发明名称 Exposure method and apparatus, maintenance method and device manufacturing method
摘要 An exposure method includes holding a substrate held by a substrate holder on a substrate stage moving on an image plane side of a projection optical system; forming an immersion area the image plane side of the projection optical system by using a liquid supplied from a liquid supplying mechanism; and exposing a substrate by exposure light via the projection optical system and the immersion area. During a period when exposure of the substrate is not performed, an upper portion of the substrate holder is cleaned by moving the substrate stage relative to the immersion area, and an upper portion of a measuring stage is cleaned by moving the measuring stage relative to the immersion area. A cleaning liquid can be used as a liquid for forming the immersion area during cleaning. High-resolution immersion exposure is performed at a high throughput by suppressing entering of foreign materials into the liquid.
申请公布号 US2009066922(A1) 申请公布日期 2009.03.12
申请号 US20080289148 申请日期 2008.10.21
申请人 NIKON CORPORATION 发明人 NAKANO KATSUSHI
分类号 G03B27/52 主分类号 G03B27/52
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