EQUIPMENT CLEANING APPARATUS AND METHOD
    11.
    发明申请

    公开(公告)号:US20190224723A1

    公开(公告)日:2019-07-25

    申请号:US15879677

    申请日:2018-01-25

    Abstract: Embodiments described herein relate to a cleaning device and methods for cleaning an object. In one embodiment, the object is cleaned by moving a clean head along a surface of the object. Supercritical carbon dioxide fluid is delivered by supercritical carbon dioxide fluid vessel to the surface of the object. The supercritical carbon dioxide fluid and contamination material are removed from the object by a vacuum pump to a detector. One or more measurements of the contamination material are determined by the detector. Samples of the contamination material are collected by a collector. A contamination level of the surface of the object is determined by an analyzer.

    METHOD AND APPARATUS FOR DETECTION OF PARTICLE SIZE IN A FLUID

    公开(公告)号:US20230060205A1

    公开(公告)日:2023-03-02

    申请号:US17888277

    申请日:2022-08-15

    Abstract: Examples disclosed herein generally relate to systems and methods for detecting the size of a particle in a fluid. In one example, a system for imaging a particle includes a first imaging device. The first imaging device includes a lens and a digital detector. The system further includes a laser source. He laser source is configured to emit a first laser beam and a second laser beam. The digital detector is configured to accumulate a metric of an intensity of an accumulated light that passes through the lens. The accumulated light is scattered from the particle. The accumulated light includes light from the first laser beam and the second laser beam.

    ENDPOINT DETECTION FOR A CHAMBER CLEANING PROCESS

    公开(公告)号:US20180057935A1

    公开(公告)日:2018-03-01

    申请号:US15684677

    申请日:2017-08-23

    Abstract: Embodiments of the present invention provide an apparatus and methods for detecting an endpoint for a cleaning process. In one example, a method of determining a cleaning endpoint includes performing a cleaning process in a plasma processing chamber, directing an optical signal to a surface of a shadow frame during the cleaning process, collecting a return reflected optical signal reflected from the surface of the shadow frame, determining a change of reflectance intensity of the return reflected optical signal as collected, and determining an endpoint of the cleaning process based on the change of the reflected intensity. In another example, an apparatus for performing a plasma process and a cleaning process after the plasma process includes an optical monitoring system coupled to a processing chamber, the optical monitoring system configured to direct an optical beam light to a surface of a shadow frame disposed in the processing chamber.

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