公开(公告)号：US20170214383A1

公开(公告)日：2017-07-27

申请号：US15087409

申请日：2016-03-31

申请人： RF Micro Devices, Inc.

发明人： Kushal Bhattacharjee

IPC分类号： H03H9/02 ,  H03H3/08 ,  H03H9/25

CPC分类号： H03H9/02228 ,  H03H3/0072 ,  H03H3/0077 ,  H03H3/02 ,  H03H3/08 ,  H03H9/0009 ,  H03H9/02244 ,  H03H9/02259 ,  H03H9/02275 ,  H03H9/02338 ,  H03H9/02787 ,  H03H9/0296 ,  H03H9/0538 ,  H03H9/13 ,  H03H9/131 ,  H03H9/145 ,  H03H9/14564 ,  H03H9/15 ,  H03H9/17 ,  H03H9/25 ,  H03H2003/027 ,  H03H2009/02165 ,  H03H2009/02496 ,  H03H2009/155

摘要： A micro-electrical-mechanical system (MEMS) guided wave device includes a plurality of electrodes arranged below a piezoelectric layer (e.g., either embedded in a slow wave propagation layer or supported by a suspended portion of the piezoelectric layer) and configured for transduction of a lateral acoustic wave in the piezoelectric layer. The piezoelectric layer permits one or more additions or modifications to be made thereto, such as trimming (thinning) of selective areas, addition of loading materials, sandwiching of piezoelectric layer regions between electrodes to yield capacitive elements or non-linear elastic convolvers, addition of sensing materials, and addition of functional layers providing mixed domain signal processing utility.

公开(公告)号：US5717274A

公开(公告)日：1998-02-10

申请号：US791069

申请日：1997-01-29

申请人： Tadashi Eguchi ,  Akira Torisawa ,  Norihiro Mochizuki ,  Koichi Egara ,  Akihiro Koyama ,  Takahiro Hachisu

发明人： Tadashi Eguchi ,  Akira Torisawa ,  Norihiro Mochizuki ,  Koichi Egara ,  Akihiro Koyama ,  Takahiro Hachisu

IPC分类号： G06G7/195 ,  H03H9/145 ,  H03H9/64 ,  H03H9/72

CPC分类号： H03H9/14547 ,  G06G7/195 ,  H03H9/02748 ,  H03H9/02787 ,  H03H9/14555 ,  H03H9/14561 ,  H03H9/14564 ,  H03H9/14567 ,  H03H9/6406 ,  H03H9/14505 ,  H03H9/14508 ,  H03H9/1455 ,  H03H9/14552

摘要： A surface acoustic wave device includes a piezoelectric substrate, a wave guide path provided on the piezoelectric substrate and an interdigital transducer for exciting a surface acoustic wave. The interdigital transducer is provided with plural portions of mutually different pitches of the electrode finger, respectively corresponding to different frequencies. The portions are parallelly arranged along a direction perpendicular to the propagation direction of the surface acoustic wave. The surface acoustic wave generated by the interdigital transducer is entered in concentrated manner into the wave guide path.

公开(公告)号：US5477098A

公开(公告)日：1995-12-19

申请号：US250901

申请日：1994-05-31

申请人： Tadashi Eguchi ,  Akira Torisawa ,  Norihiro Mochizuki ,  Koichi Egara ,  Akihiro Koyama ,  Takahiro Hachisu

发明人： Tadashi Eguchi ,  Akira Torisawa ,  Norihiro Mochizuki ,  Koichi Egara ,  Akihiro Koyama ,  Takahiro Hachisu

IPC分类号： G06G7/195 ,  H03H9/145 ,  H03H9/64 ,  H03H9/72

CPC分类号： H03H9/14547 ,  G06G7/195 ,  H03H9/02748 ,  H03H9/02787 ,  H03H9/14555 ,  H03H9/14561 ,  H03H9/14564 ,  H03H9/14567 ,  H03H9/6406 ,  H03H9/14505 ,  H03H9/14508 ,  H03H9/1455 ,  H03H9/14552

摘要： A surface acoustic wave device includes a piezoelectric substrate, a wave guide path provided on the piezoelectric substrate and an interdigital transducer for exciting a surface acoustic wave. The interdigital transducer is provided with plural portions of mutually different pitches of the electrode finger, respectively corresponding to different frequencies. The portions are parallelly arranged along a direction perpendicular to the propagation direction of the surface acoustic wave. The surface acoustic wave generated by the interdigital transducer is entered in concentrated manner into the wave guide path.

摘要翻译： 表面声波装置包括压电基板，设置在压电基板上的波导路径和用于激励表面声波的叉指式换能器。 叉指式换能器具有分别对应不同频率的电极指的相互不同间距的多个部分。 这些部分沿着与声表面波的传播方向垂直的方向平行布置。 由叉指式换能器产生的表面声波以集中的方式输入波导路径。

公开(公告)号：US3886503A

公开(公告)日：1975-05-27

申请号：US43760274

申请日：1974-01-28

申请人： THOMSON CSF

发明人： BERT ALAIN ,  KANTOROWICZ GERARD

IPC分类号： G10K11/36 ,  G11C8/00 ,  G11C13/04 ,  H03H9/02 ,  H03H9/42 ,  H03H9/30 ,  G11C21/02 ,  G11C27/00

CPC分类号： H03H9/42 ,  G10K11/36 ,  G11C8/005 ,  G11C13/047 ,  H03H9/02645 ,  H03H9/02787

摘要： A memory device including a piezoelectric delay line along the surface of which travels acoustic waves to be put into memory; an electron gun which sweeps the work surface of the line with a beam of electrons for recording or reading out the wave; and in which this work surface is covered at least in part by a layer of a highly resistive material.

公开(公告)号：US20170214384A1

公开(公告)日：2017-07-27

申请号：US15087354

申请日：2016-03-31

申请人： RF Micro Devices, Inc.

发明人： Kushal Bhattacharjee

IPC分类号： H03H9/13 ,  H03H9/15 ,  H03H9/02 ,  H03H9/00

CPC分类号： H03H9/02228 ,  H03H3/0072 ,  H03H3/0077 ,  H03H3/02 ,  H03H3/08 ,  H03H9/0009 ,  H03H9/02244 ,  H03H9/02259 ,  H03H9/02275 ,  H03H9/02338 ,  H03H9/02787 ,  H03H9/0296 ,  H03H9/0538 ,  H03H9/13 ,  H03H9/131 ,  H03H9/145 ,  H03H9/14564 ,  H03H9/15 ,  H03H9/17 ,  H03H9/25 ,  H03H2003/027 ,  H03H2009/02165 ,  H03H2009/02496 ,  H03H2009/155

摘要： A micro-electrical-mechanical system (MEMS) guided wave device includes a plurality of electrodes arranged below a piezoelectric layer (e.g., either embedded in a slow wave propagation layer or supported by a suspended portion of the piezoelectric layer) and configured for transduction of a lateral acoustic wave in the piezoelectric layer. The piezoelectric layer permits one or more additions or modifications to be made thereto, such as trimming (thinning) of selective areas, addition of loading materials, sandwiching of piezoelectric layer regions between electrodes to yield capacitive elements or non-linear elastic convolvers, addition of sensing materials, and addition of functional layers providing mixed domain signal processing utility.

公开(公告)号：US4330768A

公开(公告)日：1982-05-18

申请号：US192962

申请日：1980-10-02

申请人： Peter H. C. Huang ,  Joseph F. Weller ,  Thomas G. Giallorenzi

发明人： Peter H. C. Huang ,  Joseph F. Weller ,  Thomas G. Giallorenzi

IPC分类号： H03H9/02 ,  H03H9/42 ,  H01L41/22 ,  H03H9/68 ,  H03H9/70

CPC分类号： H03H9/44 ,  H03H9/02614 ,  H03H9/02787 ,  H03H9/02881 ,  H03H9/6403

摘要： A surface acoustical wave (SAW) waveguide device which compensates for dispersion by utilizing diffused substrates. Various embodiments have in-diffused or out-diffused core regions in which the ray is channeled that are topped by a thin metallic film overlay. Partially surrounding each core region are cladding portions which are also selectively in-diffused or out-diffused and may be covered by the metal overlay. By varying the amounts of in-diffusion or out-diffusion for the particular application, the effects of dispersion are minimized.

摘要翻译： 表面声波（SAW）波导器件，通过利用扩散衬底补偿色散。 各种实施例具有扩散或扩散的芯区域，其中通过薄金属膜覆盖层覆盖射线。 部分地围绕每个芯区域是包层部分，其也是选择性地扩散或扩散的并且可以被金属覆盖层覆盖。 通过改变特定应用的扩散或扩散的量，可以使色散的影响最小化。

公开(公告)号：US4328472A

公开(公告)日：1982-05-04

申请号：US203821

申请日：1980-11-03

申请人： Thomas W. Grudkowski

发明人： Thomas W. Grudkowski

IPC分类号： H03H9/02 ,  H03H9/36 ,  H03H9/13

CPC分类号： H03H9/02787

摘要： An acoustic guided wave device has a wave guiding volume (20) which may include transducer elements (22-25) and other metal elements (26), sandwiched between two acoustic half spaces (10, 12) having acoustic velocity faster than the effective acoustic velocity of the material within the wave guiding volume.

摘要翻译： 声导波装置具有波导引体积（20），其可以包括换能器元件（22-25）和其他金属元件（26），夹在两个声学半空间（10,12）之间，声学速度比有效声学 材料在波导体积内的速度。

公开(公告)号：US3753157A

公开(公告)日：1973-08-14

申请号：US3753157D

申请日：1971-06-30

申请人： IBM

发明人： ASH E ,  DAKSS M ,  KUHN L

IPC分类号： G02B6/28 ,  G02B6/42 ,  G02F1/01 ,  G02F1/313 ,  H03H9/02 ,  H03H9/76 ,  H01P1/10

CPC分类号： G02F1/3132 ,  G02B6/2821 ,  G02B6/4259 ,  G02B6/4291 ,  G02F1/01 ,  H03H9/02787

摘要： Couplers are disclosed for use with guided elastic waves and guided optical waves. The coupling is effected by means of a coupling region having a different phase velocity characteristic than that of the waveguide. The presence of the coupling region causes the waves traveling in the waveguide to become highly leaky. These leaky waves then encounter a second waveguide or transducer and are coupled into it. Utilizing the electroacoustic effect in the acoustic wave devices and the electrooptic effect in the optical wave devices, the phase velocity characteristic of the coupling region is controllable, permitting switchable couplers.

摘要翻译： 公开了用于引导弹性波和引导光波的耦合器。 通过具有与波导的相位速度特性不同的耦合区域实现耦合。 耦合区域的存在导致在波导中行进的波浪变得高度泄漏。 这些泄漏波然后遇到第二个波导或换能器并被耦合到其中。 利用声波器件中的电声效应和光波器件中的电光效应，耦合区域的相速度特性是可控的，允许可切换耦合器。

公开(公告)号：US20170214385A1

公开(公告)日：2017-07-27

申请号：US15087277

申请日：2016-03-31

申请人： RF Micro Devices, Inc.

发明人： Kushal Bhattacharjee

IPC分类号： H03H9/145 ,  H03H3/007 ,  H03H9/02 ,  H03H3/02

CPC分类号： H03H9/02228 ,  H03H3/0072 ,  H03H3/0077 ,  H03H3/02 ,  H03H3/08 ,  H03H9/0009 ,  H03H9/02244 ,  H03H9/02259 ,  H03H9/02275 ,  H03H9/02338 ,  H03H9/02787 ,  H03H9/0296 ,  H03H9/0538 ,  H03H9/13 ,  H03H9/131 ,  H03H9/145 ,  H03H9/14564 ,  H03H9/15 ,  H03H9/17 ,  H03H9/25 ,  H03H2003/027 ,  H03H2009/02165 ,  H03H2009/02496 ,  H03H2009/155

摘要： A micro-electrical-mechanical system (MEMS) guided wave device includes a plurality of electrodes arranged below a piezoelectric layer (e.g., either embedded in a slow wave propagation layer or supported by a suspended portion of the piezoelectric layer) and configured for transduction of a lateral acoustic wave in the piezoelectric layer. The piezoelectric layer permits one or more additions or modifications to be made thereto, such as trimming (thinning) of selective areas, addition of loading materials, sandwiching of piezoelectric layer regions between electrodes to yield capacitive elements or non-linear elastic convolvers, addition of sensing materials, and addition of functional layers providing mixed domain signal processing utility.

公开(公告)号：US09518863B2

公开(公告)日：2016-12-13

申请号：US14414792

申请日：2013-10-01

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Shigeru Tsuzuki ,  Kazunori Nishimura ,  Hiroyuki Nakamura ,  Tomohiro Iwasaki

IPC分类号： G01H17/00 ,  G01D5/12 ,  H03H9/02 ,  H03H9/145 ,  G01N33/543 ,  B06B1/06 ,  G01N29/02 ,  G01N29/036

CPC分类号： G01H17/00 ,  B06B1/0622 ,  G01D5/12 ,  G01N29/022 ,  G01N29/036 ,  G01N33/5438 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/0255 ,  G01N2291/0256 ,  G01N2291/0423 ,  H03H9/02637 ,  H03H9/02787 ,  H03H9/14505 ,  H03H9/1455

摘要： An acoustic wave element includes a piezoelectric substrate, an excitation electrode configured to excite and output a main acoustic wave on the piezoelectric substrate, a receiving electrode configured to receive the main acoustic wave, a propagation path configured to allow the main acoustic wave to propagate along the piezoelectric substrate between the excitation electrode and the receiving electrode, and a sensing portion configured to react to an object substance. The propagation path is configured to allow the main acoustic wave to pass plural times through the sensing portion along the propagation path. This acoustic wave element has high sensitivity to the object substance.

摘要翻译： 声波元件包括：压电基板，激励电极，其被配置为在压电基板上激励和输出主声波;接收电极，被配置为接收主声波;传播路径，被配置为允许主声波沿着传播 所述激励电极与所述接收电极之间的所述压电基板，以及被配置为与物体反应的感测部。 传播路径被配置为允许主声波沿着传播路径通过感测部分多次。 该声波元件对物体具有高灵敏度。