MICROELECTROMECHANICAL APPARATUS AND METHODS FOR SURFACE ACOUSTIC WAVE SWITCHING
    72.
    发明公开
    MICROELECTROMECHANICAL APPARATUS AND METHODS FOR SURFACE ACOUSTIC WAVE SWITCHING 有权
    微机电装置和OVER表面声波方法

    公开(公告)号:EP1552610A1

    公开(公告)日:2005-07-13

    申请号:EP03764688.2

    申请日:2003-07-11

    Inventor: MA, Qing SHIM, Dong

    CPC classification number: H03H9/0542 H03H9/02779 H03H9/6403

    Abstract: Microelectromechanical system (MEMS) apparatus and methods for surface acoustic wave (SAW) switching are disclosed. The apparatus includes a piezoelectric substrate having spaced apart input and output SAW transducers. A MEMS switch is arranged between the input and output SAW transducers The MEMS switch has a deformable member in electromagnetic communication with one or more actuation electrodes formed on or above the substrate. The deformable member is deformable to mechanically contact the substrate to deflect or absorb a SAW generated by the input SAW transducer.

    BUCKLING BEAM BI-STABLE MICROELECTROMECHANICAL SWITCH USING ELECTRO-THERMAL ACTUATION
    79.
    发明公开
    BUCKLING BEAM BI-STABLE MICROELECTROMECHANICAL SWITCH USING ELECTRO-THERMAL ACTUATION 有权
    电热式活性炭微机电断跟BAR BISTABLE SWITCHES

    公开(公告)号:EP1529301A2

    公开(公告)日:2005-05-11

    申请号:EP03759192.2

    申请日:2003-08-13

    Inventor: MA, Qing

    CPC classification number: H01H1/0036 H01H37/5409 H01H2001/0042 H01H2037/008

    Abstract: A microelectromechanical system (MEMS) that includes a first electro-thermal actuator, a second electro-thermal actuator and a beam having a first side and a second side. The first electro-thermal actuator applies a force to the first side of the beam as current passes through the first electro-thermal actuator and the second electro-thermal actuator applies a force to the second side of the beam as current passes through the second electro-thermal actuator.

    STRUCTURE AND FABRICATION PROCEDURES TO ACHIEVE HIGH-Q AND LOW INSERTION LOSS FILM BULK ACOUSTIC RESONATORS
    80.
    发明公开
    STRUCTURE AND FABRICATION PROCEDURES TO ACHIEVE HIGH-Q AND LOW INSERTION LOSS FILM BULK ACOUSTIC RESONATORS 审中-公开
    结构和制造程序中获得胶片体声波谐振器高Q值和低插入损耗

    公开(公告)号:EP1464116A1

    公开(公告)日:2004-10-06

    申请号:EP02805205.8

    申请日:2002-12-17

    Abstract: A film bulk acoustic resonator is formed on a substrate. The film bulk acoustic resonator includes a layer of piezoelectric material having a first surface proximate the substrate, and a second surface distal from the substrate. The first conductive layer deposited on the first surface of the piezoelectric material includes a first portion having a surface on a different plane than a surface associated with a second portion. A method for forming the device includes depositing a first portion of a first electrode, and a piezoelectric layer onto the substrate. The method includes removing a portion of the substrate under the piezoelectric layer and under the portion of the first electrode, and depositing a second portion of the first electrode onto the piezoelectric film layer and onto the first portion of the first electrode.

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