Method of forming thin film and method of modifying surface of thin film

    公开(公告)号:US11551912B2

    公开(公告)日:2023-01-10

    申请号:US17151219

    申请日:2021-01-18

    Inventor: Takashi Yoshida

    Abstract: A method including: a plasma contact step including supplying treatment gas including a reactant gas into a chamber, activating a reactant component included in the treatment gas by generating plasma from the reactant component by applying high-frequency power, and bringing the treatment gas including the reactant component activated into contact with the surface of the substrate, in which in the plasma contact step, a first plasma generation condition in which stable plasma is generated by applying high-frequency power of a first power level while supplying treatment gas of a first concentration is changed to a second plasma generation condition in which a desired thin film is obtained by performing at least one of increasing the high-frequency power to a second power level and gradually decreasing the treatment gas to a second concentration, and of gradually increasing the high-frequency power to the second power level, and abnormal electrical discharge is suppressed.

    Substrate processing method
    10.
    发明授权

    公开(公告)号:US10770257B2

    公开(公告)日:2020-09-08

    申请号:US16040755

    申请日:2018-07-20

    Abstract: Examples of a substrate processing method include subjecting a substrate placed on a susceptor to plasma processing, applying power to an RF electrode facing the susceptor for only a predetermined static electricity removal time to generate plasma, thereby reducing an amount of charge of the substrate, measuring a self-bias voltage of the RF electrode while susceptor pins are made to protrude from a top surface of the susceptor and lift up the substrate, and by a controller, shortening the static electricity removal time when the self-bias voltage has a positive value, and lengthening the static electricity removal time when the self-bias voltage has a negative value.

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