Patent ID: 8917378
Filing Date: 2014-12-23
Classification: G03F

Abstract:
1. An exposure method comprising: a pattern-arranging step of arranging, in a predetermined direction, pattern areas with respect to a plurality of projection optical systems, respectively, which are arranged at an interval and each of which has a magnifying magnification, the pattern areas being formed on a mask substrate and having area widths each of which is smaller than the interval of the projection optical systems and greater than a width obtained by dividing an exposure width of one of the projection optical systems by the magnifying magnification; and an exposure step of successively transferring onto a substrate a projected image, projected by an associated projection optical system among the projection optical systems, of a first pattern provided in a first partial pattern area in each of the pattern areas and a projected image, projected by the associated projection optical system, of a second pattern provided in a second partial pattern area in each of the pattern areas, the second partial pattern area having a partial area which is overlaid with the first partial pattern area and other area which is other than the partial area and is different from the first partial pattern area in the predetermined direction in each of the pattern areas, wherein a part of the first pattern and a part of the second pattern are formed on an identical position on the mask substrate, and the part of the first pattern and the part of the second pattern are transferred onto an identical position on the substrate.