SYSTEM FOR SUPPLYING PHOTORESIST AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE USING THE SAME

    公开(公告)号:US20230115351A1

    公开(公告)日:2023-04-13

    申请号:US17804732

    申请日:2022-05-31

    Abstract: A photoresist supplying system includes a pump that includes a first tube phragm that stores a photoresist and a filter that filters the photoresist, a second tube phragm that stores the photoresist and is disposed outside the pump, where the second tube phragm transfers the photoresist to the first tube phragm, a storage unit that stores the photoresist, where the storage unit provides the photoresist to the second tube phragm, and a tube phragm drive unit that is connected to the first tube phragm. The tube phragm drive unit adjusts an interior volume of the first tube phragm and applies a pressure to a flexible outer wall of the first tube phragm to transfer the photoresist from the first tube phragm to a nozzle installed in the chamber. At least a part of the photoresist stored in the first tube phragm is transferred to the second tube phragm.

    System for supplying photoresist and method for fabricating semiconductor device using the same

    公开(公告)号:US11733616B2

    公开(公告)日:2023-08-22

    申请号:US17804732

    申请日:2022-05-31

    CPC classification number: G03F7/70908

    Abstract: A photoresist supplying system includes a pump that includes a first tube phragm that stores a photoresist and a filter that filters the photoresist, a second tube phragm that stores the photoresist and is disposed outside the pump, where the second tube phragm transfers the photoresist to the first tube phragm, a storage unit that stores the photoresist, where the storage unit provides the photoresist to the second tube phragm, and a tube phragm drive unit that is connected to the first tube phragm. The tube phragm drive unit adjusts an interior volume of the first tube phragm and applies a pressure to a flexible outer wall of the first tube phragm to transfer the photoresist from the first tube phragm to a nozzle installed in the chamber. At least a part of the photoresist stored in the first tube phragm is transferred to the second tube phragm.

    Wafer processing apparatus and wafer processing method using the same apparatus

    公开(公告)号:US11456195B2

    公开(公告)日:2022-09-27

    申请号:US16751882

    申请日:2020-01-24

    Abstract: A wafer processing apparatus is provided. The apparatus includes: a heating plate through which vacuum ports are formed; a plurality of temperature sensors; a heating device configured to heat the heating plate; first and second power supplies; temperature controllers to generate first and second feedback temperature control signals for controlling power output power supplies based on measurement values generated by the temperature sensors; an electronic pressure regulator configured to provide vacuum pressure for fixing a wafer to the plurality of vacuum ports; and a wafer chucking controller configured to control the electronic pressure regulator, and generate a feedback pressure control signal for controlling the electronic pressure regulator based on the first and second feedback temperature control signals.

    Apparatus for transferring wafer, method for transferring wafer using the same with three sensors

    公开(公告)号:US11315817B2

    公开(公告)日:2022-04-26

    申请号:US16906820

    申请日:2020-06-19

    Abstract: An apparatus for transferring a wafer includes a main body, a first support installed in the main body, a sensor support fixed to the first support, a finger member slidably installed along the first support to transfer the wafer and positioned at a lower level than the sensor support, three sensors each including a light emitter installed on the first support and a light receiver installed on the sensor support, the three sensors respectively configured to detect three points of an edge of the wafer seated on the finger member, and a controller connected to the three sensors, wherein the controller is configured to determine whether any of the three points of the edge of the wafer is detected from a notch of the wafer based on signals received from the sensors.

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