FILTER ELEMENT, DUPLEXER AND ELECTRONIC DEVICE
    1.
    发明申请
    FILTER ELEMENT, DUPLEXER AND ELECTRONIC DEVICE 失效
    滤波器元件,双工器和电子器件

    公开(公告)号:US20110267155A1

    公开(公告)日:2011-11-03

    申请号:US13177797

    申请日:2011-07-07

    IPC分类号: H03H9/58 H03H9/205

    摘要: A filter element includes a plurality of multilayer filters that are connected in cascade, each of the plurality of multilayer filters including a plurality of piezoelectric thin-film resonators stacked vertically, each of the piezoelectric thin-film resonators including a piezoelectric film and a pair of first electrodes between which the piezoelectric film is interposed, and a capacitor connected between an input terminal of one of the plurality of multilayer filters of a preceding stage and an input terminal of another one of the plurality of multilayer filters of a following stage, exciting directions of piezoelectric thin-film resonators to which the input terminals of the multilayer filters of the preceding and following stages are connected being opposite to each other.

    摘要翻译: 滤波器元件包括串联连接的多个多层滤波器,多个多层滤波器中的每一个包括垂直堆叠的多个压电薄膜谐振器,每个压电薄膜谐振器包括压电薄膜和一对 插入压电膜的第一电极和连接在前级的多个多层滤波器中的一个的输入端子和后级的多个多层滤波器中的另一个的输入端子之间的电容器,激励方向 压电薄膜谐振器彼此相反地连接有前级和后级的多层滤波器的输入端。

    PIEZOELECTRIC THIN-FILM RESONATOR
    3.
    发明申请
    PIEZOELECTRIC THIN-FILM RESONATOR 有权
    压电薄膜谐振器

    公开(公告)号:US20120200199A1

    公开(公告)日:2012-08-09

    申请号:US13449072

    申请日:2012-04-17

    IPC分类号: H01L41/053

    摘要: A piezoelectric thin-film resonator includes a substrate, a lower electrode provided on the substrate, a piezoelectric film provided on the substrate and the lower electrode, an upper electrode provided on the piezoelectric film, and an additional pattern, a cavity being formed between the lower electrode and the substrate in a resonance portion in which the lower electrode and the upper electrode face each other through the piezoelectric film, the additional pattern being provided in a position that is on the lower electrode and includes an interface between the resonance portion and a non-resonance portion.

    摘要翻译: 压电薄膜谐振器包括基板,设置在基板上的下电极,设置在基板和下电极上的压电膜,设置在压电膜上的上电极和附加图案,空腔形成在该基板 所述下电极和所述基板在所述下电极和所述上电极通过所述压电膜彼此面对的共振部中,所述附加图案设置在所述下电极上并且包括所述共振部和所述共振部之间的界面的位置 非共振部分。

    FILTER, DUPLEXER, AND COMMUNICATION APPARATUS
    5.
    发明申请
    FILTER, DUPLEXER, AND COMMUNICATION APPARATUS 有权
    过滤器,双面器和通信设备

    公开(公告)号:US20100026414A1

    公开(公告)日:2010-02-04

    申请号:US12512794

    申请日:2009-07-30

    IPC分类号: H01P5/12

    CPC分类号: H03H9/725 H03H7/18 H03H9/706

    摘要: A filter includes: a first filter unit includes: a series resonators connected in series to each other between a first input terminal and a first output terminal; a parallel resonators each having one end connected to one terminal of each of the series resonators; and a common inductance having one end connected to the other ends of the parallel resonators and the other end connected to a ground terminal, and a second filter unit includes: a series resonators connected in series to each other between a second input terminal and a second output terminal; a parallel resonators each having one end connected to one terminal of each of the series resonators; and a common inductance having one end connected to the other ends of the parallel resonators and the other end connected to the ground terminal.

    摘要翻译: 滤波器包括:第一滤波器单元,包括:在第一输入端和第一输出端之间彼此串联连接的串联谐振器; 每个并联谐振器的一端连接到每个串联谐振器的一个端子; 以及公共电感,其一端连接到并联谐振器的另一端并且另一端连接到接地端子,并且第二滤波器单元包括:在第二输入端子和第二输入端子之间彼此串联连接的串联谐振器 输出端子 每个并联谐振器的一端连接到每个串联谐振器的一个端子; 以及公共电感,其一端连接到并联谐振器的另一端,另一端连接到接地端子。

    ACOUSTIC WAVE DEVICE AND FILTER
    8.
    发明申请
    ACOUSTIC WAVE DEVICE AND FILTER 有权
    声波设备和滤波器

    公开(公告)号:US20120200373A1

    公开(公告)日:2012-08-09

    申请号:US13362753

    申请日:2012-01-31

    IPC分类号: H03H9/58 H01L41/04

    摘要: An acoustic wave device including: a substrate; a piezoelectric film formed on the substrate; an lower electrode provided on a first surface of the piezoelectric film; an upper electrode provided on a second surface of the piezoelectric film opposite to the first surface; and a mass loading film having a first pattern and a second pattern in a resonance portion in which the lower electrode and the upper electrode face each other through the piezoelectric film, the first pattern having portions and the second pattern having portions interlinking the portions of the first pattern.

    摘要翻译: 一种声波装置,包括:基板; 形成在基板上的压电膜; 设置在所述压电膜的第一表面上的下电极; 设置在与第一表面相对的压电膜的第二表面上的上电极; 以及在下部电极和上部电极通过压电膜彼此面对的共振部中具有第一图案和第二图案的质量加载膜,第一图案具有部分,第二图案具有将部分 第一种模式

    ACOUSTIC WAVE DEVICE
    9.
    发明申请
    ACOUSTIC WAVE DEVICE 有权
    声波设备

    公开(公告)号:US20120104900A1

    公开(公告)日:2012-05-03

    申请号:US13240407

    申请日:2011-09-22

    IPC分类号: H01L41/083

    CPC分类号: H03H9/584 H03H9/587 H03H9/589

    摘要: An acoustic wave device includes: a first piezoelectric thin film resonator including a first lower electrode, a first upper electrode and a first piezoelectric film sandwiched between the first lower and upper electrodes; a decoupler film provided on the first upper electrode; and a second piezoelectric thin film resonator provided on the decoupler film and including a second lower electrode, a second upper electrode and a second piezoelectric film sandwiched between the second lower and upper electrodes, wherein the first piezoelectric film and the second piezoelectric film comprise aluminum nitride and include an element increasing a piezoelectric constant of the aluminum nitride.

    摘要翻译: 声波装置包括:第一压电薄膜谐振器,包括第一下电极,第一上电极和夹在第一下电极和上电极之间的第一压电薄膜; 设置在第一上电极上的去耦膜; 以及第二压电薄膜谐振器,其设置在所述去耦膜上并且包括夹在所述第二下电极和上电极之间的第二下电极,第二上电极和第二压电薄膜,其中所述第一压电薄膜和所述第二压电薄膜包括氮化铝 并且包括增加氮化铝的压电常数的元素。