Gyroscope structure and gyroscope device

    公开(公告)号:US09829318B2

    公开(公告)日:2017-11-28

    申请号:US14694208

    申请日:2015-04-23

    Inventor: Anssi Blomqvist

    Abstract: A microelectromechanical gyroscope structure for detecting angular motion about an axis of angular motion. A drive element is suspended for one-dimensional motion in a direction of a drive axis, and a sense body carries one or more sense rotor electrodes and is coupled to the drive element with a first directional spring structure that forces the sense body to move with the drive element and has a preferred direction of motion in a direction of a sense axis. The drive element includes an actuation body and a drive frame wherein the first spring structure couples the sense body directionally to the drive frame, and a second directional spring structure that couples the drive frame to the actuation body and has a preferred direction of motion in the direction of the sense axis.

    METHOD OF FORMING MICRO ELECTROMECHANICAL SYSTEM SENSOR

    公开(公告)号:US20170313581A1

    公开(公告)日:2017-11-02

    申请号:US15643536

    申请日:2017-07-07

    CPC classification number: B81C1/00246 B81B2201/0242

    Abstract: A method of making a micro electromechanical system (MEMS) package includes patterning a substrate to form a MEMS section. The method further includes bonding a carrier to a surface of the substrate. The carrier is free of active devices. The carrier includes a carrier bond pad on a surface of the carrier opposite the MEMS section. The carrier bond pad is electrically connected to the MEMS section. The method further includes bonding a wafer bond pad of an active circuit wafer to the carrier bond pad. The bonding of the wafer bond pad to the carrier bond pad includes re-graining the wafer bond pad to form at least one grain boundary extending from the wafer bond pad to the carrier bond pad.

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