FLUID HANDLING STRUCTURE FOR LITHOGRAPHIC APPARATUS
A fluid handling structure configured to confine immersion fluid to a region of a lithographic apparatus, comprising: an aperture formed therein; a first part; and a second part. At least one of the first part and the second part defines a surface adapted for the extraction of the immersion fluid fr...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A fluid handling structure configured to confine immersion fluid to a region of a lithographic apparatus, comprising: an aperture formed therein; a first part; and a second part. At least one of the first part and the second part defines a surface adapted for the extraction of the immersion fluid from the region. The fluid handling structure is adapted to provide a fluid flow into or out of the surface thereof and movement of the first part relative to the second part is effective to change a position of the fluid flow into or out of the surface relative to the aperture. One of the first part and second part comprises at least one through-hole for the fluid flow there through and the other of the first part and second part comprises at least one opening for the fluid flow there through. |
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