Patent ID: 6341011
Filing Date: 2002-01-22
Classification: G03F

Abstract:
A method for making an exposure apparatus, comprising the steps of:providing a projection optical system configured to project illuminating light; providing a substrate stage configured to support a substrate to be exposed by said illuminating light, said substrate stage including a first reference mark; providing a mask stage configured to support a mask including a mask pattern to be projected onto said substrate by said projection optical system, said mask further including a second reference mark, said second reference mark being integrally formed with said mask pattern; configuring said projection optical system to project light to produce a projected image corresponding to second reference mark, said projected image to become incident on said substrate stage; providing an adjustment mechanism configured to adjust the position of said projected image on said substrate stage by adjusting said projection optical system based on a positional relationship between said projected image and said first reference mark; providing a sensor configured to detect said positional relationship; providing a control device configured to control said adjustment mechanism based on said positional relationship to effect a predetermined positional relationship between said projected image and said first reference mark; and arranging said projection optical systems, said substrate stage, said mask stage, said adjustment mechanism, said sensor, and said control device to make an exposure apparatus.