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    • 10. 发明公开
    • METHOD OF MEASURING SHOT SHAPE AND MASK
    • VERFAHREN ZUR MESSUNG VON SCHLAGBILD UND MASKE
    • EP3159738A3
    • 2017-05-17
    • EP16183209.2
    • 2006-03-23
    • Nikon Corporation
    • KONDO, Shinjiro
    • H01L21/027G03F1/38G03F7/20
    • G03F9/7084G03F1/44G03F7/706G03F7/70616G03F7/70633G03F9/7076
    • A method of measuring shot shape includes sequentially exposing a substrate with main scale marks (32) in compliance with a predetermined map, and forming a reference grid including a plurality of the main scale marks (32) arranged in the predetermined map in at least one shot region, exposing a shot for measuring, via a projection optical system, that includes a plurality of auxiliary scale marks (34) arranged in the predetermined map in the shot region, measuring a relative positional relationship between adjacent main scale marks (32), measuring an amount of deviation between the main scale marks (32) and the auxiliary scale marks (34), and correcting the reference grid based on the relative positional relationship, and calculating a shot shape of the shot for measuring based on the corrected reference grid and the amount of deviation.
    • 一种测量镜头形状的方法包括:按照预定的图形顺序曝光具有主刻度标记(32)的基片,以及形成包括布置在预定图中的至少一个的多个主刻度(32)的参考网格 通过投影光学系统曝光用于测量的镜头,该投影光学系统包括布置在拍摄区域中的预定图中的多个辅助刻度标记(34),测量相邻主刻度(32)之间的相对位置关系, 测量主刻度标记(32)和辅助刻度(34)之间的偏差量,并且基于相对位置关系校正参考栅格,并且基于校正的参考栅格计算用于测量的镜头的镜头形状 和偏差量。