Patent ID: 6736928
Filing Date: 2004-05-18
Classification: G03F

Abstract:
An exposure apparatus for sequentially performing projection exposure via a projection optical unit of device patterns provided in a pattern effective area of a photo-mask onto shot areas of a wafer, said apparatus comprising:an illumination unit for collectively illuminating the entire pattern effective area of the photo-mask, which area is contained within the illumination range of said illumination unit, with exposure light; a mask stage that moves the photo-mask in the mask scanning direction within the illumination range; a wafer stage that moves the wafer in accordance with a projection range in which the pattern effective area of the photo-mask is projected in one of the mask scanning direction and a direction opposite to the mask scanning direction; and control means for synchronizing and controlling the relative movements of said mask stage and said wafer stage while keeping an entire shot area of the wafer contained within the projection range, in which device patterns illuminated collectively are projected via the projection optical unit.