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1. 发明专利

JP2005294891A Surface acoustic wave device 有权
标题翻译：表面声波设备
公开(公告)号：JP2005294891A
公开(公告)日：2005-10-20
申请号：JP2004102471
申请日：2004-03-31
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI , TANI SHOWA
IPC分类号： H03H9/64 , H03H9/145 , H03H9/25
摘要： PROBLEM TO BE SOLVED: To provide a surface acoustic wave device having a satisfactory degree of balance and having a configuration suitable for the miniaturization of a circuit substrate for mounting a surface acoustic wave device.
SOLUTION: First-fourth longitudinal resonator type surface acoustic wave filters 101-104 are juxtaposed and disposed in a direction parallel to the short side of a piezoelectric substrate 100, so that the propagation direction of a surface acoustic wave of each filter may be a direction parallel to the long side of the piezoelectric substrate 100. A first terminal 105 is disposed on one short side of the piezoelectric substrate 100. Second and third terminals 106, 107 are disposed on the other short side of the piezoelectric substrate 100.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有令人满意的平衡度并具有适合于安装声表面波装置的电路基板的小型化的构造的表面声波装置。解决方案：第一至第四纵向谐振器型声表面波滤波器101-104与压电基片100的短边平行的方向并列设置，使得每个滤波器的表面声波的传播方向可以是平行于压电基板100的长边的方向。第一端子105设置在压电基板100的一个短边上。第二和第三端子106,107设置在压电基板100的另一个短边上。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2003008390A Surface acoustic wave device and communication equipment 有权
标题翻译：表面声波设备和通信设备
公开(公告)号：JP2003008390A
公开(公告)日：2003-01-10
申请号：JP2001368285
申请日：2001-12-03
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： WATANABE HIROKI , TAKAMINE YUICHI
IPC分类号： H03H9/145 , H03H9/00 , H03H9/25 , H03H9/64 , H04Q7/32
CPC分类号： H03H9/6436 , H03H9/0042 , H03H9/14582 , H03H9/6469
摘要： PROBLEM TO BE SOLVED: To provide a surface acoustic wave device of a cascade connected resonator type where a passing band width is wide, an insertion loss and VSWR are small, electrode formation is easy and pressure-resistance deterioration in breakdown voltage is not caused easily. SOLUTION: A plurality of comb-like electrode parts 3, 4 and 5 are provided by cascade connected resonators. The pitch of a transducer fingers 10 at a part from the adjacent end of respective IDTs adjacent to each other is made to be shorter than the pitch of transducer fingers other than the parts of the parts 3 and 4, and the duty ratio of the fingers 10 at a part of the reduced pitch is set to be smaller than the duty ratio of the transducer fingers at the other parts.
摘要翻译：要解决的问题：为了提供通过带宽宽的级联连接谐振器型的声表面波器件，插入损耗和VSWR小，电极形成容易，并且不易引起击穿电压的耐压劣化。解决方案：通过级联连接的谐振器提供多个梳状电极部分3,4和5。使来自彼此相邻的各个IDT的相邻端的部分处的换能器指10的间距比除了部件3和4的部分之外的换能器指的间距短，并且手指的占空比减速部的一部分10被设定为小于其他部分的换能器指的占空比。

3. 发明专利

JP2013168692A Acoustic wave demultiplexer 审中-公开
标题翻译：声波除颤器
公开(公告)号：JP2013168692A
公开(公告)日：2013-08-29
申请号：JP2010129300
申请日：2010-06-04
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/72 , H03H9/145 , H03H9/64
CPC分类号： H03H9/0085 , H03H9/0038 , H03H9/0057 , H03H9/0071 , H03H9/14588 , H03H9/6483 , H03H9/6496 , H03H9/725
摘要： PROBLEM TO BE SOLVED: To provide an acoustic wave demultiplexer which can prevent generation of ripple in the passband of a transmission filter while enhancing steepness of filter characteristics.SOLUTION: The acoustic wave demultiplexer includes: a reception filter 10 connected between an antenna terminal 2 and first and second reception terminals 3, 4 and consisting of a longitudinal coupling resonator type acoustic wave filter; and a transmission filter 20 connected between the antenna terminal 2 and a transmission terminal 5. The reception filter 10 has first and second longitudinal coupling resonator type surface acoustic wave filters 101, 102. In the first and second longitudinal coupling resonator type surface acoustic wave filters 101, 102, a relation of λ1
摘要翻译：要解决的问题：提供一种声波解复用器，其可以防止在传输滤波器的通带中产生纹波，同时增强滤波器特性的陡度。解决方案：声波解复用器包括：接收滤波器10，连接在天线端子2和第一和第二接收端子3,4，由纵向耦合谐振器型声波滤波器构成; 以及连接在天线端子2和发送端子5之间的发送滤波器20.接收滤波器10具有第一和第二纵向耦合谐振器型表面声波滤波器101,102。在第一和第二纵向耦合谐振器型表面声波滤波器 101,102，满足λ1<λ2的关系，其中λ1是由作为与天线端子2连接的IDT的第二IDT 112,122的电极指的周期确定的声波的波长，λ2 是由作为不与天线端子2连接的IDT的第一和第三IDT 111,113,121,123的电极指的周期所决定的声波的波长。

4. 发明专利

JP2010028517A Method of manufacturing elastic wave apparatus and elastic wave apparatus 有权
标题翻译：制造弹性波形装置和弹性波形装置的方法
公开(公告)号：JP2010028517A
公开(公告)日：2010-02-04
申请号：JP2008188381
申请日：2008-07-22
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： FUKUDA SHINICHI , YAMATO HIDEJI , NAGAHAMA AKIRA , TAKAMINE YUICHI
IPC分类号： H03H3/08 , H03H9/145
摘要： PROBLEM TO BE SOLVED: To obtain a method of manufacturing an elastic wave apparatus by which electrode materials hardly corrode in resist development and reliability in electrical connection is improved. SOLUTION: The method of manufacturing an elastic wave apparatus, includes the steps of: forming a first electrode 3 constituted of a first layered conductive film obtained by layering a plurality of metal films on an upper surface of a piezoelectric substrate 1; and forming a resist layer after forming the first electrode 3, and performing patterning while using a developer to form the resist pattern layer 4 having an opening 4a; wherein, prior to the development processing, an insulating film 6 is formed to cover a side surface portion of the first electrode 3 that may be exposed in a portion wherein the opening 4a is formed, and development processing is performed while protecting the side surface of the first electrode 3 with the insulating film 6. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：为了获得制造在抗蚀剂显影中电极材料几乎不腐蚀的弹性波装置的方法，提高了电连接的可靠性。解决方案：制造弹性波装置的方法包括以下步骤：形成由通过在压电基板1的上表面上层叠多个金属膜而获得的第一层状导电膜构成的第一电极3; 在形成第一电极3之后形成抗蚀剂层，并且在使用显影剂的同时进行图案化以形成具有开口4a的抗蚀剂图案层4; 其中，在显影处理之前，形成绝缘膜6以覆盖可能在其中形成开口4a的部分中暴露的第一电极3的侧表面部分，并且在保护侧表面的同时进行显影处理具有绝缘膜6的第一电极3。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2007142491A Surface acoustic wave device and manufacturing method of same 审中-公开
标题翻译：表面声波装置及其制造方法
公开(公告)号：JP2007142491A
公开(公告)日：2007-06-07
申请号：JP2005329157
申请日：2005-11-14
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI
IPC分类号： H03H3/08 , H03H9/145 , H03H9/64
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a surface acoustic wave filter device which can not only improve frequency temperature characteristic but also realize simplification of manufacturing processes and cost reduction.
SOLUTION: The method of manufacturing the surface acoustic wave device comprises a step of forming an IDT (interdigital transducer) electrode 7b and a first wiring pattern 11 on a piezoelectric substrate 2; a step of forming an insulation film 10 so as to cover the IDT electrode 7b and the first wiring pattern 11; a step of etching the insulation film 10 so that the insulation film may remain on a portion where the IDT electrode 7b is formed and one part of the first wiring pattern 11; a step of forming a second wiring pattern 12 to be connected to a potential different from that of the first wiring pattern 11 so as not to contact the first wiring pattern 11 on a portion where insulation film 10 remains on the first wiring pattern 11.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造表面声波滤波器装置的方法，其不仅可以提高频率温度特性，而且可以实现制造工艺的简化和降低成本。解决方案：制造声表面波器件的方法包括在压电基片2上形成IDT（叉指式换能器）电极7b和第一布线图案11的步骤; 形成绝缘膜10以覆盖IDT电极7b和第一布线图案11的步骤; 蚀刻绝缘膜10使得绝缘膜可能保留在形成有IDT电极7b的部分和第一布线图案11的一部分上的步骤; 在绝缘膜10保留在第一布线图案11上的部分上，形成与第一布线图案11不同的电位连接的第二布线图案12，以便不与第一布线图案11接触的步骤。 P>版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006254410A Balanced elastic wave filter 审中-公开
标题翻译：平衡弹性波滤波器
公开(公告)号：JP2006254410A
公开(公告)日：2006-09-21
申请号：JP2006008313
申请日：2006-01-17
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/64 , H03H9/145 , H03H9/25
摘要： PROBLEM TO BE SOLVED: To obtain a structure capable of effectively suppressing undesired ripple appearing in a pass band in a longitudinal coupling resonator type surface elastic wave filter having a balanced-unbalanced conversion function.
SOLUTION: The surface elastic wave filter is made electrode fingers or signal electrode fingers in such a way that one side of ends of first, third, and fifth IDTs 11, 13, and 15 are connected with an unbalanced signal terminal 5, and second and fourth IDTs 12, 14 are connected with first and second balanced signal terminals 6, 7, and further an outsidemost electrode finger on the opposite side of the second IDT12, outsidemost electrode fingers of the first and third IDTs 11, 13, and an outsidemost electrode finger of the fourth IDT 14 are connected with earth. Outsidemost electrode fingers of the IDTs13, 15 are made electrode fingers connected with the signal electrode finger or earth potential. In a part where the IDTs 13, 14 are adjacent to each other, series weighting is applied to an outsidemost electrode finger 14a. In a part where the IDTs14, 15 are adjacent to each other, series weighting is applied to an outsidemost electrode finger 14b.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：获得能够有效地抑制具有平衡不平衡转换功能的纵向耦合谐振器型表面弹性波滤波器中出现在通带中出现的不希望的波动的结构。解决方案：将表面弹性波滤波器制成电极指或信号电极指，使得第一，第三和第五IDT 11,13和15的端部的一侧与不平衡信号端子5连接，第二和第四IDT12,14与第一和第二平衡信号端子6,7连接，并且在第二IDT12的相反侧上还有一个外部电极指，第一和第三IDT11,13的外部电极指和第四IDT14的外部电极指与地面连接。 IDT13,15的外部电极指被制成与信号电极指或地电位连接的电极指。在IDT13,14彼此相邻的部分中，对外部电极指14a施加串联加权。在IDT14,15彼此相邻的部分中，串联加权被施加到外部电极指14b。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005223810A Surface acoustic wave device, and communication equipment 有权
标题翻译：表面声波设备和通信设备
公开(公告)号：JP2005223810A
公开(公告)日：2005-08-18
申请号：JP2004031861
申请日：2004-02-09
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI , HIRAMOTO MASAHIRO , SHIBAHARA TERUHISA
IPC分类号： H03H9/145
摘要： PROBLEM TO BE SOLVED: To provide a surface acoustic wave device and communication equipment including an unbalanced/balanced conversion function with which a degree of balancing can be enhanced.
SOLUTION: Longitudinally coupling resonator type surface acoustic wave filtering elements 201, 202 having a plurality of interdigital electrode portions 207-209, 220-222 are provided respectively on a piezoelectric substrate 200 so as to have the unbalanced/balanced conversion function. Single-port surface acoustic wave resonators 801, 802 including interdigital electrode portions 803, 806 wherein a bus bar at one side is bisected, are provided while being connected to the surface acoustic wave filtering elements 201, 202. In the single-port surface acoustic wave resonators 801, 802, at least a set of their bisected bus bars 804, 805, 807, 808 is asymmetric.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种包括不平衡/平衡转换功能的表面声波装置和通信设备，能够提高平衡度。解决方案：具有多个叉指电极部分207-209,220-222的谐振器型表面声波滤波元件201,202的纵向耦合分别设置在压电基板200上，以具有不平衡/平衡转换功能。在连接到表面声波滤波元件201,202的同时，提供包括叉指电极部分803,806的单端口声表面波谐振器801,802，其中一侧的母线被二等分。在单端口表面声学波形谐振器801,802至少一组它们的二等分母线804,805,807,808是不对称的。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004088551A Surface acoustic wave device and communication equipment 有权
公开(公告)号：JP2004088551A
公开(公告)日：2004-03-18
申请号：JP2002248204
申请日：2002-08-28
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI
IPC分类号： H03H9/00 , H03H9/02 , H03H9/145 , H03H9/25 , H03H9/64
CPC分类号： H03H9/0038 , H01L24/97 , H01L2224/05568 , H01L2224/05573 , H01L2224/16225 , H01L2924/00014 , H01L2924/16195 , H03H9/0071 , H03H9/059 , H03H9/1085 , H03H9/14588 , H03H9/6436 , H01L2224/05599
摘要： PROBLEM TO BE SOLVED: To provide a surface acoustic wave device for improving the transmitting characteristics of a pass band. SOLUTION: A transversely coupled resonator type surface acoustic wave filter 201 having at least three comb-shaped electrode parts 205, 206, and 207 is arranged on a piezoelectric substrate 301. At least one surface acoustic wave resonator 203 is arranged on the surface acoustic wave filter 201 so as to be serially connected to at least two comb-shaped electrode parts 205 and 207 of the surface acoustic wave filter 201. The value of a parasitic capacity inserted between the surface acoustic wave filter 201 and the surface acoustic wave resonator 203 is set so as to be 6.5×10 2 /f 0 [pF] (in this case, f 0 is the central frequency[MHz] of the pass band of the surface acoustic wave filter 201). COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2003069385A Surface acoustic wave filter 有权
标题翻译：表面声波滤波器
公开(公告)号：JP2003069385A
公开(公告)日：2003-03-07
申请号：JP2002114934
申请日：2002-04-17
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI
IPC分类号： H01L41/09 , H01L41/18 , H03H9/00 , H03H9/145 , H03H9/64
CPC分类号： H03H9/0042 , H03H9/0038 , H03H9/0071 , H03H9/14582 , H03H9/6436
摘要： PROBLEM TO BE SOLVED: To provide a surface acoustic wave filter in which the flatness of an insertion loss in a pass band can be enhanced and the fluctuation of the insertion loss in the pass band can be reduced even when the filter characteristics are changed due to temperature change.
SOLUTION: The surface acoustic wave filter 1 is provided with a longitudinally-coupled resonator mode SAW filter portion 101 having at least two interdigital transducers (IDTs) disposed on a piezoelectric substrate 2 and with at least one SAW resonator 104 electrically connected in parallel with the SAW filter portion 101 such that the at least one SAW resonator 104 is disposed between an input terminal or an output terminal and the SAW filter portion 101. The resonance point of the SAW resonator is disposed in the pass band of the SAW filter portion 101.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种表面声波滤波器，其中可以提高通带中的插入损耗的平坦度，并且即使当由于滤波器特性变化而导致通带中的插入损耗的波动也可以减小温度变化。解决方案：表面声波滤波器1设置有纵向耦合谐振模式SAW滤波器部分101，其具有设置在压电基片2上的至少两个叉指换能器（IDT），并且至少一个SAW谐振器104与 SAW滤波器部分101，使得至少一个SAW谐振器104设置在输入端子或输出端子与SAW滤波器部分101之间。SAW谐振器的谐振点设置在SAW滤波器部分101的通带中。

10. 发明专利

JP2003069383A Surface acoustic wave filter 审中-公开
标题翻译：表面声波滤波器
公开(公告)号：JP2003069383A
公开(公告)日：2003-03-07
申请号：JP2001260147
申请日：2001-08-29
申请人： Murata Mfg Co Ltd , 株式会社村田製作所
发明人： TAKAMINE YUICHI , OUCHI HOUBUN
IPC分类号： H03H9/64 , H03H9/00 , H03H9/145 , H03H9/25
CPC分类号： H03H9/0071 , H03H9/0038 , H03H9/0042 , H03H9/0061 , H03H9/0085 , H03H9/14582 , H03H9/14588
摘要： PROBLEM TO BE SOLVED: To provide a surface acoustic wave filter that has a balanced-to- unbalanced conversion function and improves the balance between balance signal terminals 111 and 112. SOLUTION: A surface acoustic wave filter 110 having three interdigital electrodes 103, 104, 105 along a propagation direction of a surface acoustic wave is provided onto a piezoelectric substrate. The surface acoustic wave filter 101 is provided with an unbalanced signal terminal 110 and the balanced signal terminals 111, 112. At least one of the three interdigital electrodes 103, 104, 105 is provided so that its phase is different from the others. Reflectors 106, 107 are respectively provided to have the interdigital electrodes 103, 104, 105 inbetween from both sides. The reflectors 106, 107 are connected to the ground.
摘要翻译：要解决的问题：提供具有平衡 - 不平衡转换功能并改善平衡信号端子111和112之间的平衡的表面声波滤波器。解决方案：具有三个叉指电极103,104的表面声波滤波器110， 105沿着声表面波的传播方向设置在压电基板上。表面声波滤波器101设置有不平衡信号端子110和平衡信号端子111,112。三个交叉指状电极103,104,105中的至少一个设置成使得其相位与其他相位不同。反射器106,107分别设置成在两侧之间具有叉指状电极103,104,105。反射器106,107连接到地面。

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