DEFORMATION PATTERN RECOGNITION METHOD, PATTERN TRANSFERRING METHOD, PROCESSING DEVICE MONITORING METHOD, AND LITHOGRAPHIC APPARATUS
    1.
    发明申请
    DEFORMATION PATTERN RECOGNITION METHOD, PATTERN TRANSFERRING METHOD, PROCESSING DEVICE MONITORING METHOD, AND LITHOGRAPHIC APPARATUS 有权
    变形图案识别方法,图案转印方法,处理装置监视方法和平面设备

    公开(公告)号:US20150205213A1

    公开(公告)日:2015-07-23

    申请号:US14420311

    申请日:2013-06-27

    Abstract: A deformation pattern recognition method including providing one or more deformation patterns, each deformation pattern being associated with a deformation of a substrate that may be caused by a processing device; transferring a first pattern to a substrate, the first pattern including at least N alignment marks, wherein each alignment mark is positioned at a respective predefined nominal position; processing the substrate; measuring a position of N alignment marks and determining an alignment mark displacement for the N alignment marks by comparing the respective nominal position with the respective measured position; fitting at least one deformation pattern to the measured alignment mark displacements; determining an accuracy value for each fitted deformation pattern, the accuracy value being representative of the accuracy of the corresponding fit; using the determined accuracy value, determining whether an associated deformation pattern is present.

    Abstract translation: 一种变形图案识别方法,包括提供一个或多个变形图案,每个变形图案与可由处理装置引起的基板的变形相关联; 将第一图案转印到基板,所述第一图案至少包括N个对准标记,其中每个对准标记位于相应的预定标称位置; 处理基板; 通过将相应的标称位置与相应的测量位置进行比较来测量N个对准标记的位置并确定N个对准标记的对准标记位移; 将至少一个变形图案拟合到所测量的对准标记位移; 确定每个拟合变形模式的精度值,精度值代表相应拟合精度; 使用所确定的精度值,确定是否存在相关联的变形模式。

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