MICROMECHANICAL ENVIRONMENTAL BARRIER DEVICE

    公开(公告)号:US20240182297A1

    公开(公告)日:2024-06-06

    申请号:US18519897

    申请日:2023-11-27

    Abstract: A method for manufacturing a micromechanical environmental barrier chip includes providing a substrate having a first surface and an opposite second surface, depositing a material layer having a different etch characteristic than the substrate onto the first surface, creating a microstructured micromechanical environmental barrier structure on top of the material layer by applying a microstructuring process, applying an anisotropic etching process comprising at least one etching step for anisotropically etching from the second surface towards the first surface to create at least a cavity underneath the micromechanical environmental barrier structure, the cavity extending between the second surface and the material layer, and removing the material layer underneath the micromechanical environmental barrier structure to expose the environmental barrier structure.

    MEMS Sound Transducer Element
    3.
    发明申请

    公开(公告)号:US20210017016A1

    公开(公告)日:2021-01-21

    申请号:US16895366

    申请日:2020-06-08

    Abstract: A MEMS sound transducer element is operable in an audio and an ultrasonic range. The MEMS sound transducer element includes a first electrode structure, wherein a conductive material of the first electrode structure includes a plurality of electrically isolated electrode segments, and a second electrode structure spaced apart from the first electrode structure, wherein the first electrode structure and the second electrode structure are operable as an audio sound transducer. A first subset of the plurality of electrically isolated electrode segments of the first electrode structure is, in conjunction with the second electrode structure, operable as an ultrasonic or audio emitter, and a second subset of the plurality of the electrically isolated electrode segments of the first electrode structure is, in conjunction with the second electrode structure, operable as an ultrasonic or audio receiver.

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