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公开(公告)号：US09136458B2
公开(公告)日：2015-09-15
申请号：US14004163
申请日：2012-03-05
IPC分类号： H03H9/25 , H03H9/42 , H01L41/047 , H03H9/02
CPC分类号： H03H9/25 , H01L41/047 , H03H9/02818 , H03H9/02992
摘要： An elastic wave element includes a piezoelectric substrate, an IDT electrode, and a first dielectric film. The IDT electrode includes a first bus bar electrode, a second bus bar electrode, first electrode fingers, and second electrode fingers. The piezoelectric substrate includes a bus bar electrode region, an alternately disposed region, and an intermediate region. The first dielectric film is formed in at least a part of the intermediate region, and formed of a medium in which acoustic velocity of a transverse wave propagating in the first dielectric film is lower than acoustic velocity of a main elastic wave in the alternately disposed region.
摘要翻译： 弹性波元件包括压电基片，IDT电极和第一电介质膜。 IDT电极包括第一母线电极，第二母线电极，第一电极指和第二电极指。 压电基板包括汇流条电极区域，交替设置的区域和中间区域。 第一电介质膜形成在中间区域的至少一部分中，并且由在第一电介质膜中传播的横波的声速低于交替设置区域中的主弹性波的声速的介质形成 。
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公开(公告)号：US20140001919A1
公开(公告)日：2014-01-02
申请号：US14004163
申请日：2012-03-05
IPC分类号： H01L41/047
CPC分类号： H03H9/25 , H01L41/047 , H03H9/02818 , H03H9/02992
摘要： An elastic wave element includes a piezoelectric substrate, an IDT electrode, and a first dielectric film. The IDT electrode includes a first bus bar electrode, a second bus bar electrode, first electrode fingers, and second electrode fingers. The piezoelectric substrate includes a bus bar electrode region, an alternately disposed region, and an intermediate region. The first dielectric film is formed in at least a part of the intermediate region, and formed of a medium in which acoustic velocity of a transverse wave propagating in the first dielectric film is lower than acoustic velocity of a main elastic wave in the alternately disposed region.
摘要翻译： 弹性波元件包括压电基片，IDT电极和第一电介质膜。 IDT电极包括第一母线电极，第二母线电极，第一电极指和第二电极指。 压电基板包括汇流条电极区域，交替设置的区域和中间区域。 第一电介质膜形成在中间区域的至少一部分中，并且由在第一电介质膜中传播的横波的声速低于交替设置区域中的主弹性波的声速的介质形成 。
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13.发明授权公开(公告)号：US09425766B2
公开(公告)日：2016-08-23
申请号：US13390115
申请日：2010-10-29
CPC分类号： H03H9/02559 , H03H9/1452 , H03H9/64
摘要： An acoustic wave device includes a piezoelectric substrate made of a lithium niobate material having the Euler angles (φ, θ, ψ), an electrode disposed on the piezoelectric substrate for exciting a major acoustic wave of a wavelength λ, and a protective layer disposed on the piezoelectric substrate to cover the electrode. The protective layer has a thickness greater than 0.27λ. The Euler angles satisfy −100°≦θ≦−60°; 1.193φ−2°≦ψ≦1.193φ+2°; and either ψ≦−2φ−3° or −2φ+3°≦ψ.
摘要翻译： 声波装置包括由具有欧拉角（φ，θ，ψ）的铌酸锂材料制成的压电基板，设置在压电基板上用于激发波长λ的主要声波的电极，以及设置在 压电基片覆盖电极。 保护层的厚度大于0.27λ。 欧拉角满足-100°≤θ≤-60°; 1.193φ-2°≤ψ≤1.193φ+ 2°; ψ≤-2φ-3°或-2φ+ 3°≤ψ。
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公开(公告)号：US20130249647A1
公开(公告)日：2013-09-26
申请号：US13992624
申请日：2012-03-05
IPC分类号： H03H9/54
CPC分类号： H01L41/047 , H03H9/02559 , H03H9/02834 , H03H9/02858 , H03H9/02881 , H03H9/02984 , H03H9/02992 , H03H9/54
摘要： In an acoustic wave device, a high-order transverse mode wave which is an unnecessary wave is suppressed. The acoustic wave device includes: a piezoelectric substrate; at least one pair of IDT electrodes formed on the piezoelectric substrate; and a dielectric film which covers at least a part of the piezoelectric substrate and the IDT electrodes, and the IDT electrodes each has a plurality of electrode fingers. The dielectric film covers at least an area in which the electrode fingers are arranged interleaved with each other. An acoustic velocity of an acoustic wave in an intersection area, within the region, which is a portion from ends of the electrode fingers to a predetermined length or more inward from the ends, is greater than an acoustic velocity of an acoustic wave in an edge area including end portions of the electrode fingers.
摘要翻译： 在声波装置中，抑制了作为不必要波的高阶横波模式波。 声波装置包括：压电基板; 形成在所述压电基板上的至少一对IDT电极; 以及覆盖压电基板和IDT电极的至少一部分的电介质膜，并且IDT电极各自具有多个电极指。 电介质膜至少覆盖电极指彼此交错布置的区域。 在从端部的端部到预定长度或从端部向内的部分的区域内的交叉区域中的声波的声速大于边缘中的声波的声速 区域包括电极指的端部。
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公开(公告)号：US09065424B2
公开(公告)日：2015-06-23
申请号：US13992624
申请日：2012-03-05
CPC分类号： H01L41/047 , H03H9/02559 , H03H9/02834 , H03H9/02858 , H03H9/02881 , H03H9/02984 , H03H9/02992 , H03H9/54
摘要： In an acoustic wave device, a high-order transverse mode wave which is an unnecessary wave is suppressed. The acoustic wave device includes: a piezoelectric substrate; at least one pair of IDT electrodes formed on the piezoelectric substrate; and a dielectric film which covers at least a part of the piezoelectric substrate and the IDT electrodes, and the IDT electrodes each has a plurality of electrode fingers. The dielectric film covers at least an area in which the electrode fingers are arranged interleaved with each other. An acoustic velocity of an acoustic wave in an intersection area, within the region, which is a portion from ends of the electrode fingers to a predetermined length or more inward from the ends, is greater than an acoustic velocity of an acoustic wave in an edge area including end portions of the electrode fingers.
摘要翻译： 在声波装置中，抑制了作为不必要波的高阶横波模式波。 声波装置包括：压电基板; 形成在所述压电基板上的至少一对IDT电极; 以及覆盖压电基板和IDT电极的至少一部分的电介质膜，并且IDT电极各自具有多个电极指。 电介质膜至少覆盖电极指彼此交错布置的区域。 在从端部的端部到预定长度或从端部向内的部分的区域内的交叉区域中的声波的声速大于边缘中的声波的声速 区域包括电极指的端部。
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公开(公告)号：US09083314B2
公开(公告)日：2015-07-14
申请号：US13509641
申请日：2010-11-10
CPC分类号： H03H9/725
摘要： An elastic wave filter device includes a longitudinally coupled resonator-type elastic wave filter formed on a piezoelectric substrate; and a ladder-type elastic wave filter connected to the resonator-type elastic wave filter. The resonator-type filter includes an input IDT and an output IDT. The ladder-type filter includes a series arm resonator and a parallel arm resonator. A first ground electrode connected to the parallel arm resonator is electrically separated from a second ground electrode connected to at least one of the input IDT and the output IDT.
摘要翻译： 弹性波滤波器装置包括形成在压电基片上的纵向耦合的谐振器型弹性波滤波器; 连接到谐振器型弹性波滤波器的梯形弹性波滤波器。 谐振器型滤波器包括输入IDT和输出IDT。 梯型滤波器包括串联臂谐振器和并联臂谐振器。 连接到并联臂谐振器的第一接地电极与连接到输入IDT和输出IDT中的至少一个的第二接地电极电隔离。
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公开(公告)号：US08531252B2
公开(公告)日：2013-09-10
申请号：US12668699
申请日：2008-07-08
CPC分类号： H04B1/0057
摘要： A small antenna duplexer that includes antenna terminal, first filter electrically connected to this antenna terminal and passing a first frequency band, second filter electrically connected to antenna terminal and passing a second frequency band, and third filter electrically connected to antenna terminal and passing a third frequency band. First filter and third filter are used for one band, and second filter and third filter are used for another band.
摘要翻译： 一种小型天线双工器，包括天线端子，第一滤波器电连接到该天线端子并通过第一频带，第二滤波器电连接到天线端子并通过第二频带，以及第三滤波器，电连接到天线端子并通过第三 频带。 第一滤波器和第三滤波器用于一个频带，第二滤波器和第三滤波器用于另一频带。
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公开(公告)号：US20100188165A1
公开(公告)日：2010-07-29
申请号：US12668699
申请日：2008-07-08
CPC分类号： H04B1/0057
摘要： A small antenna duplexer that includes antenna terminal, first filter electrically connected to this antenna terminal and passing a first frequency band, second filter electrically connected to antenna terminal and passing a second frequency band, and third filter electrically connected to antenna terminal and passing a third frequency band. First filter and third filter are used for one band, and second filter and third filter are used for another band.
摘要翻译： 一种小型天线双工器，包括天线端子，第一滤波器电连接到该天线端子并通过第一频带，第二滤波器电连接到天线端子并通过第二频带，以及第三滤波器，电连接到天线端子并通过第三 频带。 第一滤波器和第三滤波器用于一个频带，第二滤波器和第三滤波器用于另一频带。
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公开(公告)号：US20120313724A1
公开(公告)日：2012-12-13
申请号：US13509641
申请日：2010-11-10
CPC分类号： H03H9/725
摘要： An elastic wave filter device includes a longitudinally coupled resonator-type elastic wave filter formed on a piezoelectric substrate; and a ladder-type elastic wave filter connected to the resonator-type elastic wave filter. The resonator-type filter includes an input IDT and an output IDT. The ladder-type filter includes a series arm resonator and a parallel arm resonator. A first ground electrode connected to the parallel arm resonator is electrically separated from a second ground electrode connected to at least one of the input IDT and the output IDT.
摘要翻译： 弹性波滤波器装置包括形成在压电基片上的纵向耦合的谐振器型弹性波滤波器; 连接到谐振器型弹性波滤波器的梯形弹性波滤波器。 谐振器型滤波器包括输入IDT和输出IDT。 梯型滤波器包括串联臂谐振器和并联臂谐振器。 连接到并联臂谐振器的第一接地电极与连接到输入IDT和输出IDT中的至少一个的第二接地电极电隔离。
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公开(公告)号：US20100219901A1
公开(公告)日：2010-09-02
申请号：US12681182
申请日：2008-09-26
IPC分类号： H03H9/70
CPC分类号： H03H9/0576 , H03H9/725
摘要： A duplexer according to the present invention includes: an acoustic wave element having a first terminal and a second terminal; a substrate mounting the acoustic wave element on the surface; a first columnar conductor electrically connected to the first terminal, and drawn to a back surface of the substrate, while being buried partially in the substrate; a second columnar conductor electrically connected to the second terminal, and drawn to the back surface of the substrate, while being buried partially in the substrate; a first ground pattern region arranged between the first columnar conductor drawn part and the second columnar conductor drawn part on the back surface of the substrate; a second ground pattern region electrically connected to the first ground pattern region on the back surface of the substrate and arranged in the part not including the part between the first columnar conductor drawn part and the second columnar conductor drawn part; and a third columnar conductor electrically connected to the first ground pattern region, while being buried partially in the substrate.
摘要翻译： 根据本发明的双工器包括：具有第一端子和第二端子的声波元件; 将声波元件安装在表面上的基板; 电连接到第一端子的第一柱状导体，并被部分地埋设在基板中，并被拉到基板的背面; 电连接到第二端子的第二柱状导体，并被部分地埋设在基板中，并被拉到基板的背面; 布置在所述基板的背面上的所述第一柱状导体拉出部和所述第二柱状导体拉伸部之间的第一接地图案区域; 电连接到基板的背面上的第一接地图案区域并布置在不包括第一柱状导体拉出部分和第二柱状导体拉出部分之间的部分中的第二接地图案区域; 以及第三柱状导体，其电连接到所述第一接地图案区域，同时被部分地掩埋在所述衬底中。
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