公开(公告)号：EP4342005A1

公开(公告)日：2024-03-27

申请号：EP22724543.8

申请日：2022-04-28

Applicant: Microsoft Technology Licensing, LLC

Inventor： MUTIKAINEN, Risto Heikki

IPC: H01L41/047 ,  G02B26/08 ,  H01L41/08 ,  H01L41/09 ,  H01L41/29 ,  H01L41/332

公开(公告)号：EP4315882A1

公开(公告)日：2024-02-07

申请号：EP22713958.1

申请日：2022-03-21

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Inventor： NIEKIEL, Malte Florian ,  STOPPEL, Fabian ,  WAGNER, Bernhard ,  LOFINK, Fabian

IPC: H04R17/00 ,  B06B1/06 ,  H01L41/09

公开(公告)号：EP4190947A1

公开(公告)日：2023-06-07

申请号：EP21850647.5

申请日：2021-05-26

Applicant: FUJIFILM Corporation

Inventor： UMEDA, Kenichi

IPC: C30B25/06 ,  H01L41/09 ,  H01L41/113 ,  H01L41/187 ,  H01L41/319 ,  C04B35/493 ,  C30B29/22 ,  C23C14/08

Abstract: There are provided a piezoelectric film-attached substrate and piezoelectric element, which include, on a substrate in the following order, a lower electrode layer, a piezoelectric film containing a perovskite-type oxide containing lead as a main component of an A site, and a buffer layer, where the buffer layer contains a metal oxide represented by M d N 1-d O e . Here, M consists of one or more metal elements substitutable for the A site of the perovskite-type oxide and has an electronegativity of less than 0.95. In a case of 0 12 , t1 = 0.0306, and y0 = 0.59958.

公开(公告)号：EP4113638A3

公开(公告)日：2023-05-10

申请号：EP22181739.8

申请日：2022-06-29

Applicant: Seiko Epson Corporation

Inventor： HARA, Toshiki ,  YONEMURA, Takayuki ,  KATO, Jiro

IPC: H01L41/09 ,  H01L41/113 ,  H01L41/193 ,  H01L41/333

Abstract: A piezoelectric element (100) includes: a piezoelectric body (200) having a first surface (201) and a second surface (202) that are different from each other; a first electrode (300) provided at the first surface (201); and a second electrode (400) provided at the second surface (202). The piezoelectric body contains a helical chiral polymer crystal having an orientation axis as a crystal axis, the orientation axis is uniaxially oriented in a manner of intersecting both the first surface and the second surface, and a degree of orientation of the orientation axis in the piezoelectric body is 0.80 or more.

公开(公告)号：EP4163250A1

公开(公告)日：2023-04-12

申请号：EP21832895.3

申请日：2021-06-24

Applicant: Sumitomo Precision Products Co., Ltd.

Inventor： UCHINO, Ryohei ,  MORIGUCHI, Takafumi ,  OKIMOTO, Naoki

IPC: B81B3/00 ,  H01L41/047 ,  H01L41/09 ,  H01L41/113 ,  G01C19/5684

Abstract: A vibratory gyro element 100 includes a fixed part 10, a resonator 20 having a cos N θ (N is a natural number of two or more) mode of vibration, support parts 30, and electrodes 40. The electrodes 40 are arranged in 4N orientations arranged in an outer circumferential direction of the resonator 20. The electrodes 40 include a primary driving electrode PD, a primary pickoff electrode PPO, a secondary pickoff electrode SPO, and a secondary driving electrode SD. The primary pickoff electrode PPO is arranged in the same orientation as that of the primary driving electrode PD, and the secondary driving electrode SD is arranged in the same orientation as that of the secondary pickoff electrode SPO.

公开(公告)号：EP3885806B1

公开(公告)日：2023-03-01

申请号：EP21167340.5

申请日：2018-05-29

Inventor： ZHANG, Xiaoyang ,  MATHUR, Vaibhav ,  JOHNSON, Michael Robert ,  DALRYMPLE, Timothy Mark ,  DUENNER, Andrew C. ,  CARLOMAGNO, Albert Daniel

IPC: G02B6/36 ,  G02B6/26 ,  A61B1/07 ,  A61B1/06 ,  G02B26/10 ,  H01L41/09

公开(公告)号：EP2924485B1

公开(公告)日：2023-03-01

申请号：EP15158672.4

申请日：2015-03-11

Inventor： Shinkawa, Mizuki ,  Hasiguchi, Tsuyoshi

IPC: G02B7/182 ,  G02B26/08 ,  G02B26/10 ,  H01L41/09

公开(公告)号：EP4113638A2

公开(公告)日：2023-01-04

申请号：EP22181739.8

申请日：2022-06-29

Applicant: Seiko Epson Corporation

Inventor： HARA, Toshiki ,  YONEMURA, Takayuki ,  KATO, Jiro

IPC: H01L41/09 ,  H01L41/113 ,  H01L41/193 ,  H01L41/333

Abstract: A piezoelectric element (100) includes: a piezoelectric body (200) having a first surface (201) and a second surface (202) that are different from each other; a first electrode (300) provided at the first surface (201); and a second electrode (400) provided at the second surface (202). The piezoelectric body contains a helical chiral polymer crystal having an orientation axis as a crystal axis, the orientation axis is uniaxially oriented in a manner of intersecting both the first surface and the second surface, and a degree of orientation of the orientation axis in the piezoelectric body is 0.80 or more.

公开(公告)号：EP3828943B1

公开(公告)日：2022-10-05

申请号：EP20209299.5

申请日：2020-11-23

Inventor： HILT, Thierry ,  DIEPPEDALE, Christel ,  MOLLARD, Laurent

IPC: H01L41/09

公开(公告)号：EP4047952A1

公开(公告)日：2022-08-24

申请号：EP20876880.4

申请日：2020-09-18

Applicant: FUJIFILM Corporation

Inventor： KAGAWA, Yusuke ,  ASHIKAWA, Teruo ,  HIRAGUCHI, Kazuo

IPC: H04R17/00 ,  H01L41/047 ,  H01L41/083 ,  H01L41/09 ,  H01L41/113 ,  H01L41/187

Abstract: Provided is a piezoelectric element capable of reliably performing an electrical connection to an electrode layer. A piezoelectric element includes a piezoelectric layer, electrode layers formed on both sides of the piezoelectric layer, and a protective layer laminated on a surface of the electrode layer opposite to a surface on the polymer composite piezoelectric body side. The protective layer has a hole that penetrates from the surface to the electrode layer. The piezoelectric element further includes a filling member consisting of a conductive material, which is formed from the inside of the hole to a part of a surface of the protective layer and is electrically connected to the electrode layer, a conductive member which covers at least a part of the filling member and is electrically connected to the filling member, and a fixing member for fixing the conductive member.