Patent ID: 8125613

Claim:
An exposure apparatus comprising: a projection optical system that exposes a predetermined exposure area on a substrate with a pattern of a mask at a predetermined projection magnification, a center of an optical axis of the projection optical system being set at a different position from a center of a projection area onto which the pattern is projected; a control device that adjusts a relative position relationship between the mask and the substrate and that controls simultaneously scanning movement of the mask and the substrate in a prescribed direction; a magnification modification device that modifies the projection magnification of the projection optical system; a calculation device that calculates a first shift length of the center of the projection area in a direction intersecting with the prescribed direction, associated with modification of the projection magnification, and calculates a second shift length of the center of the projection area in the prescribed direction, associated with the modification of the projection magnification; and a correction device connected to the control device and that, based on the first shift length, corrects a relative position between the mask and the substrate in the direction intersecting with the prescribed direction and, based on the second shift length, corrects a scanning condition in the prescribed direction for the mask and the substrate, wherein the scanning condition comprises a velocity ratio between the mask and the substrate, or a synchronous velocity of motion of the mask and the substrate.