WET ETCHING EQUIPMENT AND WET ETCHING METHOD
    22.
    发明申请

    公开(公告)号:US20180051378A1

    公开(公告)日:2018-02-22

    申请号:US15534587

    申请日:2016-05-25

    Inventor: Dapeng Xue

    Abstract: Embodiments of the present disclosure disclose a wet etching equipment and a wet etching method. The wet etching equipment includes a metal ion concentration adjusting device configured to adjust the concentration of metal ions in an etching solution, a sprinkler which is connected to the metal ion concentration adjusting device and configured to spray the etching solution. Embodiments of the present disclosure also disclose a wet etching method, comprising steps as follows: adjusting a concentration of metal ions in an etching solution so that an etching rate of a metal to be etched is kept stable; spraying the adjusted etching solution onto the metal to be etched.

    WET ETCHING APPARATUS
    23.
    发明申请

    公开(公告)号:US20170110344A1

    公开(公告)日:2017-04-20

    申请号:US14906866

    申请日:2015-08-14

    Inventor: Dapeng Xue

    Abstract: The present invention provides a wet etching apparatus. The wet etching apparatus comprises: an etching chamber, comprising an etching chamber inlet at a front end and an etching chamber outlet at a rear end, wherein in the etching chamber, a film to be etched on a substrate is subject to etching with an etching liquid; and a decrystallization device, which washes residual etching liquid or etching liquid crystal formed by the etching liquid at the etching chamber inlet and/or etching chamber outlet with a washing liquid. By means of the decrystallization device, residual etching liquid or etching liquid crystal formed by the etching liquid at the etching chamber inlet and the etching chamber outlet can be effectively removed, thus improving operation ratio and cleanness of the apparatus as well as quality of products.

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