Laser Technology, Volume. 49, Issue 3, 328(2025)

Research progress on infrared laser driven extreme ultraviolet lithography source

LYU Tianhao1,2, SONG Yanjie1,3, ZONG Nan1,3,4、*, ZHANG Shenjin1,3,4, BO Yong1,3,4, and PENG Qinjun1,3,4
Author Affiliations
  • 1Key Laboratory of Solid State Laser, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • 2University of Chinese Academy of Sciences, Beijing 100149, China
  • 3Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • 4Institute of Optical Physics and Engineering Technology, Qilu Zhongke, Ji'nan 250000, China
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    A 13.5 nm extreme ultraviolet light source produced by the laser driven plasma is used in today's most advanced lithography machines and chip manufacturing. Generally, a 10.6 μm CO2 gas laser is the driving light of commercial extreme ultraviolet lithography. In the future, solid-state lasers are expected to become a new generation of driving light sources due to their high plug efficiency and strong output power/energy scalability. The physical process of laser-plasma interaction for producing extreme ultraviolet light was summarized. The research progress of 10.6 μm CO2 gas laser 1 μm and 2 μm solid-state lasers in driving plasma to produce extreme ultraviolet light and optical system was reviewed. The advantages of 1 μm and 2 μm solid-state lasers as driving light sources were emphatically discussed. On this basis, the research prospect of infrared laser driven extreme ultraviolet lithography source is prospected.

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    LYU Tianhao, SONG Yanjie, ZONG Nan, ZHANG Shenjin, BO Yong, PENG Qinjun. Research progress on infrared laser driven extreme ultraviolet lithography source[J]. Laser Technology, 2025, 49(3): 328

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    Paper Information

    Category:

    Received: Jun. 12, 2024

    Accepted: Jul. 11, 2025

    Published Online: Jul. 11, 2025

    The Author Email: ZONG Nan (zongnan@mail.ipc.ac)

    DOI:10.7510/jgjs.issn.1001-3806.2025.03.003

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