发明名称 POSITION MEASUREMENT TECHNIQUE
摘要 <p>A position measurement apparatus for measuring a position of a mark includes an image capturing unit, a calculating unit which obtains variation in image data captured by the image capturing unit, and a setting unit which sets a parameter concerning a light receiving amount of the image capturing unit based on variations respectively obtained by the calculating unit with respect to a plurality of image data acquired by the image capturing unit at different light receiving amounts.</p>
申请公布号 KR20060045152(A) 申请公布日期 2006.05.16
申请号 KR20050026866 申请日期 2005.03.31
申请人 CANON KABUSHIKI KAISHA 发明人 HAYASHI NOZOMU
分类号 G01B11/00;H01L21/027;G03B27/52;G03F7/20;G03F9/00;H01L21/66 主分类号 G01B11/00
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