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    • 69. 发明专利
    • Inspection device for irregularities in cyclic pattern
    • 循环模式中的不正确检查装置
    • JP2006208084A
    • 2006-08-10
    • JP2005018325
    • 2005-01-26
    • Toppan Printing Co Ltd凸版印刷株式会社
    • INAMURA TAKASHIGUNJIMA MASASHITANIZAWA KEIICHI
    • G01N21/956G01M11/00H01J9/14H01J9/42
    • PROBLEM TO BE SOLVED: To provide an inspection device for detecting irregularities with stability and high accuracy imaging/detecting stripe-like irregularities that appear in a cyclical pattern.
      SOLUTION: This irregularity inspection device is equipped with an XY stage 21, equipped with a movement mechanism for moving a substrate in the X-axis direction and the Y-axis direction, respectively, in a two-dimensional planar visual field, while horizontally holding the substrate; four light sources 11A to 11D for separately providing obliquely transmitted illumination for the cyclic pattern on the substrate; an imaging means 31, disposed on the opposite side of the light sources with the XY stage in between for imaging diffracted light on the periodic pattern given the transmitted illumination; movement means 13 for separately making the respective light sources move relative to the substrate in the visual field; attitude changing means 12 for changing the directions of the light sources, in conjunction with the movement means 13 so that oblique transmitted light from the light sources falls on the periodic pattern, when the light sources are moved; and optical-condition four-axes setting means 40a to 40c for severally setting the motions of the movement means and the changing means so that the incident angles of the transmitted illumination given by the light sources change relative to the periodic pattern.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于以稳定性和高精度检测不规则性的检查装置成像/检测以周期性图案出现的条状不规则。

      解决方案:该不规则检查装置配备有XY台21,其配备有用于在二维平面视野中分别在X轴方向和Y轴方向上移动基板的移动机构, 同时水平地保持基板; 四个光源11A至11D,用于在基板上分别提供用于循环图案的倾斜透射照明; 成像装置31,其设置在具有XY台之间的光源的相对侧上,用于在给定透射照明的周期图案上成像衍射光; 移动装置13,用于在视野中分别使相应的光源相对于基底移动; 姿态改变装置12,用于改变光源的方向,结合移动装置13,使得当光源移动时来自光源的倾斜透射光落在周期性图案上; 以及光学条件四轴设定装置40a〜40c,分别设定移动机构和变更机构的运动,使得由光源发出的透射照射的入射角相对于周期性图案变化。 版权所有(C)2006,JPO&NCIPI