EUV photomask and manufacturing method of the same

A photomask and a method of manufacturing a photomask are provided. According to an embodiment, a method includes: providing a substrate; depositing a reflective layer over the substrate; depositing a capping layer over the reflective layer; depositing an absorption layer over the capping layer; and...

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Bibliographische Detailangaben
Hauptverfasser: Hsu, Ching-Hsiang, Hsu, Feng Yuan, Shen, Tran-Hui
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A photomask and a method of manufacturing a photomask are provided. According to an embodiment, a method includes: providing a substrate; depositing a reflective layer over the substrate; depositing a capping layer over the reflective layer; depositing an absorption layer over the capping layer; and treating the reflective layer by a laser beam to form a border region. The borderer region has a reflectivity less than about 0.1%.