Optical element, exposure apparatus based on the use of the same, exposure method, and method for producing microdevice

Optical element, exposure apparatus based on the use of the same, exposure method, and method for producing microdevice

An optical element includes a base material, a liquid-repellent member provided on at least a part of a surface of the base material, and a light-reducing member provided between the base material and the liquid-repellent member to protect the liquid-repellent member from radiation of light by reduc...

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Hauptverfasser: Kokubun, Takao, Hoshika, Ryuichi
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creator Kokubun, Takao
Hoshika, Ryuichi
description An optical element includes a base material, a liquid-repellent member provided on at least a part of a surface of the base material, and a light-reducing member provided between the base material and the liquid-repellent member to protect the liquid-repellent member from radiation of light by reducing the light. The optical element is usable for a liquid immersion exposure apparatus for exposing a substrate through a liquid. It is possible to avoid any inflow of the liquid in a liquid immersion area into an unexpected place via the optical element.
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The optical element is usable for a liquid immersion exposure apparatus for exposing a substrate through a liquid. It is possible to avoid any inflow of the liquid in a liquid immersion area into an unexpected place via the optical element.</abstract><oa>free_for_read</oa></addata></record>
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title Optical element, exposure apparatus based on the use of the same, exposure method, and method for producing microdevice
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