METHOD FOR PRODUCING A REFLECTIVE OPTICAL ELEMENT AND REFLECTIVE OPTICAL ELEMENT

METHOD FOR PRODUCING A REFLECTIVE OPTICAL ELEMENT AND REFLECTIVE OPTICAL ELEMENT

For increasing reflectivity a reflective optical element for the extreme ultraviolet wavelength range consists of at least two upper units, in which each upper unit (B1-B5) has a plurality of lower units, for example reflective optical elements in the form of mirror arrays. A method for producing th...

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1. Verfasser: ENKISCH, Hartmut
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Sprache:eng ; fre ; ger
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APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
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creator ENKISCH, Hartmut
description For increasing reflectivity a reflective optical element for the extreme ultraviolet wavelength range consists of at least two upper units, in which each upper unit (B1-B5) has a plurality of lower units, for example reflective optical elements in the form of mirror arrays. A method for producing the reflective optical element includes: determination of incidence angles and incidence angle bandwidths occurring during operation above the surface of each upper unit (B1-B5); and application of a reflective coating to each upper unit (B1-B5), adapted to the incidence angles and incidence angle bandwidths respectively determined above the surface of each upper unit. This is particularly suitable for producing reflective optical elements embodied as field facet mirrors, particularly in the form of microelectromechanical mirror arrays, for an EUV lithography device.
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language eng ; fre ; ger
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subjects APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
title METHOD FOR PRODUCING A REFLECTIVE OPTICAL ELEMENT AND REFLECTIVE OPTICAL ELEMENT
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