APPARATUS FOR TREATING SUBSTRATE AND METHOD FOR TREATING SUBSTRATE

    公开(公告)号:US20230039663A1

    公开(公告)日:2023-02-09

    申请号:US17865918

    申请日:2022-07-15

    Abstract: The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes a support unit horizontally maintaining a substrate; a laser irradiation unit for irradiating the substrate with a laser; a photo-detector for detecting an energy of a reflective light reflected from the substrate among a laser irradiated on the substrate; and a processor, and wherein the processor irradiates a first laser of a first output to the substrate, and sets a second output of a second laser for irradiating the substrate to heat the substrate, based on an energy of a first reflective light reflected from the substrate by the first laser detected from the photo-detector.

    APPARATUS AND METHOD OF PROCESSING SUBSTRATE

    公开(公告)号:US20240035166A1

    公开(公告)日:2024-02-01

    申请号:US18108002

    申请日:2023-02-09

    CPC classification number: C23F1/00

    Abstract: A method of processing a substrate includes an etchant supplying operation of supplying an etchant to a substrate; a puddle operation of, by rotating the substrate at a first rotational speed, forming a liquid film of the etchant supplied to the substrate in a puddle shape; and a thickness adjusting operation of changing a rotational speed of the substrate to a rotational speed different from the first rotational speed to adjust a thickness of the liquid film of the etchant. Using the method, dispersion of the etching rate may be effectively controlled.

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