Patent ID: 6699628
Filing Date: 2004-03-02
Classification: G03F

Abstract:
An aligning method for a scanning projection exposure apparatus, which scans a first movable stage which moves with a first object being placed thereon, and a second movable stage which moves with a second object being placed thereon, in synchronism with each other with respect to a projection optical system, and projects a pattern formed on the first object onto the second object through the projection optical system, said method comprising the steps of:positioning the first object with respect to the first movable stage; detecting a position of marks formed in a direction perpendicular to the scanning direction on a reference plate fixed to the first movable stage by a detection system and obtaining a detection reference position of the detection system from a position detection result; and detecting a position of marks formed in a direction perpendicular to the scanning direction on the first object with the detection system, thereby obtaining a deformation amount of the first object.