Patent ID: 6699639
Filing Date: 2004-03-02
Classification: B82Y,G03F,H01J

Abstract:
A method for projection-exposing a pattern, defined by a pattern original and comprising multiple pattern portions for individual exposure, onto multiple die locations on a substrate, the method comprising:(a) directing an energy beam to illuminate a pattern portion of the pattern defined by the pattern original and form a patterned beam from the energy beam passing through and propagating downstream of the illuminated pattern portion, the patterned beam carrying an image of the illuminated pattern portion, and directing the patterned beam to form the image of the illuminated pattern portion on the substrate; (b) repeating step (a), in a first exposure order, for each of the remaining pattern portions of the pattern so as to expose an image, comprising stitched-together images of the pattern portions, of the pattern at a first die location on the substrate, thereby forming a first die of the pattern at the first die location; and (c) repeating steps (a) and (b), wherein step (b) is performed in a second exposure order different from the first exposure order, so as to expose an image of the pattern at a second die location on the substrate, thereby forming a second die of the pattern at the second die location.