Device manufacturing method

摘要

A device manufacturing method, wherein a substrate (W) is provided, wherein a projection beam of radiation (PB) is provided using an illumination system (IL), wherein patterning means (MA) are used to impart the projection beam (PB) with a pattern in its cross-section, wherein the patterned beam of radiation (PB) is projected subsequently onto a number outer target portions (CO) of the substrate (W) before the patterned beam is projected onto inner target portions (CI) of the substrate (W), wherein each subsequent outer target portion (CO i+1 ) is spaced-apart from the outer target portion (COi) preceding that subsequent outer target portion (CO i+1 ).