Rotation-rate sensor, method for producing a rotation-rate sensor

    公开(公告)号:US11466985B2

    公开(公告)日:2022-10-11

    申请号:US16636798

    申请日:2018-07-30

    申请人: Robert Bosch GmbH

    摘要: A rotation-rate sensor having a substrate, the substrate having a main-extension-plane, and the rotation-rate sensor includes at least one first and one second mass-element which are oscillate-able, and a first main-extension-direction of the substrate points from the first mass-element to the second mass-element, and a coupling-structure is situated in the first main-extension-direction between the first and second mass-element, in which a first coupling-region of the coupling-structure is situated in a first function-layer, and a first mass-region of the first mass-element is situated in the first function-layer and a second mass-region of the first mass-element is situated in a second function-layer, the first function-layer being situated in an extension-direction perpendicular to the main-extension-plane between the substrate and the second function-layer, a second main-extension-direction being situated perpendicular to the first main-extension-direction, and the first coupling-region having a greater extension in the first main-extension-direction than in the second main-extension-direction.

    MICROMECHANICAL Z-INERTIAL SENSOR
    3.
    发明申请

    公开(公告)号:US20190135613A1

    公开(公告)日:2019-05-09

    申请号:US16173087

    申请日:2018-10-29

    申请人: Robert Bosch GmbH

    IPC分类号: B81B3/00 B81C1/00 G01P15/08

    摘要: A micromechanical z-inertial sensor having a movable MEMS structure developed in a second function layer; first spring elements developed in a first function layer, and a first electrode developed in the first function layer, the first spring elements being connected to the movable MEMS structure and to a substrate, and the first function layer being situated below the second function layer; second spring elements developed in a third function layer, and a second electrode developed in the third function layer, the second spring elements being connected to the movable MEMS structure and to the substrate, and the third function layer being disposed above the second function layer; the movable MEMS structure being deflectable in the z-direction with the aid of the spring elements, and in a defined manner, not being deflectable in the x- and y-directions.

    MICROMECHANICAL COMPONENT FOR A ROTATION RATE SENSOR AND CORRESPONDING MANUFACTURING METHOD

    公开(公告)号:US20230095336A1

    公开(公告)日:2023-03-30

    申请号:US17908081

    申请日:2021-04-14

    申请人: Robert Bosch GmbH

    摘要: A micromechanical component for a rotation rate sensor. The micromechanical component includes two rotor masses, mirror symmetrical with respect to a first plane of symmetry aligned perpendicularly to a substrate surface and passing through the center of the two rotor masses, which may be set in rotational vibrating motion about rotational axes aligned perpendicularly to the substrate surface, and four seismic masses, mirror symmetrical with respect to the first plane of symmetry, deflectable in parallel to the first plane of symmetry using the two rotor masses set in their respective rotational vibrating motion. The first rotor mass and a first pair of the four seismic masses connected thereto are mirror symmetrical to the second rotor mass and to a second pair of the four seismic masses connected thereto with respect to a second plane of symmetry aligned perpendicularly to the substrate surface and to the first plane of symmetry.