Patent ID: 7245349
Filing Date: 2007-07-17
Classification: G03B,G03F

Abstract:
1. An exposure apparatus, comprising: a projection system which projects and exposes a pattern onto a substrate; a focus detection system which detects a position of a surface of the substrate in a direction of an exposure optical axis; an alignment scope which detects a position of a mark formed on the substrate in two directions perpendicular to the exposure optical axis; a first stage being movable to the two directions; and second and third stages arranged on said first stage and being capable of arranging a chuck supporting the substrate, wherein said second and third stages are configured to be able to perform the detections of the substrate on the chuck arranged on said third stage by said focus detection system and said alignment scope when the substrate on the chuck arranged on the second stage is exposed, and the exposure of the substrate and the detection by said focus detection system are simultaneously performed while said first stage is moved, and the detection of said alignment scope is performed while said first stage is stopped.