Environmental system including a transport region for an immersion lithography apparatus
First Claim
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1. A method of making a system for a liquid immersion lithography apparatus in which a wafer is exposed through a liquid filled in a space between an optical member and the wafer, the method comprising:
- providing a liquid collection member configured to surround the optical member; and
attaching a liquid-permeable member to the liquid collection member through which the liquid is collected from a gap between the liquid-permeable member and a surface of the wafer opposite to the liquid-permeable member, the liquid-permeable member surrounding the optical member.
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Abstract
A lithographic projection apparatus that is arranged to project a pattern from a patterning device onto a substrate using a projection system has a liquid supply system arranged to supply a liquid to a space between the projection system and the substrate. The apparatus also includes a liquid collecting system having a liquid collection member having a liquid-permeable member through which a liquid is collected from a surface of an object opposite to the liquid collection member.
180 Citations
26 Claims
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1. A method of making a system for a liquid immersion lithography apparatus in which a wafer is exposed through a liquid filled in a space between an optical member and the wafer, the method comprising:
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providing a liquid collection member configured to surround the optical member; and attaching a liquid-permeable member to the liquid collection member through which the liquid is collected from a gap between the liquid-permeable member and a surface of the wafer opposite to the liquid-permeable member, the liquid-permeable member surrounding the optical member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method used in a liquid immersion lithography apparatus, the method comprising:
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placing a wafer to be exposed under an optical member with a space therebetween which is filled with a liquid; and collecting the liquid, through a liquid-permeable member of a liquid collection member configured to surround the optical member, from a gap between the liquid-permeable member and a surface of the wafer opposite to the liquid-permeable member, the liquid-permeable member being configured to surround the optical member. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification