公开(公告)号：US20120086309A1

公开(公告)日：2012-04-12

申请号：US13248148

申请日：2011-09-29

申请人： Toru YAMAJI ,  Mitsuhiro FURUKAWA ,  Koji KAWAKITA ,  Eiji KAWAMOTO

发明人： Toru YAMAJI ,  Mitsuhiro FURUKAWA ,  Koji KAWAKITA ,  Eiji KAWAMOTO

IPC分类号： H01L41/053

CPC分类号： H03H9/1092

摘要： An acoustic wave element of the present invention includes a piezoelectric substrate, an IDT electrode, a sidewall, a lid, and an adhesive layer. The IDT electrode is provided on the piezoelectric substrate. The sidewall is provided around the IDT electrode above the piezoelectric substrate. The lid is provided above the sidewall so as to cover a space above the IDT electrode. The adhesive layer is made of an adhesive provided between the lid and the sidewall. The top surface of the sidewall has a groove. The groove is filled with an adhesive, which reduces the protrusion amount of the adhesive.

摘要翻译： 本发明的声波元件包括压电基板，IDT电极，侧壁，盖子和粘合剂层。 IDT电极设置在压电基板上。 侧壁设置在压电基板上方的IDT电极周围。 盖子设置在侧壁上方以覆盖IDT电极上方的空间。 粘合剂层由设置在盖和侧壁之间的粘合剂制成。 侧壁的顶面具有凹槽。 凹槽填充有粘合剂，这降低了粘合剂的突出量。

公开(公告)号：US20110084573A1

公开(公告)日：2011-04-14

申请号：US12903326

申请日：2010-10-13

申请人： Toru YAMAJI ,  Tetsuhiro Korechika ,  Koji Kawakita ,  Eiji Kawamoto ,  Mitsuhiro Furukawa ,  Kozo Murakami

发明人： Toru YAMAJI ,  Tetsuhiro Korechika ,  Koji Kawakita ,  Eiji Kawamoto ,  Mitsuhiro Furukawa ,  Kozo Murakami

IPC分类号： H01L41/047 ,  H01L41/053

CPC分类号： H03H9/132 ,  H03H9/059 ,  H03H9/1092

摘要： An elastic wave device has the following elements: a piezoelectric substrate; an inter-digital transducer (IDT) electrode disposed on the piezoelectric substrate; internal electrodes disposed above the piezoelectric substrate and electrically connected to the IDT electrode; side walls disposed above the internal electrodes surrounding the IDT electrode; a cover disposed above the side walls so as to cover a space above the IDT electrode; an electrode base layer disposed on the internal electrodes outside the side walls; and connection electrodes disposed on the electrode base layer. Each connection electrode has a first connection electrode disposed on the electrode base layer, and a second connection electrode disposed on the first connection electrode. The horizontal sectional shape of the second connection electrode is non-circular.

摘要翻译： 弹性波器件具有以下元件：压电基片; 配置在所述压电基板上的数字式换能器（IDT）电极; 内部电极设置在压电基板上并电连接到IDT电极; 设置在围绕IDT电极的内部电极上方的侧壁; 设置在所述侧壁上方以覆盖所述IDT电极上方的空间的盖; 设置在侧壁外侧的内部电极上的电极基层; 以及设置在电极基底层上的连接电极。 每个连接电极具有设置在电极基底层上的第一连接电极和设置在第一连接电极上的第二连接电极。 第二连接电极的水平截面形状是非圆形的。

公开(公告)号：US20110221546A1

公开(公告)日：2011-09-15

申请号：US13040450

申请日：2011-03-04

申请人： Toru YAMAJI ,  Koji KAWAKITA ,  Tetsuya TSURUNARI ,  Joji FUJIWARA ,  Toru JIBU

发明人： Toru YAMAJI ,  Koji KAWAKITA ,  Tetsuya TSURUNARI ,  Joji FUJIWARA ,  Toru JIBU

IPC分类号： H03H9/64

CPC分类号： H03H9/1071 ,  H03H9/0547

摘要： An elastic wave device includes a piezoelectric substrate, an IDT electrode disposed on the piezoelectric substrate, an internal electrode disposed on the piezoelectric substrate and connected to the IDT electrode, a support pillar disposed on the piezoelectric substrate and provided around the IDT electrode, a top panel provided on the support pillar to cover a space above the IDT electrode, an insulation protector provided to cover the support pillar and the top panel, an external electrode disposed on the insulation protector, a conductor pattern disposed on the insulation protector in order to obtain inductance, and a connection electrode provided through the insulation protector, to connect the external electrode and the internal electrode to each other.

摘要翻译： 弹性波装置包括压电基板，设置在压电基板上的IDT电极，设置在压电基板上并连接到IDT电极的内部电极，设置在压电基板上并设置在IDT电极周围的支撑柱，顶部 设置在支撑柱上以覆盖IDT电极上方的空间的面板，设置成覆盖支撑柱和顶板的绝缘保护器，设置在绝缘保护器上的外部电极，设置在绝缘保护器上的导体图案，以获得 电感和通过绝缘保护器提供的连接电极，以将外部电极和内部电极彼此连接。

公开(公告)号：US20120188026A1

公开(公告)日：2012-07-26

申请号：US13353350

申请日：2012-01-19

申请人： Toru YAMAJI ,  Kazunori NISHIMURA ,  Joji FUJIWARA ,  Hiroyuki NAKAMURA

发明人： Toru YAMAJI ,  Kazunori NISHIMURA ,  Joji FUJIWARA ,  Hiroyuki NAKAMURA

IPC分类号： H03H9/72

CPC分类号： H03H9/725 ,  H01P1/205 ,  H03H9/14535 ,  H03H9/205 ,  H03H9/25 ,  H03H9/6483 ,  H04B1/0057

摘要： An antenna duplexer includes first and second filters connected to an antenna terminal. The first filter has a passband of a low frequency band. The second filter has a passband of a high frequency band. The second filter is a ladder-type filter including series-arm resonators and parallel-arm resonators. At least one parallel-arm resonator out of the parallel-arm resonators has a main resonance and an auxiliary resonance. Attenuation poles caused by the main resonance and the auxiliary resonance are within the low frequency band. This antenna duplexer has a high attenuation characteristic and a high isolation characteristic while maintaining a low insertion loss.

摘要翻译： 天线双工器包括连接到天线端子的第一和第二滤波器。 第一滤波器具有低频带的通带。 第二滤波器具有高频带的通带。 第二滤波器是包括串联谐振器和并联臂谐振器的梯形滤波器。 并联臂谐振器中的至少一个并联臂谐振器具有主谐振和辅助谐振。 由主谐振和辅助谐振引起的衰减极在低频带内。 该天线双工器具有高衰减特性和高隔离特性，同时保持低插入损耗。