公开(公告)号：US20060189292A1

公开(公告)日：2006-08-24

申请号：US11349342

申请日：2006-02-08

申请人： Masanori Ueda ,  Osamu Kawachi ,  Kenya Hashimoto

发明人： Masanori Ueda ,  Osamu Kawachi ,  Kenya Hashimoto

IPC分类号： H04B1/10 ,  H03H9/00 ,  H04B1/16

CPC分类号： H03F3/602 ,  H01P1/20 ,  H03F3/195 ,  H03F2200/192 ,  H03F2200/372 ,  H03H7/48

摘要： An electronic circuit device includes filters, and a 90-degree hybrid circuit connected to the filters. The 90-degree hybrid circuit may have first and second output terminals. The first terminal of the 90-degree hybrid circuit is connected to an input terminal of one of the filters, and the second terminal thereof is connected to an input terminal of another one of the filters. The 90-degree hybrid circuit may include at least one of phase lines and lumped constant circuit elements.

摘要翻译： 电子电路装置包括滤波器和连接到滤波器的90度混合电路。 90度混合电路可以具有第一和第二输出端子。 90度混合电路的第一端子连接到一个滤波器的输入端子，其第二端子连接到另一个滤波器的输入端子。 90度混合电路可以包括相线和集总常数电路元件中的至少一个。

公开(公告)号：US06388545B1

公开(公告)日：2002-05-14

申请号：US09317618

申请日：1999-05-25

申请人： Osamu Kawachi ,  Masanori Ueda ,  Akira Suga

发明人： Osamu Kawachi ,  Masanori Ueda ,  Akira Suga

IPC分类号： H03H964

CPC分类号： H03H9/6436 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/16195 ,  H03H9/059 ,  H03H9/1071 ,  H03H9/25 ,  H03H9/6469 ,  H03H9/6483 ,  H03H9/6489 ,  H01L2924/00014

摘要： A SAW-filter device includes a piezoelectric substrate carrying thereon a first interdigital electrode pair connected to an input terminal and a second interdigital electrode pair connected to an output terminal. The first interdigital electrode pair is grounded to a first ground pad, while the second interdigital electrode pair is grounded to a second ground pad different from the first ground pad. The piezoelectric substrate is accommodated into a space formed in a package body, wherein the space is covered by a metal cap member connected to one of the first and second ground pads.

摘要翻译： SAW滤波器装置包括：压电基板，其承载连接到输入端子的第一叉指电极对和连接到输出端子的第二叉指电极对。 第一叉指电极对接地到第一接地焊盘，而第二叉指电极对接地到不同于第一接地焊盘的第二接地焊盘。 压电基板被容纳在形成在封装主体中的空间中，其中空间由连接到第一和第二接地焊盘之一的金属盖构件覆盖。

公开(公告)号：US06271739B1

公开(公告)日：2001-08-07

申请号：US09363751

申请日：1999-07-30

申请人： Masanori Ueda ,  Gou Endoh ,  Osamu Kawachi ,  Yoshiro Fujiwara

发明人： Masanori Ueda ,  Gou Endoh ,  Osamu Kawachi ,  Yoshiro Fujiwara

IPC分类号： H03H964

CPC分类号： H03H9/6469 ,  H03H9/0038 ,  H03H9/0042 ,  H03H9/0061 ,  H03H9/1071 ,  H03H9/25 ,  H03H9/6436 ,  H03H9/6459 ,  H03H9/6466 ,  H03H9/6489

摘要： A surface acoustic wave device supported by a package body. At least one surface acoustic wave element having interdigital electrodes disposed on a propagation path of a surface acoustic wave on the piezoelectric substrate. These interdigital electrodes include an input-side interdigital electrode connected to a ground pad on the package body and an output-side interdigital electrode connected to another ground pad on the package body.

摘要翻译： 由包装体支撑的表面声波装置。 至少一个表面声波元件，其具有设置在压电基板上的表面声波的传播路径上的叉指电极。 这些叉指电极包括连接到封装主体上的接地焊盘的输入侧交叉指状电极和连接到封装主体上的另一接地焊盘的输出侧叉指电极。

公开(公告)号：US08018120B2

公开(公告)日：2011-09-13

申请号：US12366971

申请日：2009-02-06

申请人： Akira Moriya ,  Osamu Kawachi

发明人： Akira Moriya ,  Osamu Kawachi

IPC分类号： H01L41/08

CPC分类号： H03H9/1092 ,  H01L2224/11 ,  H01L2924/16235 ,  H03H9/02574 ,  H03H9/059 ,  Y10T29/42

摘要： A surface acoustic wave device includes a piezoelectric substrate; comb electrodes provided on a first surface of the piezoelectric substrate; and an insulating film provided on at least one of the first surface of the piezoelectric substrate and a second surface thereof opposite to the first surface, the insulating film having a thickness greater than that of the piezoelectric substrate and having a linear expansion coefficient smaller than that of the piezoelectric substrate in a direction of propagation of a surface acoustic wave.

摘要翻译： 表面声波装置包括压电基片; 设置在压电基板的第一表面上的梳电极; 以及设置在压电基板的第一表面和与第一表面相对的第二表面中的至少一个上的绝缘膜，绝缘膜的厚度大于压电基板的厚度，并且具有小于压电基板的线性膨胀系数 的压电衬底在表面声波的传播方向上。

公开(公告)号：US20100038992A1

公开(公告)日：2010-02-18

申请号：US12366971

申请日：2009-02-06

申请人： Akira Moriya ,  Osamu Kawachi

发明人： Akira Moriya ,  Osamu Kawachi

IPC分类号： H01L41/04 ,  B05D5/12 ,  H01L41/22

CPC分类号： H03H9/1092 ,  H01L2224/11 ,  H01L2924/16235 ,  H03H9/02574 ,  H03H9/059 ,  Y10T29/42

摘要： A surface acoustic wave device includes a piezoelectric substrate; comb electrodes provided on a first surface of the piezoelectric substrate; and an insulating film provided on at least one of the first surface of the piezoelectric substrate and a second surface thereof opposite to the first surface, the insulating film having a thickness greater than that of the piezoelectric substrate and having a linear expansion coefficient smaller than that of the piezoelectric substrate in a direction of propagation of a surface acoustic wave.

摘要翻译： 表面声波装置包括压电基片; 设置在压电基板的第一表面上的梳电极; 以及设置在压电基板的第一表面和与第一表面相对的第二表面中的至少一个上的绝缘膜，绝缘膜的厚度大于压电基板的厚度，并且具有小于压电基板的线膨胀系数 的压电衬底在表面声波的传播方向上。

公开(公告)号：US07388456B2

公开(公告)日：2008-06-17

申请号：US11014164

申请日：2004-12-17

申请人： Hiroyuki Furusato ,  Osamu Kawachi

发明人： Hiroyuki Furusato ,  Osamu Kawachi

IPC分类号： H03H9/64

CPC分类号： H03H9/6469 ,  H03H9/0061 ,  H03H9/02921 ,  H03H9/6483

摘要： A SAW filter includes multiple SAW resonators. The multiple SAW resonators, which are connected in series, are connected any one of between a signal input terminal and a ground that is the closest thereto and between a signal output terminal and another ground that is the closest thereto. The SAW resonators have substantially equal electrostatic capacitances. It is thus possible to protect the SAW resonators without providing a sacrificial electrode for electrostatic breakdown, and thereby possible to configure the SAW filter having a high reliability against the electrostatic discharge.

摘要翻译： SAW滤波器包括多个SAW谐振器。 串联连接的多个SAW谐振器连接在信号输入端子与最靠近的信号输入端子与信号输出端子与最靠近的接地端子之间的任何一个。 SAW谐振器具有基本相等的静电电容。 因此，可以在不设置用于静电击穿的牺牲电极的情况下保护SAW谐振器，并且由此可以配置具有高静电放电可靠性的SAW滤波器。

公开(公告)号：US20050190014A1

公开(公告)日：2005-09-01

申请号：US11065363

申请日：2005-02-25

申请人： Yasuyuki Saitou ,  Osamu Kawachi

发明人： Yasuyuki Saitou ,  Osamu Kawachi

IPC分类号： H03H9/145 ,  H03H9/25 ,  H03H9/64

CPC分类号： H03H9/6483 ,  H03H9/25 ,  H03H9/643 ,  H03H9/6473 ,  H03H9/6496

摘要： A surface acoustic wave device includes a surface acoustic wave resonator. The surface acoustic wave resonator includes comb-like electrodes and reflection electrodes provided on both sides of the comb-like electrodes, and each of the reflection electrodes has at least two different pitches. It is thus possible to suppress the ripple components.

摘要翻译： 表面声波装置包括表面声波谐振器。 表面声波谐振器包括梳状电极和设置在梳状电极两侧的反射电极，并且每个反射电极具有至少两个不同的间距。 因此可以抑制纹波成分。

公开(公告)号：US20050151602A1

公开(公告)日：2005-07-14

申请号：US11033274

申请日：2005-01-12

申请人： Tomoka Hattanda ,  Osamu Kawachi

发明人： Tomoka Hattanda ,  Osamu Kawachi

IPC分类号： H03H9/25 ,  H03H9/05 ,  H03H9/10 ,  H03H9/64

CPC分类号： H03H9/059 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/14 ,  H01L2224/16225 ,  H01L2924/00014 ,  H03H9/1071 ,  H03H9/6436 ,  H03H9/6483 ,  H01L2224/05599

摘要： A surface acoustic wave (SAW) device includes a SAW chip including comb-like electrodes arranged on a piezoelectric substrate, and a package on which the SAW chip is flip-chip mounted, the package including an interconnection that connects the comb-like electrodes. Resonators are connected to signal interconnection pads through the interconnection pattern. IDTs in a three-IDT multimode filter are respectively connected to the signal interconnection pads via another interconnection pattern. The signal interconnection pads are connected to a signal interconnection provided on a chip mounting surface with bumps. Then, a part of the interconnection pattern connecting the resonators is extracted onto the package. It is thus possible to design the interconnections on the package flexibly and thereby easy to adjust the impedance of the interconnections that connect the resonators.

摘要翻译： 表面声波（SAW）器件包括：SAW芯片，其包括布置在压电基片上的梳状电极，以及封装，SAW芯片被倒装安装在该封装上，该封装件包括连接梳状电极的互连。 谐振器通过互连图案连接到信号互连焊盘。 三IDT多模式滤波器中的IDT分别经由另一互连模式连接到信号互连焊盘。 信号互连焊盘连接到设置在具有凸块的芯片安装表面上的信号互连。 然后，将连接谐振器的互连图案的一部分提取到封装上。 因此，可以灵活地设计封装上的互连，从而易于调节连接谐振器的互连的阻抗。

公开(公告)号：US20050151601A1

公开(公告)日：2005-07-14

申请号：US11014164

申请日：2004-12-17

申请人： Hiroyuki Furusato ,  Osamu Kawachi

发明人： Hiroyuki Furusato ,  Osamu Kawachi

IPC分类号： H03H9/00 ,  H03H9/145 ,  H03H9/64

CPC分类号： H03H9/6469 ,  H03H9/0061 ,  H03H9/02921 ,  H03H9/6483

摘要： A SAW filter includes multiple SAW resonators. The multiple SAW resonators, which are connected in series, are connected any one of between a signal input terminal and a ground that is the closest thereto and between a signal output terminal and another ground that is the closest thereto. The SAW resonators have substantially equal electrostatic capacitances. It is thus possible to protect the SAW resonators without providing a sacrificial electrode for electrostatic breakdown, and thereby possible to configure the SAW filter having a high reliability against the electrostatic discharge.

摘要翻译： SAW滤波器包括多个SAW谐振器。 串联连接的多个SAW谐振器连接在信号输入端子与最靠近的信号输入端子与信号输出端子与最靠近的接地端子之间的任何一个。 SAW谐振器具有基本相等的静电电容。 因此，可以在不设置用于静电击穿的牺牲电极的情况下保护SAW谐振器，并且由此可以配置具有高静电放电可靠性的SAW滤波器。

公开(公告)号：US20050110599A1

公开(公告)日：2005-05-26

申请号：US10992116

申请日：2004-11-19

申请人： Hiroshi Kanasaki ,  Osamu Kawachi

发明人： Hiroshi Kanasaki ,  Osamu Kawachi

IPC分类号： H03H9/64 ,  H03H9/00 ,  H03H9/145 ,  H03H9/25

CPC分类号： H03H9/0028 ,  H03H9/0038 ,  H03H9/0042 ,  H03H9/0057 ,  H03H9/0061 ,  H03H9/0071 ,  H03H9/02874 ,  H03H9/02913

摘要： A surface acoustic wave (SAW) filter includes a piezoelectric substrate, a first interdigital transducer (IDT) for input and a second IDT for output that are provided on the piezoelectric substrate, the first IDT and the second IDT being arranged in a propagation direction, and a shield electrode arranged between the first IDT and the second IDT and/or between interconnection lines that connect the first IDT and the second IDT, at least one of the first IDT and the second IDT being of a longitudinal coupling multi-mode type having a balanced operation. Thus, it is possible to suppress a stray capacitance between the first IDT and the second IDT, and thereby to improve the symmetry of balanced operation signals.

摘要翻译： 表面声波（SAW）滤波器包括压电基片，用于输入的第一指叉式换能器（IDT）和设置在压电基片上的第二输出IDT，第一IDT和第二IDT沿传播方向布置， 以及设置在所述第一IDT和所述第二IDT之间和/或连接所述第一IDT和所述第二IDT的互连线之间的屏蔽电极，所述第一IDT和所述第二IDT中的至少一个是纵向耦合多模式， 平衡的操作。 因此，可以抑制第一IDT和第二IDT之间的杂散电容，从而提高平衡操作信号的对称性。