Analyzer sample detection method and system

    公开(公告)号:US11079333B2

    公开(公告)日:2021-08-03

    申请号:US16828274

    申请日:2020-03-24

    Applicant: SciAps, Inc.

    Inventor: David R. Day

    Abstract: A spectrometer system and method including a laser source for directing a laser beam to a sample producing plasma radiation on the sample. At least one fiber of a fiber bundle is connected to an illumination source for directing light to the sample. A spectrometer subsystem receives plasma radiation from the sample via the detection fiber bundle. A camera receives light from the illumination source reflected off the sample for detecting the presence of the sample.

    MEASURING DEVICE, MEASURING METHOD, AND VACUUM PROCESSING APPARATUS

    公开(公告)号:US20210175055A1

    公开(公告)日:2021-06-10

    申请号:US17113031

    申请日:2020-12-05

    Abstract: A measuring device for a vacuum processing apparatus including a processing chamber having a first gate for loading and unloading a substrate and a second gate different from the first gate is provided. The measuring device includes a case having art opening that is sized to correspond to the second gate of the processing chamber and is airtightly attachable to the second gate, a decompressing mechanism configured to reduce a pressure in the case, and a measuring mechanism accommodated in the case and configured to measure a state in the processing chamber through the opening in a state where the pressure in the case is reduced by the decompressing mechanism.

    Plasma processing apparatus and control method

    公开(公告)号:US10971413B2

    公开(公告)日:2021-04-06

    申请号:US15947994

    申请日:2018-04-09

    Abstract: Provided is a plasma processing apparatus including a microwave radiating mechanism configured to radiate microwaves output from a microwave output unit into a processing container. The microwave radiating mechanism includes: an antenna configured to radiate the microwaves; a dielectric member configured to transmit the microwaves radiated from the antenna, and form an electric field for generating surface wave plasma by the microwaves; a sensor provided in the microwave radiating mechanism or adjacent to the microwave radiating mechanism, and configured to monitor electron temperature of the generated plasma; and a controller configured to determine a plasma ignition state based on the electron temperature of the plasma monitored by the sensor.

    Method and apparatus for calibrating optical path degradation useful for decoupled plasma nitridation chambers

    公开(公告)号:US10892147B2

    公开(公告)日:2021-01-12

    申请号:US15865171

    申请日:2018-01-08

    Abstract: Methods for matching semiconductor processing chambers using a calibrated spectrometer are disclosed. In one embodiment, plasma attributes are measured for a process in a reference chamber and a process in an aged chamber. Using a calibrated light source, an optical path equivalent to an optical path in a reference chamber and an optical path in an aged chamber can be compared by determining a correction factor. The correction factor is applied to adjust a measured intensity of plasma radiation through the optical path in the aged chamber. Comparing a measured intensity of plasma radiation in the reference chamber and the adjusted measured intensity in the aged chamber provide an indication of changed chamber conditions. A magnitude of change between the two intensities can be used to adjust the process parameters to yield a processed substrate from the aged chamber which matches that of the reference chamber.

    Light collection arrangement for optical emission spectroscopy

    公开(公告)号:US10801888B2

    公开(公告)日:2020-10-13

    申请号:US16681323

    申请日:2019-11-12

    Inventor: Esa Räikkönen

    Abstract: In accordance with an example embodiment of the invention, a detector assembly for an analyzer device for analysis of elemental composition of a sample using optical emission spectroscopy is provided. The detector assembly comprises an exciter for generating an excitation focused at a target position to invoke an optical emission from a surface of the sample at the target position; and a light collection arrangement for transferring the optical emission to a spectrometer. The light collection arrangement comprises a concave spherical mirror, an optical receiver arranged in an image point in the principal axis of the concave spherical mirror and a folding mirror including at least one aperture. The exciter is arranged with respect to the light collection arrangement such that the excitation is transferred towards the target position through said at least one aperture, and the folding mirror is arranged between the concave spherical mirror and the optical receiver such that the folding mirror folds the principal axis of the concave spherical mirror towards the target position and such that said at least one aperture is aligned with the principal axis of the concave spherical mirror to allow transferring optical emission reflected from the concave spherical mirror therethrough towards the optical receiver.

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