Patent ID: 8625073

Claim:
An exposure apparatus including an optical system having an illumination optical system configured to illuminate an original and a projection optical system configured to project an image of a pattern formed at the original on a substrate that includes an arc-shaped portion on an outer edge, the exposure apparatus comprising: a light shielding plate arranged on or near to a conjugate plane with a object plane of the projection optical system in the optical system, and including an arc-shaped portion for defining at least a part of an outer edge of a region on which the image of the pattern is projected on the substrate in an arc shape; a rotational drive unit configured to rotatably drive the light shielding plate around an axis of rotation along an optical path in the optical system; a shift drive unit configured to shift-drive the light shielding plate in a direction intersecting the axis of rotation; an acquisition unit configured to acquire information relating to a relative position between a reference axis serving as a reference when the image of the pattern is projected on the substrate by the optical system and the axis of rotation; and a control unit configured to control the rotational drive unit and the shift-drive unit so that the light shielding plate is positioned at a predetermined position based on the information relating to the relative position.