EUV transmissive membrane, method of use thereof, and exposure method

Provided is an EUV transmissive membrane including a main layer having an EUV transmittance of 85% or more at a wavelength of 13.5 nm, wherein the main layer is composed of a monolayer or a composite layer of two or more layers, and a protective layer that covers at least one side of the main layer,...

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Bibliographische Detailangaben
Hauptverfasser: CHAEN, HIROKI, GORIKI, NAOKI, TANIMURA, TAKASHI, KASHIWAYA, TOSHIKATSU
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:Provided is an EUV transmissive membrane including a main layer having an EUV transmittance of 85% or more at a wavelength of 13.5 nm, wherein the main layer is composed of a monolayer or a composite layer of two or more layers, and a protective layer that covers at least one side of the main layer, wherein the protective layer includes at least one selected from the group consisting of amorphous carbon, Cu, Al, and an organic resist as a main component.