| 摘要 |
An exposure apparatus which projects and transfers a pattern formed on a mask to a substrate using exposure light includes a stage, an optical system, a gas stream forming mechanism which forms a stream of an inert gas in an optical path space including a space which is located between the stage and the optical system and through which the exposure light passes, a member which forms a predetermined space between the optical path space and a peripheral space outside the optical path space in the exposure apparatus, and a gas supply mechanism which supplies the inert gas into the predetermined space. <IMAGE>
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