公开(公告)号：EP4393060A1

公开(公告)日：2024-07-03

申请号：EP22748693.3

申请日：2022-07-01

申请人： QUALCOMM INCORPORATED

发明人： DUTTA, Ranadeep ,  KIM, Jonghae ,  LAN, Je-Hsiung

IPC分类号： H03H3/10 ,  H03H9/02 ,  H03H9/10

CPC分类号： H03H9/1092 ,  H03H3/10 ,  H03H9/02834

公开(公告)号：EP3465784B1

公开(公告)日：2020-04-08

申请号：EP17732512.3

申请日：2017-05-30

申请人： Soitec

发明人： BROEKAART, Marcel

IPC分类号： H01L41/08 ,  H01L41/312 ,  H03H9/02 ,  H03H3/10

公开(公告)号：EP1947765B1

公开(公告)日：2012-04-11

申请号：EP06811192.1

申请日：2006-10-04

申请人： Murata Manufacturing Co. Ltd.

发明人： OGAMI, Takashi ,  YAMAMOTO, Kansho ,  KADOTA, Michio

IPC分类号： H03H9/02 ,  H03H3/10 ,  H01L41/09 ,  H01L41/18 ,  H01L41/22

CPC分类号： H03H9/02559 ,  H03H3/10 ,  H03H9/02228

摘要： A structure which is a device using a lamb wave and can effectively control spurious due to a mode not desired. A lamb wave device (1) comprising a base substrate (2), a piezoelectric thin film (3) formed on the base substrate (2) and having a portion that is levitated from the base substrate (2) and has a first surface (3a) facing the base substrate (2) and a second surface (3b) on the opposite side to the first surface, and an IDT electrode (4) disposed on at least one of the first and the second surface of the piezoelectric thin film (3), wherein the piezoelectric thin film (3) consists of LiTaO3 or LiNbO3 and is a rotation twin crystal with the c axis of the piezoelectric thin film (3) oriented in almost the same direction of the normal to the first and second surfaces of the piezoelectric thin film (3) and with the c axis as the rotation axis thereof.

公开(公告)号：EP1885062A1

公开(公告)日：2008-02-06

申请号：EP07014595.8

申请日：2007-07-25

申请人： KOIKE CO., LTD. ,  TOCALO CO. LTD.

发明人： Tamura, Noboru ,  Ichikawa, Nakaba ,  Takabatake, Takeshi ,  Yasuda, Kaname

IPC分类号： H03H3/08 ,  H03H3/10 ,  H03H9/02

CPC分类号： H03H9/02834 ,  H03H3/10 ,  H03H9/02574 ,  Y10T29/42

摘要： A piezo-electric substrate 1 is mainly comprised of a base material 11, and a film 12 formed on one main surface of the base material 11. In the base material 11, the main surface on which the film 12 is formed is a roughed main surface 11a. The piezo-electric substrate 1 is obtained by forming the film 12 comprised of a material with a coefficient of linear expansion smaller than a coefficient of linear expansion of the base material 11 on the roughened main surface 11a using a thermal spraying method.

摘要翻译： 压电基板1主要包括基材11和形成在基材11的一个主表面上的膜12.在基材11中，形成有膜12的主表面是粗糙的主体 表面11a。 压电基板1通过使用热喷涂法在粗糙化主表面11a上形成由线性膨胀系数小于基材11的线膨胀系数的材料构成的膜12而获得。

公开(公告)号：EP1049252A3

公开(公告)日：2003-01-22

申请号：EP00401155.7

申请日：2000-04-27

申请人： Murata Manufacturing Co., Ltd.

发明人： Takata, Eiichi, c/o (A170) I.P.D. ,  Yamamoto, Yasuji, c/o (A170) I.P.D. ,  Yoneda, Toshimaro, c/o (A170) I.P.D. ,  Kadota, Michio, c/o (A170) I.P.D.

IPC分类号： H03H3/08 ,  H03H3/10

CPC分类号： H03H3/10 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/4908 ,  Y10T29/49155 ,  Y10T29/49789 ,  Y10T29/49798

摘要： A method of manufacturing a surface acoustic wave element (12) includes the steps of providing a piezoelectric body (10) having an interdigital transducer (11a), where the interdigital transducer is made of a metal having a higher density than the piezoelectric body, and performing ion bombardment of the interdigital transducer (11a) and the piezoelectric body (10) simultaneously so as to reduce the thickness of the interdigital transducer and the piezoelectric body.

公开(公告)号：EP0722218A1

公开(公告)日：1996-07-17

申请号：EP95110005.6

申请日：1995-06-27

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Nakashima, Koji, c/o Murata Manufacturing Co., Ltd ,  Morishita, Hideya

IPC分类号： H03H9/02 ,  H03H3/10

CPC分类号： H03H9/02834 ,  H03H3/10 ,  H03H9/08

摘要： A SAW device (11) includes a SAW element (13) which is bonded onto a support substrate (12) in a face down mode through solder (19, 20), and a metal cap (21) enclosing the SAW element (13). Assuming that α 1 , α 2 and α 3 represent the thermal expansion coefficients of the SAW element (13), the support substrate (12) and the conductive cap (21) along the surface wave propagation direction respectively, α 3 ≧ α 1 when α 1 > α 2 , and α 3 ≦ α 1 when α 1 2 .

摘要翻译： SAW器件（11）包括通过焊料（19,20）以面朝下模式结合到支撑衬底（12）上的SAW元件（13）和包围SAW元件（13）的金属盖（21） 。 假设α1，α2和α3分别表示SAW元件（13），支撑衬底（12）和导电盖（21）沿着表面波传播方向的热膨胀系数，α3> / =α 1，当α1>α2，α3时，α1 <α2

公开(公告)号：EP0471567B1

公开(公告)日：1996-04-24

申请号：EP91307506.5

申请日：1991-08-14

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Panasik, Carl M. ,  Wilde, Patrick J. ,  James, Betty L.

IPC分类号： H03H3/10

CPC分类号： H03H3/10 ,  Y10T29/42

公开(公告)号：EP0144544B1

公开(公告)日：1987-10-21

申请号：EP84110177.7

申请日：1984-08-27

申请人： ALLIED CORPORATION

发明人： Chai, B.H. ,  Vetelino, J.F. ,  Lee, D.L. ,  Bailey, D.S. ,  Andle, J.C.

IPC分类号： H01L41/18 ,  G10K11/36 ,  H03H3/10

CPC分类号： H03H9/02543

公开(公告)号：EP4427335A1

公开(公告)日：2024-09-11

申请号：EP22809482.7

申请日：2022-11-02

申请人： SOITEC

发明人： LAROCHE, Thierry ,  BALLANDRAS, Sylvain ,  ASPAR, Gabrielle ,  COURJON, Emilie ,  BERNARD, Florent

IPC分类号： H03H3/08 ,  H03H9/02 ,  H03H9/10 ,  H03H3/10

CPC分类号： H03H9/02992 ,  H03H9/1092 ,  H03H9/02834 ,  H03H3/08 ,  H03H3/10

公开(公告)号：EP1768255B1

公开(公告)日：2018-11-28

申请号：EP05765451.9

申请日：2005-06-29

申请人： Skyworks Filter Solutions Japan Co., Ltd.

发明人： TAKAYAMA, Ryouichi, c/o Matsushita El. Ind.Co.,Ltd ,  IWASAKI, Yukio, c/o Matsushita El. Ind. Co., Ltd

IPC分类号： H03H9/145 ,  H03H3/10

CPC分类号： H03H3/10 ,  Y10T29/49002

摘要： An electronic part includes: a substrate; a comb-shaped electrode having a plurality of electrode fingers arranged parallel to one another on the upper surface of the substrate; and a protective film formed on the upper surface of the substrate so as to cover the comb-shaped electrode. The protective film has convex portions and concave portions. The convex portions are upwardly convex at the positions corresponding to the electrode fingers, and the concave portions are downwardly concave between the convex portions. The cross section of the protective film in the direction orthogonal to the extending direction of the electrode fingers has a downward convex curve between apex portions of the convex portions.