MEMS sensor as well as method for operating a mems sensor

    公开(公告)号:US12145840B2

    公开(公告)日:2024-11-19

    申请号:US17291864

    申请日:2020-01-20

    Abstract: A MEMS sensor. The MEMS sensor includes a deflectably situated functional layer, a conversion device for converting a deflection of the functional layer into an electrical signal, the conversion device including at least one electrical element, the at least one electrical element being at least partially electrically connected to a first area, and the first area being at least partially electrically connected to a second area, and the first and second areas and/or the first area and the at least one electrical element being electrically operable in a reverse direction and a forward direction, and a control unit, the control unit being designed to at least partially operate the at least one electrical element and the first area and/or the first area and the second area in the forward direction to provide thermal energy.

    Method for manufacturing a substrate having a region mechanically decoupled from a support, method for manufacturing at least one spring, and a substrate

    公开(公告)号:US11608264B2

    公开(公告)日:2023-03-21

    申请号:US16477279

    申请日:2017-12-15

    Abstract: A method for manufacturing a substrate including a region, which is mechanically decoupled from a support and has at least one component situated on the region; at least one recess being introduced on a front side of the substrate; an etching pattern being prepared on a back side of the substrate and etched anisotropically in such a manner, that vertical channels are produced on the back side of the substrate; and subsequently, a cavity being introduced at the back side of the substrate; the at least one recess on the front side of the substrate being connected to the cavity on the back side of the substrate; and in at least one region between the front side of the substrate and the cavity, at least two recesses or at least two segments of a recess being interconnected by at least one channel.

    Linearized micromechanical sensor
    15.
    发明授权

    公开(公告)号:US11326969B2

    公开(公告)日:2022-05-10

    申请号:US16471221

    申请日:2017-12-08

    Abstract: A micromechanical sensor includes a substrate having a cavity; a flexible diaphragm spanning the cavity; and a lever element that spans the diaphragm and has a first and second end section on opposite sides of a center section. A first joint element is between the first end section and the substrate and a second joint element is between the center section and the diaphragm. The lever element can be pivoted due to a deflection of the diaphragm. Two capacitive sensors are provided, each having two electrodes, one electrode of each sensor being mounted at one of the end sections of the lever element, and the other being mounted on the substrate. The electrodes are disposed so that distances between the electrodes of different sensors are influenced oppositely when the lever element is pivoted. Also, an actuator is provided for applying an actuating force between the lever element and the substrate.

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