Mr. Guoqi Li Profile

Guoqi Li

at Shanghai Institute of laser technology

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 16 December 2022 Paper

Laser marking micro ID for wafer identification

Lingling Zhang, Tianjiao Shu, Guoqi Li, Yuanchao Du, Yuan Chen, Jie Zhang

Proceedings Volume 12501, 125011D (2022) https://doi.org/10.1117/12.2656633

KEYWORDS: Semiconducting wafers, Laser marking, Silicon, Optical character recognition, Image compression, Polishing, Pulsed laser operation, Manufacturing, Laser cutting, Technology

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Proceedings Article | 16 December 2022 Paper

Study on the process of silicon wafer marking with 532nm Nd: YVO4 laser

Tianjiao Shu, Lingling Zhang, Yuanchao Du, Guoqi Li, Yuan Chen

Proceedings Volume 12501, 125011F (2022) https://doi.org/10.1117/12.2656643

KEYWORDS: Laser marking, Semiconducting wafers, Laser stabilization, Neodymium, Semiconductor lasers, Silicon, Pulsed laser operation, Laser systems engineering, Power meters, Laser applications

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Proceedings Article | 31 August 2021 Paper

Study on the process of laser marking for silicon wafer by 1060nm-MOPA laser

Tianjiao Shu, Lingling Zhang, Guoqi Li, Yuanchao Du, Yuan Chen, Xuanjun Zhang, Jie Zhang

Proceedings Volume 11907, 119072C (2021) https://doi.org/10.1117/12.2603120

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Proceedings Article | 31 August 2021 Paper

Pulse shape controlled MOPA fiber laser for marking of Si wafer

Lingling Zhang, Tianjiao Shu, Guoqi Li, Yuan Chen, Yuanchao Du, Xuanjun Zhang, Jie Zhang

Proceedings Volume 11907, 119072A (2021) https://doi.org/10.1117/12.2603114

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Proceedings Article | 31 August 2021 Paper

Processing study of laser marking on Si wafer

Lingling Zhang, Tianjiao Shu, Guoqi Li, Yuanchao Du, Yuan Chen, Xuanjun Zhang, Jie Zhang

Proceedings Volume 11907, 1190725 (2021) https://doi.org/10.1117/12.2603103

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Proceedings Article | 31 August 2021 Paper

Study the effect of single pulse energy on surface roughness of aluminum alloy by laser marking

Yuanchao Du, Lingling Zhang, Tianjiao Shu, Guoqi Li, Yuan Chen, Wenjie Yang, Jie Zhang, Xuanjun Zhang

Proceedings Volume 11907, 119070Y (2021) https://doi.org/10.1117/12.2602512

KEYWORDS: Laser marking, Aluminum, Surface roughness, Pulsed laser operation, Laser applications, Spherical lenses, Particles, Scanning electron microscopy, Fiber lasers, Oxidation

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Proceedings Article | 22 October 2020 Paper

A study of laser direct-part marking of 2D code on the aviation aluminum alloy part

Lingling Zhang, Yuan Chen, Guoqi Li

Proceedings Volume 11546, 115460M (2020) https://doi.org/10.1117/12.2573435

KEYWORDS: Laser marking, Aluminum, Laser applications, Metals, Visibility, Aerospace engineering, Laser sources

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Showing 5 of 7 publications

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