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    Surface acoustic wave device and communication device utilizing shear horizontal waves
    1.
    发明授权
    Surface acoustic wave device and communication device utilizing shear horizontal waves 有权
    表面声波装置和利用剪切水平波的通信装置

    公开(公告)号：US06369667B1

    公开(公告)日：2002-04-09

    申请号：US09561757

    申请日：2000-04-26

    申请人： Michio Kadota ,  Toshimaro Yoneda ,  Koji Fujimoto

    发明人： Michio Kadota ,  Toshimaro Yoneda ,  Koji Fujimoto

    IPC分类号： H03H964

    CPC分类号： H03H9/02551 ,  H03H3/08 ,  H03H9/14538

    摘要： A surface acoustic wave device includes a quartz substrate having Euler angles (0°, &thgr;, 90°±5°) in which &thgr; is in a range of 119°≦&thgr;≦140°, and an IDT for exciting an SH wave is formed on the quartz substrate by use of an electrode material containing as a major component at least one of Ag, Mo, Cu, Ni, Cr, and Zn and having a density of at least about 7 g/cm3. The film thickness of the IDT is such that the attenuation constant is approximately zero.

    摘要翻译： 表面声波装置包括具有欧拉角（0，θ，90 5）的石英基板，其中θ在119 <θ= 140的范围内，并且在石英基板上形成用于激发SH波的IDT 通过使用包含Ag，Mo，Cu，Ni，Cr和Zn中的至少一种作为主要成分并具有至少约7g / cm 3的密度的电极材料。 IDT的膜厚度使得衰减常数近似为零

    Method of manufacturing surface acoustic wave device
    2.
    发明授权
    Method of manufacturing surface acoustic wave device 有权
    表面声波装置的制造方法

    公开(公告)号：US06185801B1

    公开(公告)日：2001-02-13

    申请号：US09192774

    申请日：1998-11-16

    申请人： Michio Kadota ,  Toshimaro Yoneda ,  Koji Fujimoto

    发明人： Michio Kadota ,  Toshimaro Yoneda ,  Koji Fujimoto

    IPC分类号： H01L4100

    CPC分类号： H03H9/25 ,  H03H3/10 ,  Y10T29/42

    摘要： A method of manufacturing a surface acoustic wave device having a piezoelectric substrate and an interdigital transducer provided thereon, includes the steps of forming a coating layer made of inorganic material or organic material on the piezoelectric substrate so as to cover the interdigital transducer and etching the coating layer via a laser light to adjust an operation frequency of the surface acoustic wave device.

    摘要翻译： 一种制造具有压电基板和设置在其上的叉指式换能器的声表面波装置的方法包括以下步骤：在压电基板上形成由无机材料或有机材料制成的涂层，以覆盖指数间换能器并蚀刻涂层 层，经由激光调节声表面波装置的工作频率。

    Surface acoustic wave resonator, filter, duplexer and communication apparatus
    4.
    发明授权
    Surface acoustic wave resonator, filter, duplexer and communication apparatus 有权
    表面声波谐振器，滤波器，双工器和通信装置

    公开(公告)号：US06218763B1

    公开(公告)日：2001-04-17

    申请号：US09378655

    申请日：1999-08-20

    申请人： Koji Fujimoto ,  Michio Kadota ,  Toshimaro Yoneda

    发明人： Koji Fujimoto ,  Michio Kadota ,  Toshimaro Yoneda

    IPC分类号： H03H925

    CPC分类号： H03H9/02559 ,  H03H9/64

    摘要： A surface acoustic wave resonator includes a piezoelectric substrate and an interdigital transducer disposed thereon. The surface acoustic wave resonator operates using a shear horizontal wave, and the interdigital transducer includes an electrode film made of a metal containing W or Ta as its main component and a thin film made of Al.

    摘要翻译： 声表面波谐振器包括压电基片和设置在其上的叉指换能器。 表面声波谐振器使用剪切水平波进行操作，并且叉指式换能器包括由以W或Ta为主要成分的金属制成的电极膜和由Al制成的薄膜。

    Surface acoustic wave resonator, surface acoustic wave device, and communication device using shear horizontal waves
    6.
    发明授权
    Surface acoustic wave resonator, surface acoustic wave device, and communication device using shear horizontal waves 有权
    表面声波谐振器，表面声波装置和使用剪切水平波的通信装置

    公开(公告)号：US06437668B1

    公开(公告)日：2002-08-20

    申请号：US09557805

    申请日：2000-04-25

    申请人： Takeshi Nakao ,  Toshimaro Yoneda ,  Koji Fujimoto ,  Michio Kadota

    发明人： Takeshi Nakao ,  Toshimaro Yoneda ,  Koji Fujimoto ,  Michio Kadota

    IPC分类号： H03H925

    CPC分类号： H03H9/25

    摘要： A surface acoustic wave resonator includes a piezoelectric substrate and an interdigital transducer disposed on the piezoelectric substrate and made of a metal or an alloy having a higher specific weight than that of the piezoelectric material of the piezoelectric substrate so as to generate shear horizontal waves. The interdigital transducer includes a plurality of electrode fingers. A ratio of the electrode finger width relative to the electrode finger width plus the space between adjacent electrode fingers is about 0.55 to about 0.85.

    摘要翻译： 弹性表面波谐振器包括压电基片和配置在压电基片上并由与压电基片的压电材料相比具有更高比重的金属或合金制成的叉指换能器，以产生剪切水平波。 叉指换能器包括多个电极指。 电极指宽度相对于电极指宽度加上相邻电极指之间的空间的比率为约0.55至约0.85。

    Surface acoustic wave device
    8.
    发明授权
    Surface acoustic wave device 有权
    表面声波装置

    公开(公告)号：US6088462A

    公开(公告)日：2000-07-11

    申请号：US348108

    申请日：1999-07-06

    申请人： Koji Fujimoto ,  Michio Kadota ,  Toshimaro Yoneda

    发明人： Koji Fujimoto ,  Michio Kadota ,  Toshimaro Yoneda

    IPC分类号： H03H9/145 ,  H03H9/02 ,  H03H9/25 ,  H04R25/00

    CPC分类号： H03H9/02669 ,  H03H9/02551

    摘要： A surface acoustic wave device includes a quartz rotated Y-cut plate and at least one interdigital transducer disposed on the quartz rotated Y-cut plate. The quartz rotated Y-cut plate has a Euler angle represented by (0, .theta., .phi.). The angle .theta. is within a range of about 125.degree.

    摘要翻译： 表面声波装置包括石英旋转Y切割板和设置在石英旋转Y切割板上的至少一个叉指换能器。 石英旋转Y切割板具有由（0，θ，phi）表示的欧拉角。 角度θ在大约125°<130°的范围内或其等同角度，并且角度φi约为90度。 叉指式换能器由钨制成。

    Surface acoustic wave device
    9.
    发明授权
    Surface acoustic wave device 失效
    表面声波装置

    公开(公告)号：US5953433A

    公开(公告)日：1999-09-14

    申请号：US38716

    申请日：1998-01-28

    申请人： Koji Fujimoto ,  Michio Kadota ,  Toshimaro Yoneda

    发明人： Koji Fujimoto ,  Michio Kadota ,  Toshimaro Yoneda

    IPC分类号： H03H9/145 ,  H03H9/02 ,  H03H9/25 ,  H04R25/00 ,  H04R1/02 ,  H04R1/20

    CPC分类号： H03H9/02669 ,  H03H9/02551

    摘要： A surface acoustic wave device includes a quartz rotated Y-cut plate and at least one interdigital transducer disposed on the quartz rotated Y-cut plate. The quartz rotated Y-cut plate has a Euler angle represented by (0, .theta., .o slashed.). The angle .theta. is within a range of about 125.degree.

    摘要翻译： 表面声波装置包括石英旋转Y切割板和设置在石英旋转Y切割板上的至少一个叉指换能器。 石英旋转Y切割板具有由（0，θ，+ 526）表示的欧拉角。 角度θ在约125°<130°或其等同范围内，角度+526约为90度。 叉指式换能器由钨制成。