Pellicle fabrication methods and structures thereof

A method for fabricating a pellicle includes forming a first dielectric layer over a back surface of a substrate. After forming the first dielectric layer, and in some embodiments, a graphene layer is formed over a front surface of the substrate. In some examples, after forming the graphene layer, t...

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Bibliographische Detailangaben
Hauptverfasser: Lin, Chih-Cheng, Lin, Yun-Yue, Lee, Hsin-Chang, Yen, Anthony, Lo, Wei-Jen, Chen, Hsuan-Chen, Ku, Yao-Ching, Lin, Chin-Hsiang, Chien, Mark
Format: Patent
Sprache:eng
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Zusammenfassung:A method for fabricating a pellicle includes forming a first dielectric layer over a back surface of a substrate. After forming the first dielectric layer, and in some embodiments, a graphene layer is formed over a front surface of the substrate. In some examples, after forming the graphene layer, the first dielectric layer is patterned to form an opening in the first dielectric layer that exposes a portion of the back surface of the substrate. Thereafter, while using the patterned first dielectric layer as a mask, an etching process may be performed to the back surface of the substrate to form a pellicle having a pellicle membrane that includes the graphene layer.