公开(公告)号：US4494031A

公开(公告)日：1985-01-15

申请号：US475800

申请日：1983-03-16

申请人： Christopher S. Barnes ,  Paul A. Moore ,  Philip D. White

发明人： Christopher S. Barnes ,  Paul A. Moore ,  Philip D. White

IPC分类号： H03H9/25 ,  H03H3/08 ,  H03H9/145 ,  H03H9/54 ,  H03H9/64 ,  H01L41/08

CPC分类号： H03H9/6433 ,  H03H9/14502 ,  H03H9/1455

摘要： N.sup.2 acoustic wave devices (A,B,S,T; where N is an integer greater than unity) with substantially the same electrical impedance and transfer characteristics at a given operating frequency are electrically connected in a parallel-series arrangement which has substantially the same electrical impedance and transfer characteristics as any one of the individual N.sup.2 devices, but an increased active device area. The increased active area reduces stress and alleviates acoustically-induced migration in the metal of, for example, transducer electrode fingers (6,7) of resonators at high power levels. The parallel-series arrangement consists of N groups, each of which comprises N devices (A,B or S,T), the corresponding pairs of terminals (4,54 and 54,55) of which are connected in series. Some terminals (54 or 55) may be common to two or more devices and some devices may have merged transducers in which the electrode fingers (6 or 7) of one transducer are a longitudinal extension of the fingers of a parallel transducer. In the case of multi-port devices the input and output terminal pairs may be differently grouped as regards the individual devices to which they belong.

摘要翻译： 在给定工作频率下具有基本上相同的电阻抗和传递特性的N 2声波器件（A，B，S，T;其中N是大于1的整数）以并联串联的方式电连接， 电阻抗和传输特性作为单独的N2器件中的任何一个，但增加的有源器件面积。 增加的有效面积降低了应力并减轻了例如在高功率水平的谐振器的换能器电极指（6,7）的金属中的声学诱导迁移。 并联串联装置由N组组成，每组分别包括N个装置（A，B或S，T），相应的端子对（4,54和54,55）串联连接。 一些端子（54或55）可以是两个或更多个器件的共同的，并且一些器件可以具有合并的换能器，其中一个换能器的电极指（6或7）是平行换能器的手指的纵向延伸。 在多端口设备的情况下，对于它们所属的各个设备，输入和输出端子对可以被不同地分组。

公开(公告)号：US4137470A

公开(公告)日：1979-01-30

申请号：US775515

申请日：1977-03-08

申请人： Bernard Desormiere ,  Gerard Volluet

发明人： Bernard Desormiere ,  Gerard Volluet

IPC分类号： H03H9/25 ,  B06B1/08 ,  G10K11/36 ,  H03H3/08 ,  H03H9/145 ,  H01L41/14

CPC分类号： H03H9/14502 ,  B06B1/08 ,  G10K11/36

摘要： The invention relates to elastic surface-wave structures. The elastic surface wave structure in accordance with the invention comprises a non magnetic substrate and a surface wave transducer containing at least one emissive zone situated in a deposited layer of magnetostrictive material subjected to an alternating magnetic field and to a magnetic polarization field.

摘要翻译： 本发明涉及弹性表面波结构。 根据本发明的弹性表面波结构包括非磁性基板和表面波换能器，其包含位于经受交变磁场和磁极化场的磁致伸缩材料的沉积层中的至少一个发射区域。

公开(公告)号：US3987378A

公开(公告)日：1976-10-19

申请号：US555625

申请日：1975-03-05

申请人： Toshihiro Onodera

发明人： Toshihiro Onodera

IPC分类号： H02M1/08 ,  H03H3/08 ,  H03H9/00 ,  H03H9/02 ,  H03H9/145 ,  H03H9/30 ,  H03H9/64 ,  H03K17/72 ,  H03H9/06 ,  H03H9/26 ,  H03H9/32

CPC分类号： H03K17/72 ,  H03H9/02574 ,  H03H9/14502

摘要： A surface wave apparatus which comprises an insulation substrate having a smooth surface; a surface wave conversion interdigitated electrode evaporated on the smooth surface of the insulating substrate; a piezoelectric plate, on the smooth surface of which the insulation substrate is mounted at a prescribed space in contact with the electricity-surface wave conversion interdigitated electrode; an insulation liquid layer provided between the smooth surface of the piezoelectric plate and the electricity-surface wave conversion interdigitated electrode as well as between the smooth surface of the piezoelectric plate and the smooth surface of the insulation substrate.

摘要翻译： 一种表面波装置，包括具有光滑表面的绝缘基板; 表面波转换交错电极在绝缘基板的光滑表面上蒸发; 压电板，其平滑表面上的绝缘基板安装在与电表面波转换交叉电极接触的规定空间处; 设置在压电板的光滑表面和电表面波转换交叉电极之间以及压电板的光滑表面和绝缘基板的光滑表面之间的绝缘液层。

公开(公告)号：US2783642A

公开(公告)日：1957-03-05

申请号：US44197954

申请日：1954-07-08

申请人： SPERRY PROD INC

发明人： MCCLURE CHARLES G

IPC分类号： H03H9/145

CPC分类号： H03H9/14502

公开(公告)号：US12107562B2

公开(公告)日：2024-10-01

申请号：US17521316

申请日：2021-11-08

申请人： Qorvo US, Inc.

发明人： Shogo Inoue ,  Hao Dong

IPC分类号： H03H9/13 ,  H03H9/145

CPC分类号： H03H9/13 ,  H03H9/14502

摘要： An acoustic resonator includes a piezoelectric layer on a substrate and an interdigital electrode structure on the piezoelectric layer. The interdigital electrode structure includes a first bus bar, a second bus bar, a first set of electrode fingers, and a second set of electrode fingers. The first bus bar and the second bus bar extend parallel to one another along a length of the interdigital electrode structure. The first set of electrode fingers are coupled to the first bus bar and extend to a first apodization edge. The second set of electrode fingers are coupled to the second bus bar and extend to a second apodization edge. The first set of electrode fingers and the second set of electrode fingers are interleaved. At least one of the first apodization edge and the second apodization edge provides a wave pattern along the length of the interdigital electrode structure.

公开(公告)号：US11984869B2

公开(公告)日：2024-05-14

申请号：US17223061

申请日：2021-04-06

申请人： Murata Manufacturing Co., Ltd.

发明人： Hideki Iwamoto ,  Takashi Yamane ,  Yasumasa Taniguchi ,  Katsuya Daimon

IPC分类号： H03H9/02 ,  H03H9/145 ,  H03H9/15 ,  H10N30/87

CPC分类号： H03H9/02574 ,  H03H9/14502 ,  H03H9/15 ,  H10N30/87

摘要： An acoustic wave device includes a piezoelectric body including first and second main surfaces facing each other, an IDT electrode provided on the first main surface of the piezoelectric body and including electrode fingers, a high acoustic velocity member on the second main surface side of the piezoelectric body, in which an acoustic velocity of a propagating bulk wave is higher than an acoustic velocity of an acoustic wave propagating through the piezoelectric body, and a first dielectric film provided on an upper surface of the electrode fingers, in which a portion where a dielectric is not present is provided between the electrode fingers of the IDT electrode.

公开(公告)号：US20240088865A1

公开(公告)日：2024-03-14

申请号：US18511405

申请日：2023-11-16

申请人： Skyworks Solutions, Inc.

发明人： Satoru Matsuda ,  Tatsuya Fujii ,  Yoshiro Kabe ,  Kenji Nagano

IPC分类号： H03H9/02 ,  H03H9/145 ,  H03H9/25 ,  H03H9/64 ,  H03H9/72

CPC分类号： H03H9/02574 ,  H03H9/02559 ,  H03H9/02834 ,  H03H9/02842 ,  H03H9/14502 ,  H03H9/14541 ,  H03H9/25 ,  H03H9/6406 ,  H03H9/725

摘要： An acoustic wave device is disclosed. The acoustic wave device includes a piezoelectric layer, an interdigital transducer electrode positioned over the piezoelectric layer, and an anti-refection layer over a conductive layer of the interdigital transducer electrode. The conductive layer can include aluminum, for example. The anti-reflection layer can include silicon. The anti-reflection layer can be free from a material of the interdigital transducer electrode. The acoustic wave device can further include a temperature compensation layer positioned over the anti-reflection layer in certain embodiments.

公开(公告)号：US11874189B2

公开(公告)日：2024-01-16

申请号：US17367250

申请日：2021-07-02

申请人： Applied Materials, Inc.

发明人： Chuang-Chia Lin ,  David Peterson ,  Philip Allan Kraus ,  Amir Bayati

IPC分类号： G01L19/00 ,  G01N29/02 ,  H03H9/02 ,  H03H9/145

CPC分类号： G01L19/0092 ,  H03H9/02015 ,  H03H9/02574 ,  H03H9/14502 ,  G01N29/022 ,  G01N2291/014

摘要： Embodiments disclosed herein include diagnostic substrates and methods of using the diagnostic substrates to extract plasma parameters. In an embodiment, a diagnostic substrate comprises a substrate and an array of resonators across the substrate. In an embodiment, the array of resonators comprises at least a first resonator with a first structure and a second resonator with a second structure. In an embodiment, the first structure is different than the second structure.

公开(公告)号：US20230238941A1

公开(公告)日：2023-07-27

申请号：US18126740

申请日：2023-03-27

申请人： Murata Manufacturing Co., Ltd.

发明人： Takashi IWAMOTO ,  Takeshi INAO

IPC分类号： H03H9/64 ,  H03H9/145 ,  H03H7/01 ,  H03H9/02

CPC分类号： H03H9/6489 ,  H03H7/0115 ,  H03H9/02574 ,  H03H9/14502

摘要： A radio-frequency module includes a module substrate, an inductor, and an acoustic wave filter. The inductor overlaps at least a portion of the acoustic wave filter when seen in a plan view from the normal direction of the module substrate. The inductor includes first and second coils connected in series. Each of the first and second coils is a spiral or helical coil that is wound with more than one turn. At least a portion of the first coil overlaps the second coil when seen in a plan view from the normal direction of the module substrate. A direction of a magnetic field generated by the first coil is opposite to a direction of a magnetic field generated by the second coil.

公开(公告)号：US20230238939A1

公开(公告)日：2023-07-27

申请号：US18156320

申请日：2023-01-18

申请人： Skyworks Solutions, Inc.

发明人： Akira Ochiai

IPC分类号： H03H9/64 ,  H03H9/56 ,  H03H9/145 ,  H03H9/76

CPC分类号： H03H9/6483 ,  H03H9/76 ,  H03H9/568 ,  H03H9/14502 ,  H03H9/14544

摘要： Disclosed herein are embodiments of a ladder-type filter comprising a plurality of series arm resonators and a plurality of parallel arm resonators, at least one of the plurality of series arm resonators including a piezoelectric substrate and an interdigital transducer electrode disposed on the piezoelectric substrate, an aperture W1 of the interdigital transducer electrode being configured to be less than 13λ, where λ is a wavelength of a surface acoustic wave excited by the interdigital transducer electrode. The relationship between the aperture W1 and the wavelength λ can be W1 6λ.