公开(公告)号：US20240099143A1

公开(公告)日：2024-03-21

申请号：US18264318

申请日：2022-01-12

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

发明人： Toshiaki KURODA ,  Kenji SHIBATA ,  Kazutoshi WATANABE ,  Takeshi KIMURA

IPC分类号： H10N30/03 ,  H10N30/00 ,  H10N30/063 ,  H10N30/076 ,  H10N30/077 ,  H10N30/87 ,  H10N30/88

CPC分类号： H10N30/03 ,  H10N30/063 ,  H10N30/076 ,  H10N30/077 ,  H10N30/1051 ,  H10N30/87 ,  H10N30/883

摘要： There is provided a piezoelectric stack including: a substrate (1); a bottom electrode film (2) on the substrate; a piezoelectric film (3) on the bottom electrode film, having a planar area smaller than a planar area of the bottom electrode film; a top electrode film (4) on the piezoelectric film; and an insulating film (5) provided from the top electrode film to the bottom electrode film and covering at least a part of a side surface of the piezoelectric film, wherein the insulating film has a slope (9a) filling a step between a top surface of the top electrode film and a top surface of the bottom electrode film, and the slope has a shape alleviating the step.

公开(公告)号：US11909373B2

公开(公告)日：2024-02-20

申请号：US17071849

申请日：2020-10-15

申请人： Global Communication Semiconductors, LLC

发明人： Shing-Kuo Wang ,  Liping D. Hou ,  Kun-Mao Pan ,  Andy Chien-Hsiang Chen ,  Robert B. Stokes

IPC分类号： H03H9/02 ,  H03H9/13 ,  H03H9/17 ,  H10N30/85 ,  H10N30/00

CPC分类号： H03H9/02015 ,  H03H9/0211 ,  H03H9/02102 ,  H03H9/02118 ,  H03H9/131 ,  H03H9/17 ,  H03H9/173 ,  H10N30/1051 ,  H10N30/85

摘要： A bulk acoustic wave (BAW) resonator includes a substrate, a stack over the substrate and including a piezoelectric layer disposed between two electrode layers, and one or more edge frames. The one or more edge frames can be a raised metal frame extending parallel to a periphery of an active region of the stack and has one or more slanted cuts such that the edge frame does not form a closed loop and loss of acoustic energy in the active region through the one or more cuts is reduced, minimized or prevented. Alternatively or additionally, the one or more edge frames include a recessed edge frame in the form of a trench in the piezoelectric layer extending parallel to a boundary of the active region, and may further include a second edge frame formed on the first electrode and embedded in the piezoelectric layer.

公开(公告)号：US11744159B2

公开(公告)日：2023-08-29

申请号：US16292873

申请日：2019-03-05

申请人： SUMITOMO CHEMICAL COMPANY, LIMITED

发明人： Kenji Shibata ,  Kazutoshi Watanabe ,  Fumimasa Horikiri

IPC分类号： H10N30/85 ,  H10N30/853 ,  C04B35/495 ,  H10N30/076 ,  H10N30/097 ,  H10N30/87 ,  H10N30/00

CPC分类号： H10N30/8542 ,  C04B35/495 ,  H10N30/076 ,  H10N30/097 ,  H10N30/1051 ,  H10N30/871 ,  C04B2235/768

摘要： There is provided a piezoelectric laminate, including: a substrate; and a piezoelectric film formed on the substrate, wherein the piezoelectric film contains an alkali niobium oxide represented by a composition formula of (K1−xNax)NbO3 (0

公开(公告)号：US20230255116A1

公开(公告)日：2023-08-10

申请号：US18191518

申请日：2023-03-28

申请人： FUJIFILM Corporation

发明人： Hiroyuki KOBAYASHI ,  Kenichi UMEDA

IPC分类号： H01L41/00

CPC分类号： H10N30/8554 ,  H10N30/877 ,  H10N30/1051

摘要： A piezoelectric laminate and a piezoelectric element, including on a substrate in the following order, a lower electrode layer, and a piezoelectric film, in which a region of the lower electrode layer, the region being in contact with the piezoelectric film, is constituted of a metal layer, where a (111) plane of the metal layer has an inclination of 1° or more with respect to a surface of the substrate, and the piezoelectric film contains a perovskite-type oxide containing Pb.

公开(公告)号：US20230199357A1

公开(公告)日：2023-06-22

申请号：US18105198

申请日：2023-02-02

申请人： LG Display Co., Ltd.

发明人： YongGyoon JANG ,  Yong-Su HAM ,  YongWoo LEE ,  Kyungyeol RYU

IPC分类号： H04R1/02 ,  G06F3/01 ,  G08B6/00 ,  H01L25/16 ,  H10K50/842 ,  H10N30/20 ,  H10N30/00

CPC分类号： H04R1/028 ,  G06F3/016 ,  G08B6/00 ,  H01L25/167 ,  H10K50/8426 ,  H10N30/20 ,  H10N30/1051 ,  H04R2400/03 ,  H04R2499/15

摘要： Display panel and display apparatus including the same. A display panel includes a first substrate including a display portion configured to display an image, a second substrate attached to the first substrate by an adhesive member, and a vibration generating module within the adhesive member to overlap the display portion. The vibration generating module is surrounded by the second substrate and the adhesive member.

公开(公告)号：US12016247B2

公开(公告)日：2024-06-18

申请号：US17005168

申请日：2020-08-27

申请人： QUALCOMM Incorporated

发明人： Changhan Hobie Yun ,  Nosun Park ,  Daniel Daeik Kim ,  Paragkumar Ajaybhai Thadesar ,  Sameer Sunil Vadhavkar

IPC分类号： H10N30/00 ,  H03H9/02

CPC分类号： H10N30/1051 ,  H03H9/02015 ,  H03H9/02535

摘要： A package that includes an integrated device, an integrated passive device and a void. The integrated device is configured as a filter. The integrated device includes a substrate comprising a piezoelectric material, and at least one metal layer coupled to a first surface of the first substrate. The integrated passive device is coupled to the integrated device. The integrated passive device is configured as a cap for the integrated device. The void is located between the integrated device and the integrated passive device.

公开(公告)号：US20240000429A1

公开(公告)日：2024-01-04

申请号：US18369832

申请日：2023-09-18

申请人： Exo Imaging, Inc.

发明人： Yusuf HAQUE ,  Sandeep AKKARAJU ,  Janusz BRYZEK ,  Brian BIRCUMSHAW

IPC分类号： A61B8/00 ,  B06B1/06 ,  G01S7/52 ,  H10N30/88 ,  H10N30/00 ,  H10N30/20 ,  A61B8/08 ,  A61B8/14 ,  B06B1/02 ,  G01S7/521 ,  G01S15/89

CPC分类号： A61B8/4494 ,  B06B1/0692 ,  G01S7/52079 ,  H10N30/88 ,  H10N30/1051 ,  H10N30/2047 ,  H10N30/2048 ,  A61B8/0883 ,  A61B8/145 ,  A61B8/4488 ,  A61B8/461 ,  A61B8/5207 ,  B06B1/0238 ,  B06B1/0629 ,  G01S7/52046 ,  A61B8/546 ,  B06B1/0662 ,  G01S7/521 ,  G01S15/8925 ,  A61B8/4483 ,  A61B8/488 ,  B06B1/0215 ,  A61B8/4427 ,  A61B8/4472 ,  B06B2201/76

摘要： An imaging device includes a two dimensional array of piezoelectric elements. Each piezoelectric element includes: a piezoelectric layer; a bottom electrode disposed on a bottom side of the piezoelectric layer and configured to receive a transmit signal during a transmit mode and develop an electrical charge during a receive mode; and a first top electrode disposed on a top side of the piezoelectric layer; and a first conductor, wherein the first top electrodes of a portion of the piezoelectric elements in a first column of the two dimensional array are electrically coupled to the first conductor.

公开(公告)号：US20230422626A1

公开(公告)日：2023-12-28

申请号：US18462182

申请日：2023-09-06

申请人： FUJIFILM Corporation

发明人： Jumpei ISHIDA

IPC分类号： H10N30/857 ,  H10N30/00 ,  H10N30/072 ,  H10N30/87

CPC分类号： H10N30/857 ,  H10N30/1051 ,  H10N30/072 ,  H10N30/872

摘要： Provided is a piezoelectric film having high piezoelectric performance. The piezoelectric film is a piezoelectric film including a piezoelectric layer consisting of a polymer-based piezoelectric composite material that contains piezoelectric particles in a matrix containing a polymer material, and electrode layers formed on both surfaces of the piezoelectric layer, in which the piezoelectric particles observed in a cross section of the piezoelectric layer in a thickness direction have a circularity of 0.65 to 0.92.

公开(公告)号：US20230413674A1

公开(公告)日：2023-12-21

申请号：US18461900

申请日：2023-09-06

申请人： FUJIFILM Corporation

发明人： Tetsu MIYOSHI ,  Yusuke KAGAWA

IPC分类号： H10N30/05 ,  H10N30/85 ,  H10N30/00 ,  H10N30/072 ,  H10N30/87

CPC分类号： H10N30/05 ,  H10N30/85 ,  H10N30/1051 ,  H10N30/072 ,  H10N30/871

摘要： Provided is a laminated piezoelectric element capable of suppressing heat generation while maintaining satisfactory piezoelectric characteristics. The laminated piezoelectric element is a laminated piezoelectric element including a piezoelectric film, in which the laminated piezoelectric element is obtained by laminating a plurality of layers of piezoelectric films each including a piezoelectric layer containing a polymer-based piezoelectric composite material that contains piezoelectric particles in a matrix containing a polymer material, and electrode layers formed on both surfaces of the piezoelectric layer, and in a case where a value obtained by dividing a capacitive reactance Xc of the piezoelectric film at a frequency of 1 kHz by an equivalent series resistance ESR is set to 1, a value XE20 obtained by dividing the capacitive reactance Xc at a frequency of 20 kHz by the equivalent series resistance ESR is in a range of 0.6 to 1.5.

公开(公告)号：US20230389432A1

公开(公告)日：2023-11-30

申请号：US18324082

申请日：2023-05-25

申请人： CANON KABUSHIKI KAISHA

发明人： TAKASHI IKEDA

IPC分类号： H10N30/85 ,  B41J2/14 ,  H10N30/50 ,  H10N30/00

CPC分类号： H10N30/85 ,  B41J2/14201 ,  H10N30/50 ,  H10N30/1051

摘要： A piezoelectric element includes a lower electrode, a piezoelectric film, and an upper electrode in this order on a substrate. An aluminum oxide film containing at least one element selected from the group consisting of elements of group III, elements of group IV, and elements of group V, of the periodic table is disposed between the lower electrode and the piezoelectric film.