Patent Document ID: 8068211
Application ID: 12166978
Patent Status: 1

Claim One:
1. An exposure apparatus for exposing a shot region on a substrate to light, the apparatus comprising: a stage configured to hold the substrate and to be movable; a projection optical system configured to project light onto the substrate; a measuring device configured to measure a position of a partial region of a surface of the substrate with respect to a direction of an optical axis of the projection optical system; and a controller configured to cause the measuring device to measure the position with respect to each of a plurality of measurement points of each of a plurality of shot regions, to determine a global shape of the surface based on the measured positions, to calculate a correction value with respect to each of the plurality of measurement points based on a difference between the measured position and a corresponding position obtained from the determined global shape, and to move the stage based on measurement values corrected using the respective correction values corresponding to the respective measurement points, wherein the controller is configured to select at least one of the plurality of measurement points where a reproducibility of measured positions satisfies a predetermined condition, and to calculate the global shape with a weight for a measured position of the selected measurement point greater than weights for measured positions of measurement points other than the selected measurement point.