Patent ID: 7106419

Claim:
An exposure method for exposing each of a plurality of shots on an object to light via a pattern of a reticie while the reticie and the object are scanned, said method comprising steps of: measuring flatness of each of the plurality of shots on the object; specifying a shot, among the plurality of shots, whose flatness is worse than a predetermined threshold as a specific shot based on the measured flatness; measuring height of a measurement point in each of the plurality of shots on the object, while the reticle and the object are scanned, a pitch of the measurement points in the specific shot being smaller than a pitch of the measurement points in a shot other than the specific shot; controlling at least one of a height and a tilt of the object, while the reticle and the object are scanned, based on the measured height; and exposing each of the plurality of shots to light via the pattern of the reticle in parallel with said height measuring step and said controlling step.