Chinese Journal of Lasers, Volume. 40, Issue 12, 1208005(2013)

Novel Coaxial Focusing Method Based on Interference

Li Guang1,2,3、*, Zhu Jiangping2,3, Chen Mingyong2, Zhao Lixin2, Hu Song2, and Duan Xuanming1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
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    References(10)

    [1] [1] Yao Hanmin, Hu Song, Xing Tingwen. Optical Projection Lithography Micromachining Technology[M]. Beijing: Beijing University of Technology Press, 2006. 60-80.

    [2] [2] Zeng Aijun, Wang Xiangchao, Xu Deyan. Progess in focus and level sensor for projection lithography system[J]. Laser & Optoelectronics Progress, 2006, 41(7): 24-30.

    [3] [3] Van Der Werf, J E. Optical focus and level sensor for wafer steppers[J]. Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, 1992, 10(2): 735-740.

    [4] [4] Y Oshida, M Tanaka, T Tanimoto, et al.. Chip leveling and focusing with laser interferometry[C]. SPIE, 1990, 1264: 244-251.

    [5] [5] M Watanabe, Y Oshida, Y Nakayama, et al.. Focusing and leveling based on wafer surface profile detection with interferometry for optical lithography[C]. SPIE, 1994, 2197: 980-989.

    [6] [6] W Yan, Y Yang, W F Chen, et al.. Moiré-based focusing and leveling scheme for optical projection lithography[J]. Appl Opt, 2010, 49(31): 5959-5963.

    [7] [7] X Z Dong, Z S Zhao, X M Duan. Improving spatial resolution and reducing aspect ratio in multiphoton polymerization nanofabrication[J]. Appl Phys Lett, 2008, 92(9): 091113.

    [8] [8] Su Xianyu, Li Jitao. Information Optics[M]. Sichuan: Sichuan University Press, 1995. 300-310.

    [9] [9] Qian Xiaofan, Rao Fan, Li Xinghua, et al.. Accurate least-squares phase unwrapping algorithm[J]. Chinese J Lasers, 2012, 39(2): 0209001.

    CLP Journals

    [1] Tong Junmin, Zhou Shaolin, Zhao Lixin, Hu Song. Angular Measurement Using Moire Interferometry for Alignment of Proximity Lithography[J]. Chinese Journal of Lasers, 2014, 41(12): 1208001

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    Li Guang, Zhu Jiangping, Chen Mingyong, Zhao Lixin, Hu Song, Duan Xuanming. Novel Coaxial Focusing Method Based on Interference[J]. Chinese Journal of Lasers, 2013, 40(12): 1208005

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    Paper Information

    Category: measurement and metrology

    Received: May. 2, 2013

    Accepted: --

    Published Online: Oct. 20, 2013

    The Author Email: Guang Li (liguangyuan211@mails.ucas.ac.cn)

    DOI:10.3788/cjl201340.1208005

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