Micromechanical detection structure for a MEMS sensor device, in particular a MEMS gyroscope, with improved driving features

    公开(公告)号:US11015933B2

    公开(公告)日:2021-05-25

    申请号:US16664041

    申请日:2019-10-25

    IPC分类号: G01C19/5712

    摘要: A micromechanical detection structure includes a substrate of semiconductor material and a driving-mass arrangement is coupled to a set of driving electrodes and driven in a driving movement following upon biasing of the set of driving electrodes. A first anchorage unit is coupled to the driving-mass arrangement for elastically coupling the driving-mass arrangement to the substrate at first anchorages. A driven-mass arrangement is elastically coupled to the driving-mass arrangement by a coupling unit and designed to be driven by the driving movement. A second anchorage unit is coupled to the driven-mass arrangement for elastically coupling the driven-mass arrangement to the substrate at second anchorages. Following upon the driving movement, the resultant of the forces and of the torques exerted on the substrate at the first and second anchorages is substantially zero.

    MEMS GYROSCOPE HAVING A HIGH STABILITY WITH RESPECT TO TEMPERATURE AND HUMIDITY VARIATIONS

    公开(公告)号:US20180094929A1

    公开(公告)日:2018-04-05

    申请号:US15466722

    申请日:2017-03-22

    IPC分类号: G01C19/574

    摘要: A MEMS device including a main die that may be coupled to a secondary die, which forms a frame, and at least one first mobile mass elastically coupled to the frame, the main die forming: a driving stage that drives the first mobile mass so that it oscillates, parallel to a first direction, with frequency-modulated displacements; and a processing stage, which generates an output signal indicating an angular velocity of the MEMS device as a function of displacements parallel to a second direction that are made by the first mobile mass, when driven by the driving stage, on account of a Coriolis force.

    MICRO-ELECTRO-MECHANICAL DEVICE WITH COMPENSATION OF ERRORS DUE TO DISTURBANCE FORCES, SUCH AS QUADRATURE COMPONENTS
    8.
    发明申请
    MICRO-ELECTRO-MECHANICAL DEVICE WITH COMPENSATION OF ERRORS DUE TO DISTURBANCE FORCES, SUCH AS QUADRATURE COMPONENTS 有权
    微机电装置补偿由于干扰力等因素造成的错误,如作为平衡部件

    公开(公告)号:US20150377624A1

    公开(公告)日:2015-12-31

    申请号:US14750840

    申请日:2015-06-25

    IPC分类号: G01C19/5712

    摘要: MEMS device having a support region elastically carrying a suspended mass through first elastic elements. A tuned dynamic absorber is elastically coupled to the suspended mass and configured to dampen quadrature forces acting on the suspended mass at the natural oscillation frequency of the dynamic absorber. The tuned dynamic absorber is formed by a damping mass coupled to the suspended mass through second elastic elements. In an embodiment, the suspended mass and the damping mass are formed in a same structural layer, for example of semiconductor material, and the damping mass is surrounded by the suspended mass.

    摘要翻译: MEMS器件具有通过第一弹性元件弹性地携带悬挂质量的支撑区域。 调谐动态吸收器弹性耦合到悬挂质量并且被配置为在动态吸收体的固有振荡频率下抑制作用在悬浮质量上的正交力。 调谐动态吸收器由通过第二弹性元件联接到悬挂质量的阻尼物质形成。 在一个实施例中,悬挂质量和阻尼质量形成在相同的结构层中,例如半导体材料,并且阻尼块被悬挂质量包围。

    Microelectromechanical device with signal routing through a protective cap

    公开(公告)号:US11274036B2

    公开(公告)日:2022-03-15

    申请号:US16815883

    申请日:2020-03-11

    IPC分类号: B81B7/00 B81B7/02 B81C1/00

    摘要: A microelectromechanical device includes: a body accommodating a microelectromechanical structure; and a cap bonded to the body and electrically coupled to the microelectromechanical structure through conductive bonding regions. The cap including a selection module, which has first selection terminals coupled to the microelectromechanical structure, second selection terminals, and at least one control terminal, and which can be controlled through the control terminal to couple the second selection terminals to respective first selection terminals according, selectively, to one of a plurality of coupling configurations corresponding to respective operating conditions.