MASS FLOW CONTROL BASED ON MICRO-ELECTROMECHANICAL DEVICES

    公开(公告)号:US20220083081A1

    公开(公告)日:2022-03-17

    申请号:US17475294

    申请日:2021-09-14

    Abstract: Disclosed herein are embodiments of a mass flow control apparatus, systems incorporating the same, and methods using the same. In one embodiment, a mass flow control apparatus comprises a flow modulating valve configured to modulate gas flow in a gas flow channel, a sensor device, such as a micro-electromechanical (MEMS) device, configured to generate a signal responsive to a condition of the gas flow, and a processing device operatively coupled to the flow modulating valve and the sensor device to control the flow modulating valve based on a signal received from the sensor device.

    MICRO-ELECTROMECHANICAL DEVICE FOR USE IN A FLOW CONTROL APPARATUS

    公开(公告)号:US20220081282A1

    公开(公告)日:2022-03-17

    申请号:US17475296

    申请日:2021-09-14

    Inventor: Nir Merry Ming Xu

    Abstract: Disclosed herein are embodiments of a sensor device, systems incorporating the same, and methods of fabricating the same. In one embodiment, a sensor device comprises a free-standing sensing element, such as a micro-electromechanical system (MEMS) device. The sensor device further comprises a metallic band to facilitate mounting the MEMS device to a mounting plate. The sensor device further comprises a conformal coating on a least a portion of a sensor region of the sensor device.

    PRESSURE REGULATED FLOW CONTROLLER
    25.
    发明申请

    公开(公告)号:US20210165428A1

    公开(公告)日:2021-06-03

    申请号:US17175313

    申请日:2021-02-12

    Abstract: A manufacturing system includes a processing chamber, an gas supply, and a mass flow control apparatus coupled to the gas supply and the processing chamber. The mass flow control apparatus includes a flow restriction element configured to restrict a flow rate of a gas, a bypass flow element configured to control the flow rate of the gas in parallel to the flow restriction element, and a pressure regulator configured to control a pressure of the gas between the pressure regulator and the flow restriction element and/or a pressure of the gas between the pressure regulator and the flow restriction element. The manufacturing system further includes a controller that is configured to flow gas from the gas supply to the processing chamber via the mass flow control apparatus in view of a first pressure setting. The controller further determines to modify the flow of the gas from a first flow rate associated with the first pressure setting to a second flow rate. The controller further determines a second pressure setting associated with the second flow rate and causes the pressure regulator to modify the pressure of the gas between the pressure regulator and the flow restriction element and/or the pressure regulator and the bypass flow element in view of the second pressure setting.

    PACKAGING FOR A SENSOR AND METHODS OF MANUFACTURING THEREOF

    公开(公告)号:US20230313376A1

    公开(公告)日:2023-10-05

    申请号:US17855031

    申请日:2022-06-30

    Abstract: Certain embodiments of the present disclosure relate to a sensor assembly including a housing having a first channel configured to flow a gas in a first direction and a second channel configured to flow the gas in a second direction. The housing is configured to couple to a gas flow assembly. A substrate is disposed within the housing. The substrate has an outer region, an inner region within the first channel, and a middle region between the outer region and the inner region. The substrate further includes electrical contact pads on at least the inner region. A sensor die is coupled to the inner region of the substrate, having an electrical connection to the electrical contact pads. The sensor die is disposed within a gas flow path of the first channel.

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