发明名称 Exposure apparatus, method of controlling the same and method of manufacturing device
摘要 An exposure apparatus exposes a resist on a substrate to light via an optical system. The exposure apparatus includes: a table configured to position the substrate at an exposure position upon holding the substrate; an obtaining unit configured to obtain a distance from an alignment mark formed on the substrate to a resist surface, and a tilt of the resist surface; and a control unit configured to calculate a correction value for correcting a shift in exposure position, that occurs upon tilt correction of the table, so as to reduce the tilt of the resist surface, using the distance and the tilt, and control a position of the table in accordance with the correction value.
申请公布号 US9097991(B2) 申请公布日期 2015.08.04
申请号 US201313804138 申请日期 2013.03.14
申请人 CANON KABUSHIKI KAISHA 发明人 Sakamoto Noritoshi
分类号 G01B11/00;G03B27/32;G03B27/54;G03B27/58;G03C9/00;G03F5/00;G03F7/20;G03F9/00 主分类号 G01B11/00
代理机构 Rossi, Kimms & McDowell LLP 代理人 Rossi, Kimms & McDowell LLP
主权项 1. An exposure apparatus which exposes a resist on a substrate to light via an optical system, the apparatus comprising: a table configured to position the substrate at an exposure position upon holding the substrate; an obtaining unit configured to obtain a distance from an alignment mark formed on the substrate to a resist surface at a position of the alignment mark, and a tilt of the resist surface with respect to a predetermined surface; and a control unit configured to calculate a correction value for correcting a shift in exposure position, that occurs upon tilt driving of said table, using the distance and the tilt, and control a position of said table in accordance with the correction value.
地址 JP