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 |