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公开(公告)号：US20080143215A1
公开(公告)日：2008-06-19
申请号：US11976608
申请日：2007-10-25
申请人： Motoaki Hara , Tokihiro Nishihara , Masanori Ueda , Go Endo
发明人： Motoaki Hara , Tokihiro Nishihara , Masanori Ueda , Go Endo
IPC分类号： H01L41/047 , H03H9/15 , H03H9/54
摘要： A piezoelectric thin-film resonator includes: a lower electrode supported by a substrate, a space being defined below the lower electrode; a piezoelectric film provided on the lower electrode and the substrate; and an upper electrode provided on the piezoelectric film so as to form a resonance portion in which the upper electrode faces the lower electrode across the piezoelectric film. At least one of the lower electrode and the upper electrode has an interconnection portion used to extract a signal from the resonance portion and located above the space. The at least one of the lower electrode and the upper electrode has a first mass per unit area in which the at least one of the lower electrode and the upper electrode contacts the piezoelectric film and a second mass per unit area in the resonance portion. The first mass per unit area is smaller than the second mass per unit area.
摘要翻译： 压电薄膜谐振器包括：由基板支撑的下电极，在下电极下方限定空间; 设置在下电极和基板上的压电膜; 以及设置在压电膜上的上电极，以形成谐振部分，其中上电极面向下电极穿过压电膜。 下电极和上电极中的至少一个具有用于从谐振部分提取信号并位于空间上方的互连部分。 下电极和上电极中的至少一个具有每单位面积的第一质量，其中下电极和上电极中的至少一个与压电膜接触，并且在谐振部分中每单位面积具有第二质量。 每单位面积的第一个质量小于每单位面积的第二个质量。
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公开(公告)号：US09236848B2
公开(公告)日：2016-01-12
申请号：US13590897
申请日：2012-08-21
CPC分类号： H03H9/0095 , H03H3/02 , H03H9/585 , H03H9/587 , H03H9/706 , H03H2003/021
摘要： The filter includes: a primary transducer connected to a primary terminal; a secondary transducer connected to a plurality of secondary terminals; and a coupling transducer for mechanically coupling the primary transducer and the secondary transducer.
摘要翻译： 滤波器包括：连接到主终端的主换能器; 连接到多个次级端子的次级换能器; 以及用于机械耦合主换能器和次换能器的耦合换能器。
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公开(公告)号：US20110227807A1
公开(公告)日：2011-09-22
申请号：US13131833
申请日：2008-11-28
CPC分类号： H03H9/605 , H03H9/0571 , H03H9/0576 , H03H9/564 , H03H9/568 , H03H9/6483
摘要： A ladder type filter includes series resonators S1˜S4 connected in series between an input terminal In and an output terminal Out, parallel resonators P1˜P3 connected in parallel between the input terminal In and the output terminal Out, a resonator RP connected in series with the series resonators S1˜S4 between the input terminal and the output terminal, the resonator RP having a resonance frequency lower than resonance frequencies of the series resonators S1˜S4, and an inductor Lp connected in parallel with the resonator. According to the present ladder filter, signals having frequencies away from the pass band can be suppressed by an attenuation pole formed by the inductor. It is further possible to suppress the insertion loss in the pass band by the resonator.
摘要翻译： 梯形滤波器包括串联连接在输入端子In和输出端子Out之间的串联谐振器S1〜S4，并联在输入端子In和输出端子Out之间的并联谐振器P1〜P3，与 输入端子和输出端子之间的串联谐振器S1〜S4，谐振器RP的谐振频率低于串联谐振器S1〜S4的谐振频率，以及与谐振器并联连接的电感器Lp。 根据本梯形滤波器，可以通过由电感器形成的衰减极来抑制具有远离通带的频率的信号。 还可以通过谐振器抑制通带中的插入损耗。
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公开(公告)号：US07755453B2
公开(公告)日：2010-07-13
申请号：US11812514
申请日：2007-06-19
申请人： Masafumi Iwaki , Tokihiro Nishihara , Masanori Ueda , Go Endo
发明人： Masafumi Iwaki , Tokihiro Nishihara , Masanori Ueda , Go Endo
CPC分类号： H03H9/706 , H03H9/0571
摘要： A duplexer includes an antenna terminal, a first filter connected to the antenna terminal, a second filter that has a passband at a high-frequency side of the first filter and is connected to the antenna terminal, and a resonance circuit that is connected between the second filter and the antenna terminal and includes a first inductor and a first capacitor connected in parallel. Assuming that a passband frequency of the first filter ranges from f1Low to f1High (f1Low˜f1High) and a passband frequency ranges from f2Low to f2High (f2Low˜f2High), the resonator has a resonance frequency fr satisfying: fr=(f2Low˜f2High)±(f1Low˜f1High), or fr=2(f1Low˜f1High)±(f2Low˜f2High).
摘要翻译： 双工器包括天线端子，连接到天线端子的第一滤波器，在第一滤波器的高频侧具有通带并连接到天线端子的第二滤波器，以及连接在天线端子之间的谐振电路 第二滤波器和天线端子，并且包括并联连接的第一电感器和第一电容器。 假设第一滤波器的通带频率从f1到低（f1Low〜f1High）的范围，通带频率的范围从f2到高（f2Low〜f2High），谐振器的共振频率fr满足：fr =（f2Low〜f2High） ±（f1Low〜f1High）或fr = 2（f1Low〜f2高）±（f2Low〜f2高）。
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公开(公告)号：US20100134203A1
公开(公告)日：2010-06-03
申请号：US12700876
申请日：2010-02-05
CPC分类号： H03H9/706 , H03H9/0042 , H03H9/02157 , H03H9/0576 , H03H9/14517 , H03H9/14526 , H03H9/14547 , H03H9/14552 , H03H9/14594 , H03H9/174 , H03H9/6483 , H03H9/72 , H03H9/725 , H03H2003/0428 , H03H2003/0435
摘要： There is provided a filter including a first resonator, a second resonator in which an excitation efficiency is reduced more than the first resonator, and an inductor connected in parallel with the second resonator.
摘要翻译： 提供了一种滤波器，其包括第一谐振器，其中激励效率比第一谐振器更多地减小的第二谐振器，以及与第二谐振器并联连接的电感器。
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公开(公告)号：US20070046394A1
公开(公告)日：2007-03-01
申请号：US11509056
申请日：2006-08-24
CPC分类号： H03H9/706 , H03H9/0042 , H03H9/02157 , H03H9/0576 , H03H9/14517 , H03H9/14526 , H03H9/14547 , H03H9/14552 , H03H9/14594 , H03H9/174 , H03H9/6483 , H03H9/72 , H03H9/725 , H03H2003/0428 , H03H2003/0435
摘要： There is provided a filter including a first resonator, a second resonator in which an excitation efficiency is reduced more than the first resonator, and an inductor connected in parallel with the second resonator.
摘要翻译： 提供了一种滤波器，其包括第一谐振器，其中激励效率比第一谐振器更多地减小的第二谐振器，以及与第二谐振器并联连接的电感器。
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公开(公告)号：US09148107B2
公开(公告)日：2015-09-29
申请号：US13362743
申请日：2012-01-31
IPC分类号： H03H3/02 , H03H3/10 , H03H9/02 , H01L41/312 , H01L41/337 , H03H9/05
CPC分类号： H03H3/02 , H01L41/312 , H01L41/337 , H03H3/10 , H03H9/02574 , H03H9/0504 , Y10T29/42 , Y10T29/49005 , Y10T29/49153
摘要： A method for manufacturing an acoustic wave device includes: bonding a piezoelectric substrate to a first surface of a first support substrate; thinning the piezoelectric substrate after the bonding to thus form a piezoelectric layer; forming a first electrode on a first surface of the piezoelectric layer; forming holes in the first support substrate located below the first electrode; and bonding a second support substrate to a second surface of the first support substrate opposite to the first surface after the forming of holes.
摘要翻译： 一种制造声波器件的方法包括：将压电基片接合到第一支撑基板的第一表面; 在接合之后使压电基板变薄从而形成压电层; 在所述压电层的第一表面上形成第一电极; 在位于第一电极下方的第一支撑基板上形成孔; 以及在形成孔之后，将第二支撑基板接合到所述第一支撑基板的与所述第一表面相对的第二表面。
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公开(公告)号：US08378760B2
公开(公告)日：2013-02-19
申请号：US13563510
申请日：2012-07-31
CPC分类号： H03H9/725 , H03H9/0038 , H03H9/0571 , H03H9/0576 , H03H9/6436 , H03H9/706
摘要： A duplexer includes an unbalanced transmitting filter; a balanced receiving filter; a transmitting port connected to the transmitting filter; and a first receiving port and a second receiving port connected to the receiving filter. The duplexer also includes an electromagnetic coupling portion connected between the transmitting port and the first receiving port and between the transmitting port and the second receiving port. The electromagnetic coupling portion adjusts the phase between electric power that flows from the transmitting port to the first receiving port and electric power that flows from the transmitting port to the second receiving port.
摘要翻译： 双工器包括不平衡发射滤波器; 平衡接收滤波器; 连接到发送滤波器的发送端口; 以及连接到接收滤波器的第一接收端口和第二接收端口。 双工器还包括连接在发送端口和第一接收端口之间以及发送端口和第二接收端口之间的电磁耦合部分。 电磁耦合部分调节从发送端口到第一接收端口的电力之间的相位以及从发送端口流向第二接收端口的电力。
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79.发明授权Piezoelectric thin film resonator, filter using the resonator, duplexer using the filter, and communication equipment using the filter or the duplexer 有权压电薄膜谐振器，使用谐振器的滤波器，使用滤波器的双工器，以及使用滤波器或双工器的通信设备公开(公告)号：US08305159B2
公开(公告)日：2012-11-06
申请号：US12707301
申请日：2010-02-17
摘要： There is provided a piezoelectric thin film resonator that decreases only transverse mode waves selectively while maintaining resonance characteristics due to original thickness longitudinal vibration. The piezoelectric thin film resonator includes: a piezoelectric film (14); a first electrode (15a) formed on a first principal surface of the piezoelectric film (14); and a second electrode (13) formed on a second principal surface of the piezoelectric film (14) opposite to the first principal surface. The resonator has a resonance region (20) where the first electrode (15a) and the second electrode (13) are opposed to each other. An electrically discontinuous portion (18a) that is insulated from the first electrode (15a) is provided on the first principal surface of the piezoelectric film (14) in the resonance region (20), and the electrically discontinuous portion (18a) is surrounded by the first electrode (15a) on the first principal surface.
摘要翻译： 提供了一种压电薄膜谐振器，其仅选择性地减小横模波，同时保持由于原始厚度纵向振动引起的共振特性。 压电薄膜谐振器包括：压电薄膜（14）; 形成在压电膜（14）的第一主表面上的第一电极（15a）; 以及形成在与第一主表面相对的压电膜（14）的第二主表面上的第二电极（13）。 谐振器具有第一电极（15a）和第二电极（13）彼此相对的共振区域（20）。 在谐振区域（20）中的压电膜（14）的第一主表面上设置与第一电极（15a）绝缘的不连续部分（18a），并且电不连续部分（18a）被 第一主表面上的第一电极（15a）。
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公开(公告)号：US20080024243A1
公开(公告)日：2008-01-31
申请号：US11812514
申请日：2007-06-19
申请人： Masafumi Iwaki , Tokihiro Nishihara , Masanori Ueda , Go Endo
发明人： Masafumi Iwaki , Tokihiro Nishihara , Masanori Ueda , Go Endo
IPC分类号： H01P1/202
CPC分类号： H03H9/706 , H03H9/0571
摘要： A duplexer includes an antenna terminal, a first filter connected to the antenna terminal, a second filter that has a passband at a high-frequency side of the first filter and is connected to the antenna terminal, and a resonance circuit that is connected between the second filter and the antenna terminal and includes a first inductor and a first capacitor connected in parallel. Assuming that a passband frequency of the first filter ranges from f1Low to f1High (f1Low˜f1High) and a passband frequency ranges from f2Low to f2High (f2Low˜f2High), the resonator has a resonance frequency fr satisfying: fr=(f2Low˜f2High)±(f1Low˜f1High), or fr=2(f1Low˜f1High)±(f2Low˜f2High).
摘要翻译： 双工器包括天线端子，连接到天线端子的第一滤波器，在第一滤波器的高频侧具有通带并连接到天线端子的第二滤波器，以及连接在天线端子之间的谐振电路 第二滤波器和天线端子，并且包括并联连接的第一电感器和第一电容器。 假设第一滤波器的通带频率范围从f 1Low 到f 1 High（f 1） ），并且通带频率的范围从f 2Low 到f 2/2> 2（f 2） 具有满足以下条件的谐振频率f
满足：<？in-line-formula description =“In-line Formulas”end =“lead”？> f < 或者<β在线公式描述中，或者<β-in-line-formula描述中的＆lt;＆lt;＆lt; 1＆gt;＆lt; 1＆lt; 1＆gt; =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> f = 2（f < （2）低于1低于1低于1小时）（±2）低于1。 <？in-line-formula description =“In-line Formulas”end =“tail”？>
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