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.

    METHOD OF ETCHING THIN FILM AND SUBSTRATE PROCESSING APPARATUS

    公开(公告)号:US20230377911A1

    公开(公告)日:2023-11-23

    申请号:US18192820

    申请日:2023-03-30

    Inventor: Won-Geun KIM

    CPC classification number: H01L21/6708 H01L21/67115 H01L21/68792

    Abstract: A method of etching a thin film includes: a first puddling operation of forming a first puddle of a chemical solution on a substrate by supplying and spreading the chemical solution on the substrate on which a thin film is formed; a first etching operation of partially etching the thin film using the chemical solution on the substrate; a first rinsing operation of supplying the chemical solution onto the substrate to rinse off the first puddle of the chemical solution and apply the chemical solution onto the substrate; a second puddling operation of forming a second puddle of the chemical solution on the substrate; a second etching operation of partially etching the thin film; and a second rinsing operation of supplying the chemical solution onto the substrate to rinse off the second puddle of the chemical solution on the substrate and apply the chemical solution on to the substrate.

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