MEMS DEVICE AND PROCESS FOR RF AND LOW RESISTANCE APPLICATIONS

    公开(公告)号:US20170297900A1

    公开(公告)日:2017-10-19

    申请号:US15477193

    申请日:2017-04-03

    申请人: INVENSENSE, INC.

    IPC分类号: B81B3/00 B81C3/00

    摘要: MEMS device for low resistance applications are disclosed. In a first aspect, the MEMS device comprises a MEMS wafer including a handle wafer with one or more cavities containing a first surface and a second surface and an insulating layer deposited on the second surface of the handle wafer. The MEMS device also includes a device layer having a third and fourth surface, the third surface bonded to the insulating layer of the second surface of handle wafer; and a metal conductive layer on the fourth surface. The MEMS device also includes CMOS wafer bonded to the MEMS wafer. The CMOS wafer includes at least one metal electrode, such that an electrical connection is formed between the at least one metal electrode and at least a portion of the metal conductive layer.

    Pressure sensor structure
    119.
    发明授权
    Pressure sensor structure 有权
    压力传感器结构

    公开(公告)号:US09541464B2

    公开(公告)日:2017-01-10

    申请号:US14293317

    申请日:2014-06-02

    发明人: Heikki Kuisma

    摘要: A microelectromechanical pressure sensor structure that comprises a planar base and side walls and a diaphragm plate. The side walls extend circumferentially away from the planar base to a top surface of the side walls. The planar base, the side walls and the diaphragm plate are attached to each other to form a hermetically closed gap in a reference pressure, and a top edge of the inner surfaces of the side walls forms a periphery of a diaphragm. The diaphragm plate comprises one or more planar material layers of which a first planar material layer spans over the periphery of the diaphragm. The top surface of the side walls comprises at least one isolation area that is not covered by the first planar material layer.

    摘要翻译: 一种微机电压力传感器结构,其包括平面基座和侧壁以及隔膜板。 侧壁从平面基部周向延伸到侧壁的顶表面。 平面基座,侧壁和隔膜板彼此附接以形成参考压力的气密闭合的间隙,并且侧壁的内表面的顶部边缘形成隔膜的周边。 隔膜板包括一个或多个平面材料层,第一平面材料层跨过隔膜的周边。 侧壁的顶表面包括至少一个不被第一平面材料层覆盖的隔离区域。