Patent ID: 8094289
Filing Date: 2012-01-10
Classification: G03B,G03F

Abstract:
1. A scanning exposure apparatus which projects a pattern of an original onto a substrate by a projection optical system while scanning the original and the substrate along a first direction, thereby exposing the substrate, the apparatus comprising: a barycentric position adjusting unit configured to adjust a barycentric position, in the first direction, of exposure light that irradiates an image plane of the projection optical system; and a detector mounted on a substrate stage and configured to detect the barycentric position, in the first direction, of the exposure light at each of a plurality of image heights in a second direction that is perpendicular to the first direction, by detecting quantity of the exposure light when the substrate stage is scanned in the first direction, wherein the barycentric position adjusting unit includes a plurality of first blades arranged along the second direction, and a plurality of second blades arranged along the second direction such that edges of the plurality of second blades face edges of the plurality of first blades, the plurality of first blades and the plurality of second blades defining an illumination region of the original, and wherein the barycentric position adjusting unit adjusts the barycentric position in the first direction at each of the plurality of image heights in the second direction by adjusting the plurality of first blades and the plurality of second blades based on detection results by the detector.