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1. 发明公开

EP2763315A4 ELASTIC WAVE DEVICE 审中-公开
标题翻译：弹性波浪装置
公开(公告)号：EP2763315A4
公开(公告)日：2015-10-07
申请号：EP12835346
申请日：2012-09-24
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME , IWAMOTO HIDEKI
IPC分类号： H03H9/02
CPC分类号： H03H9/17 , H03H9/0222 , H03H9/02559 , H03H9/02574

2. 发明公开

EP1732214A4 BOUNDARY ACOUSTIC WAVE DEVICE MANUFACTURING METHOD AND BOUNDARY ACOUSTIC WAVE DEVICE 审中-公开
标题翻译： EDGE表面波元件制造方法和EDGE表面组分
公开(公告)号：EP1732214A4
公开(公告)日：2008-08-06
申请号：EP05727003
申请日：2005-03-24
申请人： MURATA MANUFACTURING CO
发明人： KADOTA MICHIO , KANDO HAJIME
IPC分类号： H03H3/04 , H03H3/08 , H03H3/10 , H03H9/02 , H03H9/145
CPC分类号： H03H9/0222 , H03H3/04 , Y10T29/42 , Y10T29/49005 , Y10T29/4908
摘要： A method of manufacturing a boundary acoustic wave device with less frequency variation. First to third media (1 to 3) are formed sequentially in this order. An electrode (5) is disposed at the boundary between the first and second media (1, 2). In the method, a multilayer body in which the first and second media (1, 2) are formed and the electrode (5) is disposed at the boundary between the first and second media (1, 2) is prepared, the thickness of the second medium (2) is adjusted at the stage of the multilayer body to regulate the frequency or sound velocity of a surface acoustic wave, pseudo-boundary acoustic wave, or a boundary acoustic wave, and after the regulation the third medium (3) having a sound velocity of the boundary acoustic wave and/or a material different from that of the second medium is formed.

3. 发明公开

EP2830216A4 ELASTIC WAVE DEVICE AND MANUFACTURING METHOD FOR SAME 审中-公开
标题翻译：弹性波装置及其制造方法
公开(公告)号：EP2830216A4
公开(公告)日：2016-04-27
申请号：EP13763886
申请日：2013-03-15
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME
IPC分类号： H03H9/02 , H01L41/09 , H03H3/08 , H03H3/10 , H03H9/25
CPC分类号： H03H9/25 , H01L41/0805 , H01L41/083 , H01L41/1873 , H01L41/253 , H01L41/277 , H01L41/29 , H01L41/312 , H01L41/314 , H01L41/39 , H03H3/10 , H03H9/02559 , H03H9/02574

4. 发明公开

EP1903677A4 BOUNDARY ACOUSTIC WAVE FILTER 审中-公开
标题翻译： EDGE声波滤波器
公开(公告)号：EP1903677A4
公开(公告)日：2009-08-12
申请号：EP06746844
申请日：2006-05-25
申请人： MURATA MANUFACTURING CO
发明人： SHIBAHARA TERUHISA , NAKAHASHI NORIHIKO , KANDO HAJIME
IPC分类号： H03H9/64 , H03H9/145 , H03H9/25
CPC分类号： H03H9/0222 , H03H9/02559
摘要： A boundary acoustic wave filter in which out-of-band attenuation can be enlarged. The boundary acoustic wave filter, wherein, on a piezoelectric substrate (101), a dielectric film (102) is formed, at least one longitudinal coupling resonator type boundary acoustic wave filter (110) having a plurality of IDTs on the boundary between the both and at least two single terminal pair boundary acoustic wave resonators (120, 130) are provided, at least one boundary acoustic wave resonator (120) is connected in series with the longitudinal coupling resonator type boundary acoustic wave filter (110), at least one remaining single terminal pair boundary acoustic wave resonator (130) is connected in parallel with the longitudinal coupling resonator type boundary acoustic wave filter (110), antiresonance frequency of a series connection boundary acoustic wave resonator is located on the high frequency side of the pass band of the boundary acoustic wave filter, and the resonance frequency of a parallel connection boundary acoustic wave resonator is located higher than the antiresonance frequency of the series connection boundary acoustic wave resonator.

5. 发明公开

EP1883158A4 ELASTIC BOUNDARY WAVE DEVICE 审中-公开
标题翻译：弹性边界波装置
公开(公告)号：EP1883158A4
公开(公告)日：2009-02-18
申请号：EP06732553
申请日：2006-05-12
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME
IPC分类号： H03H9/02 , H03H9/145
CPC分类号： H03H9/02834 , H03H9/0222 , H03H9/02944 , H03H9/14532 , H03H9/14541
摘要： It is possible to provide an elastic boundary wave device capable of suppressing increase of conductor resistance and obtain a small delay time temperature coefficient eve when a frequency is increased. An elastic boundary wave device (10) includes an IDT (13) arranged between a first medium (11) and a second medium (12). The IDT (13) is divided into two portions in the thickness direction. The plane between the two portions serves as a boundary plane. A sound velocity of an elastic boundary wave when the IDT (13) is configured by setting energy of an elastic boundary wave of the first medium (11) side from the boundary to E1 and energy of an elastic boundary wave of the second medium (12) side from the boundary to E2 is made identical to a sound velocity of an elastic boundary wave when the IDT (13) is configured by using only a conductor having the maximum density constituting the IDT (13) as follows. Under the condition that the IDT (13) is configured by only a conductor layer having the maximum density, the elastic boundary wave energy satisfies E1/E2

6. 发明公开

EP1722473A4 BOUNDARY ACOUSTIC WAVE DEVICE 审中-公开
标题翻译： RAND-SCHALLWELLENEINRICHTUNG
公开(公告)号：EP1722473A4
公开(公告)日：2008-07-30
申请号：EP05719833
申请日：2005-03-02
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME
IPC分类号： H03H9/02 , H01L41/09 , H01L41/18 , H03H9/13 , H03H9/145 , H03H9/25
CPC分类号： H03H9/0222
摘要： A boundary acoustic wave device employing an SH boundary acoustic wave, having a high electromechanical coupling coefficient, a low propagation loss, a small power flow angle, a temperature coefficient of frequency TCF in an appropriate range, and a simple structure, and produced through a simple process. The boundary acoustic wave device (1) comprises a dielectric body (3) deposited on one surface of a piezoelectric body (2) composed of LiTaO3, and an IDT (4) as an electrode and reflectors (5, 6) arranged at the boundary of the piezoelectric body (2) and the dielectric body (3). The thickness of the electrode is determined such that the sound velocity of an SH boundary acoustic wave is lower than that of a slow transverse wave propagating through the dielectric body (3) and that of a slow transverse wave propagating through the piezoelectric body (2).
摘要翻译：本发明提供一种弹性边界波装置，其具有机电耦合系数高，传播损失小，功率流动角度小，频率温度系数TCF在适当的范围内且结构简单的SH型弹性边界波装置，简单的过程。该弹性边界波装置（1）包括：在由LiTaO 3构成的压电体（2）的一个表面上沉积的电介质体（3）和作为电极的IDT（4）;以及布置在边界处的反射器（5,6）（2）和电介质体（3）之间。确定电极的厚度，使得SH边界声波的声速低于传播通过介电体（3）的慢横波和传播通过压电体（2）的慢横波的声速，。

7. 发明公开

EP2128982A4 ELASTIC WAVE DEVICE 有权转让
标题翻译： ELASTIKWELLENANORDNUNG
公开(公告)号：EP2128982A4
公开(公告)日：2013-07-24
申请号：EP08721995
申请日：2008-03-13
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME , KIDO SHUNSUKE , NAKAO TAKESHI , YAMAMOTO DAISUKE
IPC分类号： H03H9/145 , H03H9/00 , H03H9/02
CPC分类号： H03H9/02921 , H03H9/0071 , H03H9/02858 , H03H9/02881 , H03H9/14538 , H03H9/14594
摘要： There is provided an acoustic wave element that enables an improvement of resonance characteristics at the vicinity of a resonance frequency and that prevents short-circuit failure between electrode fingers and degradation in insulation properties. In an acoustic wave element (1), an IDT electrode (3) is in contact with a piezoelectric material. The IDT electrode (3) includes a plurality of electrode fingers. The plurality of electrode fingers include first and second electrode fingers (31 and 32) that adjoin each other in an acoustic wave propagation direction and that connect to different potentials and a first dummy electrode finger (34) facing the first electrode finger (31) via a gap (33) placed on an outer side in an electrode finger length direction of the first electrode finger (31). At the vicinity of the gap, first protrusions (11 to 14) are provided in at least one of the first electrode finger (31) and the first dummy electrode finger (34), the first protrusion protruding in the acoustic wave propagation direction from at least one of side edges of the electrode finger.

8. 发明公开

EP1696562A4 ACOUSTIC BOUNDARY WAVE DEVICE 审中-公开
标题翻译：声波装置CROSS
公开(公告)号：EP1696562A4
公开(公告)日：2010-07-07
申请号：EP04820515
申请日：2004-12-02
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME
IPC分类号： H03H9/25 , H03H9/02 , H03H9/145 , H03H9/56
CPC分类号： H03H9/0222 , H03H9/02559 , H03H9/14538 , H03H9/6483

9. 发明公开

EP1871006A4 ELASTIC WAVE ELEMENT 有权
标题翻译：激发威力
公开(公告)号：EP1871006A4
公开(公告)日：2009-06-17
申请号：EP06730759
申请日：2006-03-31
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME
IPC分类号： H03H9/145 , H01L41/09 , H01L41/18 , H01L41/22 , H01L41/29 , H03H9/25
CPC分类号： H03H9/14532 , H03H9/0071 , H03H9/0222 , H03H9/02559 , H03H9/02858 , H03H9/02881 , H03H9/1452 , H03H9/14544 , H03H9/64
摘要： An elastic wave device having enhanced resonance characteristics and filter characteristics is provided. At least one IDT electrode (3) is provided on a piezoelectric substrate. The at least one IDT electrode (3) is arranged next to each other in a propagation direction of elastic wave. The elastic wave device has first and second electrode fingers (31, 32). The side edges of at least the electrode finger (32) of the first and second electrode fingers (31, 32) are provided with projections (13, 14). The position of the projections (13, 14) in the longitudinal direction of the electrode fingers substantially corresponds with the position of a gap (33) in the longitudinal direction of the electrode fingers, the gap (33) being provided at the tip end of the electrode finger (31) of the first and second electrode fingers.
摘要翻译：提供了具有增强的谐振特性和滤波特性的弹性波装置。在压电基板上设置有至少一个IDT电极（3）。所述至少一个IDT电极（3）沿弹性波的传播方向彼此相邻布置。弹性波装置具有第一和第二电极指（31,32）。第一和第二电极指（31,32）的至少电极指（32）的侧边缘设有突起（13,14）。突起（13,14）在电极指的纵向上的位置基本上对应于电极指的纵向方向上的间隙（33）的位置，间隙（33）设置在电极指的末端第一和第二电极指的电极指（31）。

10. 发明公开

EP1610460A4 ELASTIC BOUNDARY WAVE DEVICE 有权
标题翻译：弹性边界波装置
公开(公告)号：EP1610460A4
公开(公告)日：2006-06-07
申请号：EP03778944
申请日：2003-12-16
申请人： MURATA MANUFACTURING CO
发明人： KANDO HAJIME
IPC分类号： H03H9/02 , H03H9/25 , H03H9/145
CPC分类号： H03H9/0222 , H03H9/02559
摘要： An elastic boundary wave device employing an SH type elastic boundary wave having a large electromechanical coupling coefficient, a low propagation loss, a small power flow angle, a temperature coefficient of frequency TCF in an appropriate range, and a simple structure which can be produced through a simple process. A dielectric is deposited on one side of a piezoelectric and an IDT and a reflector are arranged as electrodes on the boundary of the piezoelectric and the dielectric, wherein the thickness of the electrodes is set such that the sound velocity of the SH type elastic boundary wave becomes lower than the sound velocity of a slow transverse wave propagating through the dielectric and the sound velocity of a slow transverse wave propagating through the piezoelectric.

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