Patent ID: 6490025
Filing Date: 2002-12-03
Classification: G03F

Abstract:
An exposure apparatus for projecting an image pattern on a mask onto a photosensitive substrate, said apparatus comprising:a body; a substrate stage movable with respect to said body and constructed so as to hold the photosensitive substrate thereon; a mask stage movable with respect to said body and constructed so as to hold the mask thereon, said mask stage comprising a rough movement stage which scan-moves according to the movement of said substrate stage, and a fine movement stage which moves with respect to said rough movement stage and substantially integrally with said rough movement stage and corrects the relative positional relationship between the mask and the photosensitive substrate; a measuring device which respectively measures the positions of said mask stage and said substrate stage; a vibration sensor which measures vibrations of at least a portion of the body; and a stage controller connected to said measuring device and said vibration sensor and having a speed control loop which causes said fine movement stage and said substrate stage to scan at a predetermined speed on the basis of a measurement value of said measuring device in order to perform a projection of said image pattern for inputting an output of said vibration sensor which measures a vibration caused by said scanning, into said speed control loop.