Lithographic apparatus and device manufacturing method
First Claim
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1. A lithographic projection apparatus comprising:
- an illumination system arranged to condition a radiation beam;
a support structure configured to hold a patterning device, the patterning device being capable of imparting the radiation beam with a pattern;
a substrate table configured to hold a substrate;
a projection system arranged to project the patterned radiation beam onto a target portion of the substrate;
a liquid supply system configured to provide a liquid to a space between the projection system and the substrate, the liquid supply system comprising a member extending along at least part of the boundary of the space; and
a liquid seal device configured to form a liquid seal between the member and the substrate.
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Abstract
A lithographic projection apparatus wherein a liquid supply system provides a space between a projection system and a substrate with liquid. The liquid supply system comprises a member. A liquid seal is formed between the member and the substrate by a flow of liquid. In an embodiment, the liquid seal is formed by a flow of liquid from an inlet to an outlet of the member.
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Citations
48 Claims
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1. A lithographic projection apparatus comprising:
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an illumination system arranged to condition a radiation beam;
a support structure configured to hold a patterning device, the patterning device being capable of imparting the radiation beam with a pattern;
a substrate table configured to hold a substrate;
a projection system arranged to project the patterned radiation beam onto a target portion of the substrate;
a liquid supply system configured to provide a liquid to a space between the projection system and the substrate, the liquid supply system comprising a member extending along at least part of the boundary of the space; and
a liquid seal device configured to form a liquid seal between the member and the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A lithographic projection apparatus comprising:
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an illumination system arranged to condition a radiation beam;
a support structure configured to hold a patterning device, the patterning device being capable of imparting the radiation beam with a pattern;
a substrate table configured to hold a substrate;
a projection system arranged to project the patterned radiation beam onto a target portion of the substrate;
a liquid supply system configured to provide a liquid to a space between the projection system and the substrate, the liquid supply system comprising a member extending along at least part of the boundary of the space, wherein the member comprises a liquid inlet located on a surface of the member which faces the substrate. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A device manufacturing method comprising:
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providing a liquid to a space between a projection system of a lithographic apparatus and a substrate, the space being bounded at least in part by a member;
forming a liquid seal between the substrate and the member; and
projecting a patterned radiation beam, using the projection system, through the liquid onto a target portion of the substrate. - View Dependent Claims (43, 44, 45)
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46. A device manufacturing method comprising:
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providing a liquid to a space between a projection system of a lithographic apparatus and a surface of the substrate, the liquid being provided via a liquid inlet provided on a member, the liquid inlet facing the surface of the substrate; and
projecting a patterned radiation beam, using the projection system, through the liquid onto a target portion of the substrate. - View Dependent Claims (47, 48)
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Specification