Invention Publication
- Patent Title: NANOTUBE-BASED PELLICLE FOR EXTREME ULTRAVIOLET LITHOGRAPHY AND RELATED MANUFACTURING METHOD
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Application No.: US18411594Application Date: 2024-01-12
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Publication No.: US20240280893A1Publication Date: 2024-08-22
- Inventor: Hyeong Keun KIM , Seul Gi KIM
- Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
- Applicant Address: KR Seongnam-si
- Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
- Current Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
- Current Assignee Address: KR Seongnam-si
- Priority: KR 20230020459 2023.02.16
- Main IPC: G03F1/64
- IPC: G03F1/64

Abstract:
Proposed is a pellicle for extreme ultraviolet (EUV) lithography based on a nanotube and having good optical properties, thermal stability, mechanical stability and chemical durability. The pellicle may include a frame having an opening formed in a central portion, and a pellicle membrane supported by the frame and covering the opening. The pellicle membrane may be formed in a reticular structure based on nanotubes, and include a coating layer formed by coating at least part of the nanotubes with a metal or metal compound. The metal or metal compound may be based on at least one of Mo, Si, Zr, Nb, Ru, Y, La, or Ce, or any alloy thereof.
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