发明名称 Exposure apparatus and device fabrication method
摘要 The present invention provides an exposure apparatus including a light shielding plate which is placed on a plane conjugate to an object plane of a projection optical system in an illumination optical system, includes, on an edge thereof, an arc that overlaps a circular boundary line inside an outer periphery of a substrate, and defines a region on the substrate, to which a pattern is to be transferred, a detection unit which detects a shift amount between the center position of the substrate and the center position of an array of a plurality of shot regions on a layer, and a control unit which positions the plate at a position, at which the plate shields light incident on an outer peripheral region shifted inward from the outer periphery of the substrate by a predetermined width, based on the shift amount.
申请公布号 US8531649(B2) 申请公布日期 2013.09.10
申请号 US201213495300 申请日期 2012.06.13
申请人 HIRANO SHINICHI;YAMADA KOHEI;CANON KABUSHIKI KAISHA 发明人 HIRANO SHINICHI;YAMADA KOHEI
分类号 G03B27/72;G03B27/54 主分类号 G03B27/72
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