Patent ID: 8105765

Claim:
A method of manufacturing a semiconductor device by performing divisional exposure on a plurality of areas on a wafer, through two or more reticles, on each of which a mask pattern region is formed correspondingly to each of the plurality of areas, by arranging the reticles such that the mask patterns on the two or more reticles are joined together at a joining position along one side of the mask patterns, wherein a center of at least one of the two or more reticles is offset from a center of the mask pattern formed on the at least one of the two or more reticles toward the one side of the mask pattern corresponding to the joining position, the method comprising the steps of: arranging the reticles such that an outer most periphery of a field circle of exposure light incident on the wafer aligns with at least one side of the mask pattern region formed in the reticle; and exposing, to exposure light, the wafer, through the reticles arranged in the arranging step.