版;曝光单元,被配置为经由所述检查单元检查的所述掩模版曝光所述基板;以及控制器,被配置为控制所述检查单元和所述曝光单元。 控制器(i)设置掩模版的部分区域,(ii)使检查单元检查其上设置有部分区域的掩模版,以及(iii)使曝光单元通过部分区域曝光基板 如果检查单元在部分区域中没有发现异常。