Patent ID: 6522390
Filing Date: 2003-02-18
Classification: G03F

Abstract:
A method for manufacturing a scanning type exposure apparatus which projects a pattern formed on a mask onto a substrate by relatively scanning synchronously a first stage on which said mask is mounted and a second stage on which said substrate is mounted, comprising:providing an optical system which is disposed between said first stage and said second stage and forms an image of said mask; providing a detection device which detects information relating to change in the image of said mask; and in response to information relating to change of the image of the mask detected by said detection device, connecting a control device to said detection device and to at least one of said first stage and said second stage, wherein said control device controls a relative position of said mask to said substrate with respect to a direction of a relative scanning of said mask to said substrate, a speed of said relative scanning of said mask to said substrate and an amount of relative rotation of said mask to said substrate with respect to the direction of said relative scanning.