Acta Photonica Sinica, Volume. 51, Issue 6, 0611002(2022)

Deep Learning Based Method for Automatic Focus Detection in Digital Lithography

Jupu YANG1,2, Jialin DU1,2, Fanxing LI1, Qingrong CHEN1, Simo WANG1,2, and Wei YAN1、*
Author Affiliations
  • 1Institute of Environmental Optics,Institute of Optics and Electronics,Chinese Academy of Sciences,Chengdu 610209,China
  • 2University of Chinese Academy of Sciences,Beijing 100049,China
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    References(15)

    [4] WANG Jian. Study on high precision measurement technology of wafer focus based on polarization modulation[D], 7-10(2021).

    [5] SUN Yuwen, LI Shiguang, ZONG Mingcheng. Nanoscale focusing and leveling measurement technology based on optical spatial split[J]. Acta Optica Sinica, 36, 0512002(2016).

    [8] FENG Jinhua, TANG Yan, XIE Zhongye et al. Coaxial focusing method based on differential modulation evaluation[J]. Acta Optica Sinica, 41, 0612001(2021).

    [9] PAN Ping. Study on differential astigmatism detection technology[D], 1-5(2010).

    [10] LIANG Fengcha. Static characteristics of auto-focusing servo system based on critical angle method for laser direct writing[J]. Electronics Optics & Control, 18, 59-62(2011).

    [11] ZONG Yonghong, ZHOU Changhe, MA Jianyong et al. Optimized design of leveling and focusing servo control system[J]. Acta Optica Sinica, 37, 0122001(2017).

    [12] WANG Guanjun. Research on auto-focusing method of photoelectric measurement equipmet based on image processing[D], 100-104(2016).

    [15] SUN Jie, YUAN Yuehui, WANG Chuanyong. Comparison and analysis of algorithms for digital image processing in autofocusing criterion[J]. Acta Optica Sinica, 27, 35-39(2007).

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    Jupu YANG, Jialin DU, Fanxing LI, Qingrong CHEN, Simo WANG, Wei YAN. Deep Learning Based Method for Automatic Focus Detection in Digital Lithography[J]. Acta Photonica Sinica, 2022, 51(6): 0611002

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    Paper Information

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    Received: Jan. 6, 2022

    Accepted: Feb. 23, 2022

    Published Online: Sep. 23, 2022

    The Author Email: Wei YAN (yanwei@ioe.ac.cn)

    DOI:10.3788/gzxb20225106.0611002

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