公开(公告)号：US20240040933A1

公开(公告)日：2024-02-01

申请号：US18070769

申请日：2022-11-29

Applicant: NATIONAL CENTRAL UNIVERSITY ,  NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Po-Kang YANG ,  Meng-Lin TSAI ,  Han-Song WU ,  Shih-Min WEI ,  Shih-Min HUANG

IPC: H10N30/853 ,  H10N30/30 ,  H10N30/20 ,  H10N30/50

CPC classification number: H01L41/187 ,  H01L41/1138 ,  H01L41/0973 ,  H01L41/083

Abstract: The present invention discloses a metal-free perovskite film and metal-free perovskite piezoelectric nanogenerators comprising the film. The metal-free perovskite film is organic, lead-free and metal-free. The open-circuit voltage of the metal-free perovskite piezoelectric nanogenerators can reach 9˜16 V and the short-circuit current of the metal-free perovskite piezoelectric nanogenerators can reach 38˜55 nA. Also, the metal-free perovskite piezoelectric nanogenerators can be used as self-powered strain sensor of human-machine interface application and be adopted in in vitro electrical stimulation devices.

公开(公告)号：US20230172069A1

公开(公告)日：2023-06-01

申请号：US17990904

申请日：2022-11-21

Applicant: MicroInnovators Laboratory, Inc.

Inventor： Akio KONISHI ,  Hiroaki KANAMORI

IPC: H01L41/08 ,  H01L41/187 ,  H01L41/316 ,  H01L41/319 ,  C30B29/68 ,  C30B23/02 ,  C30B29/32 ,  C30B29/02

CPC classification number: H01L41/0815 ,  H01L41/187 ,  H01L41/1873 ,  H01L41/1876 ,  H01L41/316 ,  H01L41/319 ,  C30B29/68 ,  C30B23/025 ,  C30B29/32 ,  C30B29/02

Abstract: A film structure comprises a substrate and a buffer film formed on the substrate. The substrate is a 36° to 48° rotated Y-cut Si substrate, or the substrate is a SOI substrate including a base substance made of the 36° to 48° rotated Y-cut Si substrate, an insulating layer on the base substance, and a SOI layer made of a Si film on the insulating layer, and a mirror index of a crystal plane of an upper surface of the SOI layer is equal to a mirror index of a crystal plane of an upper surface of the base substance. The buffer film includes ZrO2 epitaxially grown on the substrate.

公开(公告)号：US20190245133A1

公开(公告)日：2019-08-08

申请号：US16385621

申请日：2019-04-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Keiichi Umeda ,  Toshio Imanishi ,  Ville Kaajakari

IPC: H01L41/113 ,  H04R17/02 ,  H01L41/047 ,  H04R19/01

CPC classification number: H01L41/1138 ,  H01L41/0478 ,  H01L41/187 ,  H04R17/02 ,  H04R17/025 ,  H04R19/016 ,  H04R2201/003

Abstract: A piezoelectric device that includes: a diaphragm; a supporting part configured to support at least a portion of an end of the diaphragm; a piezoelectric film disposed along a portion supported by the supporting part on the diaphragm, a width of the film along the supported portion being narrower than a width of the portion; a lower electrode disposed at a face of the piezoelectric film on a diaphragm side; and an upper electrode disposed on a face of the piezoelectric film on an opposite side to the diaphragm.

公开(公告)号：US20190237657A1

公开(公告)日：2019-08-01

申请号：US16258391

申请日：2019-01-25

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Tomohiro HARADA ,  Hiroyuki SHIMIZU ,  Takayuki GOTO ,  Sumiaki KISHIMOTO ,  Yukihiro KONISHI

IPC: H01L41/273 ,  H01L41/083 ,  H01L41/187 ,  H01L41/047 ,  H01L41/297 ,  H01L41/338 ,  H01L41/312 ,  H01L41/09

CPC classification number: H01L41/273 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/09 ,  H01L41/187 ,  H01L41/297 ,  H01L41/312 ,  H01L41/338

Abstract: A method of producing a multi-layer piezoelectric ceramic component includes: laminating ceramic green sheets to form a laminate, each of the ceramic green sheets being made of a piezoelectric ceramic material and including an electrically conductive pattern, the electrically conductive pattern including a base metal, being to be an internal electrode, and being formed on an inner side of an outer edge of the ceramic green sheet; sintering the laminate; and cutting the sintered laminate and causing the internal electrodes to be exposed.

公开(公告)号：US20190190490A1

公开(公告)日：2019-06-20

申请号：US16210703

申请日：2018-12-05

Applicant: Infineon Technologies AG

Inventor： Ruediger Bauder ,  Andreas Bogner ,  Hans-Joerg Timme

IPC: H03H9/54 ,  H03H9/02 ,  H03H9/205 ,  H03H7/01

CPC classification number: H03H9/542 ,  H01L41/187 ,  H03F3/19 ,  H03F3/21 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2203/21157 ,  H03H3/02 ,  H03H7/0115 ,  H03H7/0153 ,  H03H7/0161 ,  H03H7/12 ,  H03H7/1741 ,  H03H7/463 ,  H03H9/0004 ,  H03H9/02007 ,  H03H9/02015 ,  H03H9/02031 ,  H03H9/0547 ,  H03H9/175 ,  H03H9/205 ,  H03H9/48 ,  H03H9/52 ,  H03H9/54 ,  H03H9/547 ,  H03H9/584 ,  H03H9/585 ,  H03H9/587 ,  H03H9/588 ,  H03H9/589 ,  H03H9/60 ,  H03H9/605 ,  H03H9/6479 ,  H03H9/66 ,  H03H9/70 ,  H03H11/1291 ,  H03H2007/013 ,  H03H2009/02204 ,  H03H2210/025 ,  H03H2210/026 ,  H03J1/0008 ,  H03J3/20 ,  H04B1/0057 ,  H04B1/006 ,  H04B1/0475 ,  H04B1/10 ,  H04B1/1036 ,  H04B1/18 ,  H04B1/40 ,  H04B1/50 ,  H04B1/525

Abstract: A notch filter includes an inductor coupled between an input node and an output node, and a dual-resonator structure coupled between the input node, the output node, and ground.

公开(公告)号：US20190189903A1

公开(公告)日：2019-06-20

申请号：US15841583

申请日：2017-12-14

Applicant: Eastman Kodak Company

Inventor： Roberta Dileo Benedict ,  Kurt D. Sieber

IPC: H01L41/18 ,  H01L41/047 ,  H01L41/193 ,  H01L41/083 ,  H01L41/053 ,  H01L41/113 ,  H01L41/187

CPC classification number: H01L41/183 ,  H01L41/0475 ,  H01L41/0477 ,  H01L41/0478 ,  H01L41/053 ,  H01L41/083 ,  H01L41/1132 ,  H01L41/1136 ,  H01L41/1138 ,  H01L41/187 ,  H01L41/193 ,  H02N2/181 ,  H02N2/188

Abstract: A composite article useful in various electronic devices has 1) a dry piezoelectric layer (first dry PL) comprising a piezoelectric material, and 2) one or more dry dielectric layers arranged contiguously with opposing surfaces of the first dry PL. The dry dielectric layer has essentially: (a′) a dielectric material; and (b) particles having a Young's modulus that is different from the Young's modulus of the (a′) dielectric material by at least 10%. The (b) particles have a d50 of at least 500 nm and up to and including 500 m and a polydispersity coefficient that is less than or equal to 3, provided that the weight ratio of the (b) particles to the (a′) dielectric material is at least 0.01:1 and up to and including 10:1.

公开(公告)号：US20190036509A1

公开(公告)日：2019-01-31

申请号：US16135655

申请日：2018-09-19

Applicant: NGK INSULATORS, LTD.

Inventor： Tomoyoshi TAI ,  Masashi GOTO ,  Yudai UNO ,  Shinya KANEKO

IPC: H03H9/02 ,  H01L41/09 ,  H01L41/187 ,  H01L41/313 ,  H01L41/337 ,  H03H3/08 ,  H03H9/25

CPC classification number: H03H9/02574 ,  H01L41/09 ,  H01L41/187 ,  H01L41/313 ,  H01L41/337 ,  H03H3/08 ,  H03H9/02559 ,  H03H9/02622 ,  H03H9/25

Abstract: A bonded body includes a supporting body composed of a ceramic, a bonding layer provided over a surface of the supporting body and composed of one or more material selected from the group consisting of mullite, alumina, tantalum pentoxide, titanium oxide and niobium pentoxide, and a piezoelectric single crystal substrate bonded with the bonding layer. The surface of the supporting body has an arithmetic average roughness Ra of 0.5 nm or larger and 5.0 nm or smaller.

公开(公告)号：US20180275759A1

公开(公告)日：2018-09-27

申请号：US15928010

申请日：2018-03-21

Applicant: IMMERSION CORPORATION

Inventor： Mansoor Alghooneh ,  Robert Lacroix ,  Juan Manuel Cruz-Hernandez ,  Neil Olien ,  Vahid Khoshkava

IPC: G06F3/01 ,  G06F3/041

CPC classification number: G06F3/016 ,  A61B5/7455 ,  A63F13/285 ,  G06F3/041 ,  G06F2203/013 ,  G06F2203/014 ,  G06F2203/015 ,  G06F2203/04809 ,  H01H13/85 ,  H01H2215/052 ,  H01L41/082 ,  H01L41/187 ,  H01L41/193

Abstract: Haptic feedback is provided by rendering haptic effects on a haptically-enabled device that includes a front screen, a back cover coupled to the front screen, and a haptic output device attached to or formed within the front screen or the back cover. The haptic output device is configured to render a high-definition (HD) vibratory haptic effect, a low-frequency vibratory haptic effect, and a deformation haptic effect.

公开(公告)号：US20180233378A1

公开(公告)日：2018-08-16

申请号：US15405546

申请日：2017-01-13

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Christine Armstrong ,  Matthew W. Copel ,  Yu Luo ,  Paul M. Solomon

IPC: H01L21/3213 ,  H01L21/02 ,  H01L41/332

CPC classification number: H01L21/32134 ,  H01L21/0256 ,  H01L21/0262 ,  H01L41/16 ,  H01L41/187 ,  H01L41/316 ,  H01L41/332 ,  H01L41/39

Abstract: A subtractive forming method that includes providing a material stack including a samarium and selenium containing layer and an aluminum containing layer in direct contact with the samarium and selenium containing layer. The samarium component of the samarium and selenium containing layer of the exposed portion of the material stack is etched with an etch chemistry comprising citric acid and hydrogen peroxide that is selective to the aluminum containing layer. The hydrogen peroxide reacts with the aluminum containing layer to provide an oxide etch protectant surface on the aluminum containing layer, and the citric acid etches samarium selectively to the oxide etch protectant surface. Thereafter, a remaining selenium component of is removed by elevating a temperature of the selenium component.

公开(公告)号：US20180170044A1

公开(公告)日：2018-06-21

申请号：US15575644

申请日：2016-05-11

Applicant: KONICA MINOLTA, INC.

Inventor： Kenji MAWATARI

IPC: B41J2/14 ,  B41J2/16 ,  C04B35/491 ,  C23C14/08 ,  H01L41/09 ,  H01L41/187 ,  H01L41/316 ,  H01L41/319

CPC classification number: B41J2/14 ,  B41J2/16 ,  C04B35/491 ,  C23C14/08 ,  H01L41/081 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/187 ,  H01L41/1876 ,  H01L41/316 ,  H01L41/319

Abstract: A piezoelectric thin film is formed by adding a donor element to lead zirconate titanate. In the piezoelectric thin film, a molar ratio of lead to a total sum of zirconium and titanium is 105% or higher, and, when positive and negative coercive electric fields in polarization and electric field hysteresis are referred to as Ec (+) and Ec (−), respectively, a value of |Ec (+)|/|Ec (−)| is 0.5 or more and 1.5 or less.