Exposure method, substrate stage, exposure apparatus, and device manufacturing method
First Claim
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1. A substrate stage apparatus used in a liquid immersion exposure in which a substrate is exposed by projecting an image of a pattern onto the substrate via a projection optical system and a liquid, comprising:
- a movable stage which holds the substrate, the movable stage including a substrate holder to hold the substrate, a flat portion, and an inner side surface provided below the flat portion,wherein at least a part of the inner side surface includes a surface of a fluoroplastic material,the inner side surface faces an edge of the substrate held by the substrate holder, andat least a part of the surface of the fluoroplastic material of the inner side surface is disposed so as to suppress a flow of the liquid through a first gap between the inner side surface and the edge of the substrate held by the substrate holder.
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Abstract
An exposure apparatus exposes a substrate by projecting a pattern image onto the substrate through a liquid. The exposure apparatus includes a projection optical system by which the pattern image is projected onto the substrate, and a movable member which is movable relative to the projection optical system. A liquid-repellent member, at least a part of a surface of which is liquid-repellent, is provided detachably on the movable member, the liquid-repellent member being different from the substrate.
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Citations
17 Claims
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1. A substrate stage apparatus used in a liquid immersion exposure in which a substrate is exposed by projecting an image of a pattern onto the substrate via a projection optical system and a liquid, comprising:
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a movable stage which holds the substrate, the movable stage including a substrate holder to hold the substrate, a flat portion, and an inner side surface provided below the flat portion, wherein at least a part of the inner side surface includes a surface of a fluoroplastic material, the inner side surface faces an edge of the substrate held by the substrate holder, and at least a part of the surface of the fluoroplastic material of the inner side surface is disposed so as to suppress a flow of the liquid through a first gap between the inner side surface and the edge of the substrate held by the substrate holder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification