Lithographic apparatus and device manufacturing method utilizing movement of clean air to reduce contamination
First Claim
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1. A lithographic apparatus comprising:
- a substrate table that supports a substrate;
a substrate handler that moves the substrate relative to the substrate table, the substrate handler being adapted to load substrates to be exposed on to and unload substrates that have been exposed from the substrate table before and after an exposure, respectively, anda clean gas supply system that supplies a clean gas by filtering a fluctuating air volume caused due to a movement of the substrate handler carrying the substrates to at least one location at which a substrate is located during the exposure, wherein the clean gas supply system is moveably mounted.
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Abstract
A lithographic apparatus comprises a substrate table that supports a substrate and a substrate handler that moves the substrate relative to the substrate table. The substrate handler is adapted to load substrates on to and unload substrates from the substrate table before and after exposure. Also, a clean gas supply system supplies a clean gas to at least one location at which the substrate is located. The clean gas supply system is moveably mounted. A device manufacturing method utilizing the lithographic apparatus can be used to manufacture at least one of a flat panel display and an integrated circuit device.
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Citations
35 Claims
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1. A lithographic apparatus comprising:
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a substrate table that supports a substrate; a substrate handler that moves the substrate relative to the substrate table, the substrate handler being adapted to load substrates to be exposed on to and unload substrates that have been exposed from the substrate table before and after an exposure, respectively, and a clean gas supply system that supplies a clean gas by filtering a fluctuating air volume caused due to a movement of the substrate handler carrying the substrates to at least one location at which a substrate is located during the exposure, wherein the clean gas supply system is moveably mounted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 35)
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26. A device manufacturing method, comprising:
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conditioning a radiation beam; modulating the radiation beam; supporting a first substrate on a substrate table; projecting the modulating radiation beam onto a target portion of the first substrate, moving the first substrate relative to the substrate table, including loading the first substrate on to and unloading the first substrate from the substrate table before and after an exposure, respectively; and supplying a clean gas by filtering a fluctuating air volume caused due to the loading and the unloading to at least one location at which the first substrate is located during the exposure, wherein the clean gas is supplied by a moveably mounted clean gas system. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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Specification