MEMS GAS SENSOR AND ARRAY THEREOF, AND GAS DETECTION AND PREPARATION METHOD

    公开(公告)号:US20230341367A1

    公开(公告)日:2023-10-26

    申请号:US17906920

    申请日:2020-07-10

    申请人: Wiinaa Co., Ltd.

    IPC分类号: G01N33/00 B81B7/04

    摘要: A MEMS gas sensor (A) and array (B) thereof, a gas detection and preparation method. The gas sensor (A) comprises a first substrate (A2) with a cavity (A1) provided in a first surface, and a gas detection assembly (A3) arranged at an opening of the cavity The gas detection assembly comprises: a supporting suspension bridge (A31) erected on the opening of the cavity, and a gas detection part (A32) arranged on the supporting suspension bridge. The gas detection part comprises a strip-shaped heating electrode part (A321), an insulating layer (A322), a strip-shaped detection electrode part (A323) and a gas-sensitive material part (A324), which are sequentially stacked. The strip-shaped detection electrode part comprises a first detection electrode part (A323-1) and a second detection electrode part (A323-2), with a first opening (A325) provided between the A323-1 and A323-2; the gas-sensitive material part is arranged at the position of the first opening.

    MEMS device with electrodes and a dielectric

    公开(公告)号:US11753295B2

    公开(公告)日:2023-09-12

    申请号:US18079519

    申请日:2022-12-12

    IPC分类号: B81B7/04 B81C1/00 B81B3/00

    摘要: A MEMS device can include a solid dielectric including a plurality of apertures, the solid dielectric having a first side and a second side. The MEMS device can include a first plurality of electrodes extending completely through a first subset of the plurality of apertures, a second plurality of electrodes extending partially through a second subset of the plurality of apertures, a third plurality of electrodes extending partially into a third subset of the plurality of apertures. The MEMS device can include a first diaphragm coupled to the first plurality and to the third plurality of electrodes, the first diaphragm facing the first side of the solid dielectric. The MEMS device can include a second diaphragm coupled to the first plurality and to the second plurality of electrodes the second diaphragm facing the second side of the solid dielectric.

    Charge pump systems, devices, and methods

    公开(公告)号:US11025162B2

    公开(公告)日:2021-06-01

    申请号:US16836049

    申请日:2020-03-31

    申请人: wiSpry, Inc.

    摘要: The present subject matter relates to charge pump devices, systems, and methods in which a plurality of series-connected charge-pump stages are connected between a supply voltage node and a primary circuit node, and a discharge circuit is connected to the plurality of charge-pump stages, wherein the discharge circuit is configured to selectively remove charge from the primary circuit node.

    METHOD AND SYSTEM FOR SENSOR CONFIGURATION

    公开(公告)号:US20210047174A1

    公开(公告)日:2021-02-18

    申请号:US16946511

    申请日:2020-06-24

    申请人: INVENSENSE, INC.

    IPC分类号: B81B7/04 B81B3/00

    摘要: Described herein are methods and systems for controlling a sensor assembly with a plurality of same type sensors. Sensors are operated in active and inactive states and have a corresponding performance parameter and reliability parameter that may be determined. The activation state of at least one of the sensors is changed based on an operational parameter. The performance parameter and/or the reliability parameter can then be updated.

    Micro-mirror array having pillars which form portions of electrical paths between mirror electrodes and mirrors

    公开(公告)号:US10571684B2

    公开(公告)日:2020-02-25

    申请号:US15107586

    申请日:2015-12-11

    发明人: Shang Wang

    摘要: The present disclosure discloses a micro-mirror array, and a backlight module and a display device using the same. Each reflection mirror in the micro-mirror array comprises a first axis of deflection and a second axis of deflection perpendicular to the first axis of deflection, and a deflection angle of the reflection mirror is controlled individually and continuously. The backlight module comprises a light source, a micro-mirror array and a control unit. The control unit adjusts a deflection angle of each reflection mirror in the micro-mirror array in response to a backlight control signal, so that depending on the backlight control signal, the micro-mirror array reflects light emitted from the light source evenly to an entire surface of the display screen or converges the light to one or more areas of the display screen.