MIRROR FOR AN ILLUMINATION OPTICAL UNIT OF A PROJECTION EXPOSURE APPARATUS COMPRISING A SPECTRAL FILTER IN THE FORM OF A GRATING STRUCTURE AND METHOD FOR PRODUCING A SPECTRAL FILTER IN THE FORM OF A GRATING STRUCTURE ON A MIRROR

A mirror for an illumination optical unit of a projection exposure apparatus comprises a spectral filter in the form of a grating structure, wherein the grating structure has a maximum edge steepness in the range of 15° to 60°.

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Bibliographische Detailangaben
Hauptverfasser:	Jalics, Christof, Meisch, Tobias, Kierey, Holger, Sandner, Andreas, Schuster, Fabian
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	A mirror for an illumination optical unit of a projection exposure apparatus comprises a spectral filter in the form of a grating structure, wherein the grating structure has a maximum edge steepness in the range of 15° to 60°.