公开(公告)号：US08587389B2

公开(公告)日：2013-11-19

申请号：US12675110

申请日：2008-08-29

Applicant: Wataru Koga ,  Yuuko Yokota ,  Motoki Itou ,  Yoshifumi Yamagata

Inventor： Wataru Koga ,  Yuuko Yokota ,  Motoki Itou ,  Yoshifumi Yamagata

IPC: H03H9/00 ,  H01L41/00

CPC classification number: H03H9/725 ,  H03H9/0576

Abstract: The branching filter has the piezoelectric substrate having the main surface on which there are formed a transmission filter, which includes an input electrode and an antenna electrode, and a reception filter, which includes an output electrodes and the antenna electrode. The branching filter also has the mounting substrate having, on a first main surface, a first electrode group that is connected to the transmission filter and reception filter and that is formed symmetrical with respect to a line when viewed from the above, and also having, on a second main surface locating on the opposite side to the first main surface, a second electrode group that is connected to the circuit interconnects of an external circuit board and that is formed symmetrical with respect to a line when viewed from the above.

Abstract translation: 分路滤波器具有主表面的压电基板，其上形成有包括输入电极和天线电极的透射滤光器，以及包括输出电极和天线电极的接收滤波器。 分支滤波器还具有安装基板，其在第一主表面上具有连接到透射滤光器和接收滤光器的第一电极组，并且当从上方观察时相对于线对称地形成， 在位于与第一主表面相反一侧的第二主表面上的第二电极组，连接到外部电路板的电路互连件并且当从上面观察时相对于线形成对称的第二电极组。

公开(公告)号：US20110109400A1

公开(公告)日：2011-05-12

申请号：US12675110

申请日：2008-08-29

Applicant: Wataru Koga ,  Yuuko Yokota ,  Motoki Itou ,  Yoshifumi Yamagata

Inventor： Wataru Koga ,  Yuuko Yokota ,  Motoki Itou ,  Yoshifumi Yamagata

IPC: H03H9/205 ,  H03H9/54 ,  H03H7/38

CPC classification number: H03H9/725 ,  H03H9/0576

Abstract: To provide a branching filter enabling sharing of the same mounting substrate between the normal arrangement and the mirror arrangement that is symmetric to the normal arrangement of an electrode group formed on a main surface of a piezoelectric substrate and a method for manufacturing the same. The branching filter 1 has the piezoelectric substrate 20 having the main surface on which there are formed a transmission filter 26, which includes an input electrode 22 and an antenna electrode 23, and a reception filter 27, which includes an output electrodes 24, 25 and the antenna electrode 23. The branching filter 1 also has the mounting substrate 40 having, on a first main surface, a first electrode group that is connected to the transmission filter 26 and reception filter 27 and that is formed symmetrical with respect to a line when viewed from the above, and also having, on a second main surface locating on the opposite side to the first main surface, a second electrode group that is connected to the circuit interconnects of an external circuit board and that is formed symmetrical with respect to a line when viewed from the above.

Abstract translation: 提供一种分支滤波器，其使得能够在与压电基板的主表面上形成的电极组的正常布置对称的正常布置和反射镜布置之间共享相同的安装基板及其制造方法。 分路滤波器1具有主表面的压电基板20，其上形成有包括输入电极22和天线电极23的透射滤光器26和接收滤光器27，其包括输出电极24,25和 分支滤波器1还具有安装基板40，其在第一主表面上具有连接到透射滤光器26和接收滤光器27的第一电极组，并且相对于线对称地形成 并且在与第一主表面相对的一侧的第二主表面上还具有第二电极组，该第二电极组连接到外部电路板的电路互连件，并且相对于第一主表面对称地形成 从上方观察时。

公开(公告)号：US20080238572A1

公开(公告)日：2008-10-02

申请号：US12078232

申请日：2008-03-28

Applicant: Masayuki Funami ,  Takeshi Takanoshita ,  Yuuko Yokota

Inventor： Masayuki Funami ,  Takeshi Takanoshita ,  Yuuko Yokota

IPC: H03H9/72

CPC classification number: H03H9/6483 ,  H03H9/725

Abstract: A surface acoustic wave device includes a first surface acoustic wave filter forming a ladder filter circuit; and a second surface acoustic wave filter having a passband at a frequency range higher than that of the first surface acoustic wave filter. The first surface acoustic wave filter includes a series-arm surface acoustic wave resonator, a parallel-arm surface acoustic wave resonator and an additional surface acoustic wave resonator. The series-arm surface acoustic wave resonator is on a series arm of the ladder filter circuit and includes an IDT electrode. The parallel-arm surface acoustic wave resonator is on a parallel arm of the ladder filter circuit and includes an IDT electrode. The additional surface acoustic wave resonator includes an IDT electrode, is connected in parallel with the series-arm surface acoustic wave resonator, and has a resonance frequency higher than the frequency range of the passband of the second surface acoustic wave filter.

Abstract translation: 表面声波装置包括形成梯形滤波器电路的第一声表面波滤波器; 以及具有比第一声表面波滤波器的频率高的通带的第二声表面波滤波器。 第一表面声波滤波器包括串联臂表面声波谐振器，平行臂声表面波谐振器和附加声表面波谐振器。 串联臂表面声波谐振器在梯形滤波电路的串联臂上，并包括IDT电极。 平行臂声表面波谐振器位于梯形滤波器电路的并联臂上，并包括IDT电极。 所述附加声表面波谐振器包括与所述串联臂声表面波谐振器并联的IDT电极，并且具有高于所述第二声表面波滤波器的通带的频率范围的谐振频率。

公开(公告)号：US07389570B2

公开(公告)日：2008-06-24

申请号：US11169141

申请日：2005-06-27

Applicant: Yuuko Yokota ,  Motoki Ito ,  Kiyohiro Iioka ,  Wataru Koga ,  Shigehiko Nagamine

Inventor： Yuuko Yokota ,  Motoki Ito ,  Kiyohiro Iioka ,  Wataru Koga ,  Shigehiko Nagamine

IPC: H03H3/08

CPC classification number: H03H9/02913 ,  H03H3/08 ,  H03H9/0576 ,  H03H9/72 ,  H03H9/725 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/4908 ,  Y10T29/4913 ,  Y10T29/49146 ,  Y10T29/49155

Abstract: After electrode patterning on an electrode forming surface of a piezoelectric substrate 2 (FIG. 1(b)), a conductor layer is formed on an electrode non-forming surface of the piezoelectric substrate 2 (FIG. 1(c)). After forming the conductor layer, the conductor layer formed on the other surface is removed (FIG. 1(f)) after at least one step (FIG. 1(e)), and thereafter, dicing for separation into elements and mounting on a mounting substrate are carried out. By removing all the conductor layer on the other surface of the piezoelectric substrate, the out-of-passband attenuation and isolation performance can be significantly improved.

Abstract translation: 在压电基板2的电极形成表面上的电极图案化之后（图1（b）），在压电基板2的非电极形成表面上形成导体层（图1（c））。 在形成导体层之后，在至少一个步骤（图1（e））之后，除去形成在另一个表面上的导体层（图1（f）），然后，分离成元件并安装在导体层上 执行安装基板。 通过去除压电基板的另一表面上的所有导体层，可以显着地提高通带衰减和隔离性能。

公开(公告)号：US07301421B2

公开(公告)日：2007-11-27

申请号：US11169160

申请日：2005-06-28

Applicant: Yuuko Yokota ,  Masayuki Funami ,  Takanori Ikuta ,  Wataru Koga ,  Yoshifumi Yamagata ,  Motoki Ito ,  Kiyohiro Iioka

Inventor： Yuuko Yokota ,  Masayuki Funami ,  Takanori Ikuta ,  Wataru Koga ,  Yoshifumi Yamagata ,  Motoki Ito ,  Kiyohiro Iioka

IPC: H03H9/72 ,  H03H9/64

CPC classification number: H03H9/02921 ,  H01L2224/97 ,  H01L2924/16195 ,  H03H3/08 ,  H03H9/02874 ,  H03H9/0576 ,  H03H9/059 ,  H03H9/1085 ,  H03H9/72 ,  H03H9/725

Abstract: A conductor layer 10 is provided so as to prevent pyroelectric destruction occurring in the steps of manufacturing a surface acoustic wave element 1 on the other surface opposite to an IDT electrode formation surface of a piezoelectric substrate 2. At this time, the conductor layer 10 is formed, except for a region 5a opposed to an input electrode section 5 in a filter region 9 and/or a region 6a opposed to an output electrode section 6. This allows a coupling amount between the input electrode section 5 and the output electrode section 6 due to a parasitic capacitance formed between the input electrode section 5 and the output electrode section 6 in the filter region 9 to be reduced, thereby allowing the out-of-band attenuation characteristics of a surface acoustic wave device to be improved.

Abstract translation: 在与压电基板2的IDT电极形成面相反的另一面上制造表面声波元件1的步骤中，设置导体层10，以防止发生热电破坏。 此时，除了与输出电极部6相对的过滤器区域9和/或区域6a中的与输入电极部5相对的区域5a之外，还形成导体层10。 这允许由于在滤波器区域9中形成的输入电极部分5和输出电极部分6之间形成的寄生电容而使输入电极部分5与输出电极部分6之间的耦合量减小，从而允许 提高声表面波器件的带衰减特性。

公开(公告)号：US20060214748A1

公开(公告)日：2006-09-28

申请号：US11392484

申请日：2006-03-28

Applicant: Masayuki Funami ,  Yuuko Yokota ,  Kiyohiro Iioka

Inventor： Masayuki Funami ,  Yuuko Yokota ,  Kiyohiro Iioka

IPC: H03H9/64

CPC classification number: H03H9/725 ,  H03H9/02771 ,  H03H9/0576 ,  H03H9/643

Abstract: Disclosed is a surface acoustic wave resonator which comprises, on a piezoelectric substrate 19, an IDT electrode 1 including bus bar electrodes 12a, reflector electrodes 2 disposed to be adjacent to both sides of the IDT electrode 1 in a main propagation direction F of surface acoustic waves at the IDT electrode 1, and auxiliary reflector electrodes 3 that are disposed at four positions external to the reflector electrodes 2 on virtual straight lines extending from the bus bar electrodes 12a of the IDT electrode 1 in an inclined manner so that the periodic direction G of periodically arranged electrodes 14b is oriented toward the IDT electrode 1.

Abstract translation: 公开了一种表面声波谐振器，其在压电基板19上包括IDT电极1，其包括汇流条电极12a，反射器电极2，该反射器电极2设置成与IDT电极1的主表面的主传播方向F相邻 IDT电极1的声波和辅助反射器电极3设置在反射器电极2的外部的四个位置处，以从IDT电极1的汇流条电极12a倾斜的方式延伸的虚拟直线上，使得周期性 周向布置的电极14b的方向G朝向IDT电极1。

公开(公告)号：US20110193650A1

公开(公告)日：2011-08-11

申请号：US13056633

申请日：2009-07-30

Applicant: Takeshi Takenoshita ,  Yuuko Yokota ,  Yuuji Mori

Inventor： Takeshi Takenoshita ,  Yuuko Yokota ,  Yuuji Mori

IPC: H03H9/70 ,  H03H9/72

CPC classification number: H03H9/0576 ,  H03H9/725 ,  H03H2001/0085

Abstract: [Problem] To provide a duplexer able to improve the isolation characteristic and the attenuation characteristic and a communication device using the same.[Solution] A configuration having an antenna terminal 4, a first terminal 1, and second terminals 2, 3 and provided with a first filter 5 arranged between the antenna terminal 4 and first terminal 1 and including a parallel resonator for forming a ladder type filter circuit, a second filter 6 arranged between the antenna terminal 4 and the second terminal 2 and having a passband higher than a passband of the first filter 5, and an electromagnetic coupling element 8 arranged between the parallel resonator of the first filter 5 and a ground part G and electromagnetically coupled with the antenna terminal 4.

Abstract translation: 提供能够提高隔离特性和衰减特性的双工器以​​及使用该双工器的通信设备。 [解决方案]具有天线端子4，第一端子1和第二端子2,3的配置，并且设置有布置在天线端子4和第一端子1之间的第一滤波器5，并且包括用于形成梯形滤波器的并联谐振器 布置在天线端子4和第二端子2之间并且具有高于第一滤波器5的通带的通带的第二滤波器6以及布置在第一滤波器5的并联谐振器和地之间的电磁耦合元件8 部分G并与天线端子4电磁耦合。

公开(公告)号：US07795788B2

公开(公告)日：2010-09-14

申请号：US11577982

申请日：2005-10-25

Applicant: Yuuko Yokota ,  Shigehiko Nagamine ,  Kiyo Yamahara

Inventor： Yuuko Yokota ,  Shigehiko Nagamine ,  Kiyo Yamahara

IPC: H01L41/047 ,  H03H9/25

CPC classification number: H03H9/14541

Abstract: An IDT electrode (3) on a piezoelectric substrate (2) has an electrode including first metal layers (31a, 31b) formed of titanium or a titanium alloy, or chromium or a chromium alloy and second metal layers (32a, 32b) formed of aluminum or an aluminum alloy, copper or a copper alloy, or gold or a gold alloy, which are laminated alternately. The orientation degrees in the first metal layer (31a) that is closest to the surface of the piezoelectric substrate (2) in the first metal layers (31a, 31b) and the second metal layer (32a) that is closest to the surface of the piezoelectric substrate (2) in the second metal layers (32a, 32b) are higher than the orientation degrees in the upper metal layers. As compared with the prior art where the orientation degrees in the first metal layers (31a, 31b) and the second metal layers (32a, 32b) are not considered, the power handling capability of the IDT electrode (3) can be significantly improved.

Abstract translation: 压电基板（2）上的IDT电极（3）具有包括由钛或钛合金形成的第一金属层（31a，31b）或铬或铬合金的第一金属层（31a，31b）和由 铝或铝合金，铜或铜合金，或金或金合金，其交替层压。 最接近第一金属层（31a，31b）中的压电基板（2）的表面的第一金属层（31a）和最靠近表面的第二金属层（32a）的取向度 第二金属层（32a，32b）中的压电基片（2）比上金属层中的取向度高。 与不考虑第一金属层（31a，31b）和第二金属层（32a，32b）中的取向度的现有技术相比，可以显着提高IDT电极（3）的功率处理能力。

公开(公告)号：US07307369B2

公开(公告)日：2007-12-11

申请号：US11212504

申请日：2005-08-26

Applicant: Yuuko Yokota ,  Motoki Ito ,  Shigehiko Nagamine ,  Masayuki Funami ,  Kiyohiro Iioka

Inventor： Yuuko Yokota ,  Motoki Ito ,  Shigehiko Nagamine ,  Masayuki Funami ,  Kiyohiro Iioka

IPC: H01L41/04

CPC classification number: H03H9/1085 ,  H01L2224/16225 ,  H01L2924/16195 ,  H03H3/08 ,  H03H9/02622 ,  H03H9/02874 ,  H03H9/059 ,  H03H9/1092 ,  H03H9/6483 ,  H03H9/725

Abstract: An IDT electrode 3, and an input electrode section 5 and an output electrode section 6 each connecting with the IDT electrode 3 are formed in a filter region on one main surface of a piezoelectric substrate 2, and a semiconductor layer 22 is formed on the other main surface opposite to the one main surface of the piezoelectric substrate 2. The semiconductor layer 22 makes it possible to prevent pyroelectric destruction in the device manufacturing process as well as to prevent out-of-band attenuation characteristics from being degraded.

Abstract translation: 在压电基板2的一个主表面上的过滤器区域中形成有与IDT电极3连接的IDT电极3，输入电极部5和输出电极部6，并且在另一个主表面上形成半导体层22 主表面与压电基片2的一个主表面相对。 半导体层22使得可以防止器件制造工艺中的热释电破坏以及防止带外衰减特性的劣化。

公开(公告)号：US07298231B2

公开(公告)日：2007-11-20

申请号：US11139024

申请日：2005-05-25

Applicant: Takanori Ikuta ,  Wataru Koga ,  Yuuko Yokota

Inventor： Takanori Ikuta ,  Wataru Koga ,  Yuuko Yokota

IPC: H03H9/72

CPC classification number: H03H9/725

Abstract: In a surface acoustic wave device according to the present invention, a transmitting filter element TX and a receiving filter element RX are formed on one main surface of a piezoelectric substrate 300, and are mounted by face down on an upper surface of a circuit board 200. A ground electrode 322 in the receiving filter element RX is connected to three linear via conductors 221′ formed on the circuit board 200, and a ground electrode 312 in the transmitting filter element TX is connected to a crank-shaped via conductor 211′ formed on the circuit board 200.

Abstract translation: 在本发明的声表面波装置中，在压电基板300的一个主面上形成有发送用滤波器元件TX和接收用滤波器元件RX，并且在电路基板200的上表面上正面地安装 。 接收滤波器元件RX中的接地电极322连接到形成在电路板200上的三个线性通孔导体221'，并且发送滤波器元件TX中的接地电极312连接到形成在 电路板200。