APPARATUS AND METHOD FOR AVOIDING A DEGRADATION OF AN OPTICAL USED SURFACE OF A MIRROR MODULE, PROJECTION SYSTEM, ILLUMINATION SYSTEM AND PROJECTION EXPOSURE APPARATUS

Mirror module for a projection exposure apparatus that includes an optical used surface, an optical measurement surface, a measurement apparatus for determining the degradation state of the measurement surface, characterized in that: the mirror module comprises a temperature control apparatus config...

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Bibliographic Details
Main Authors STORM, Arnoldus Jan, KALLER, Julian, BECKER, Moritz
Format Patent
LanguageEnglish
Published 26.09.2024
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Summary:Mirror module for a projection exposure apparatus that includes an optical used surface, an optical measurement surface, a measurement apparatus for determining the degradation state of the measurement surface, characterized in that: the mirror module comprises a temperature control apparatus configured such that the temperature of the optical measurement surface is lower than the temperature of the optical used surface.
Bibliography:Application Number: US202418732005