公开(公告)号：US12178135B2

公开(公告)日：2024-12-24

申请号：US17685436

申请日：2022-03-03

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yoshihiro Yoshida ,  Koichi Yoshida

IPC: H01L41/053 ,  H01L41/113 ,  H01L41/23 ,  H10N30/02 ,  H10N30/30 ,  H10N30/88

Abstract: A semiconductor device includes a base, a detector on the base and including a first surface on which a detection portion is provided, and a resin package on the base and including an exposure hole to externally expose the detection portion of the detector. At least a portion of an outer peripheral edge of the first surface of the detector is exposed in the exposure hole. The resin package includes a depressed portion along the portion of the outer peripheral edge that is exposed in the exposure hole.

公开(公告)号：US12074539B2

公开(公告)日：2024-08-27

申请号：US17462372

申请日：2021-08-31

Applicant: Shanghai University

Inventor： Zhongjie Li ,  Xuzhang Peng ,  Yan Peng ,  Jun Luo ,  Shaorong Xie ,  Huayan Pu

IPC: H01L41/113 ,  A63H15/04 ,  H02N11/00 ,  H10N30/30 ,  H10N30/853

CPC classification number: H02N11/008 ,  A63H15/04 ,  H10N30/306 ,  H10N30/853

Abstract: A normal-temperature heat engine power generation device based on a drinking bird is provided. The device includes a drinking bird body, a piezoelectric module and an electromagnetic module. The piezoelectric module includes a cantilever beam, a piezoelectric sheet arranged on the cantilever beam and working loads arranged at an end of the cantilever beam. when a head of the drinking bird body swings downwards, a tip of a beak can impact the working loads. The electromagnetic module includes magnets, coils and coil magnet conducting columns. The magnets are arranged at a bottom of a spherical bottom of the drinking bird body, and the coil magnet conducting columns sleeving the coils are arranged on a base of the drinking bird body.

公开(公告)号：US12000728B2

公开(公告)日：2024-06-04

申请号：US17395171

申请日：2021-08-05

Applicant: Exo Imaging, Inc.

Inventor： Sandeep Akkaraju ,  Haesung Kwon ,  Brian Bircumshaw

IPC: G01H11/08 ,  B81B3/00 ,  G01N29/07 ,  G01S15/02 ,  H01L41/113 ,  H01L41/18 ,  H10N30/30 ,  H10N30/85

CPC classification number: G01H11/08 ,  G01N29/07 ,  G01S15/02 ,  H10N30/302 ,  H10N30/852 ,  B81B3/0021

Abstract: An array of micromachined ultrasonic transducers (MUTs). The array has first and second rows, the MUTs in the first row being equally spaced by a horizontal pitch in a horizontal direction, the MUTs in the second row being equally spaced by the horizontal pitch in the horizontal direction. The MUTs in the second row are shifted along the horizontal direction by a first horizontal distance relative to the MUTs in the first row and shifted along a vertical direction by a first vertical distance relative to the MUTs in the first row. The first horizontal distance is greater than zero and less than the horizontal pitch. The first vertical distance ranges from one tenth of a horizontal width of a MUT to a half of a vertical height of a MUT.

公开(公告)号：US11800807B2

公开(公告)日：2023-10-24

申请号：US17264686

申请日：2019-07-31

Applicant: The Regents of the University of California

Inventor： Jian-Qiao Sun ,  Cheng Chen ,  Amir Sharafi ,  Tian-Bing Xu ,  Atousa Yazdani

IPC: H01L41/113 ,  H10N30/30 ,  H02N2/18 ,  H10N30/80

CPC classification number: H10N30/306 ,  H02N2/181 ,  H10N30/802

Abstract: Various embodiments include a mechanical amplification mechanism in a compact power unit of an electricity generator containing at least one piezoelectric element. The power units can be used singly but are also designed to be stacked, serially and/or in parallel with each other, and to be mounted within or under a substrate (e.g., a roadway or aircraft runway) such that the system achieves ultra-high-density of electricity production per unit area. Embodiments of the disclosed subject matter are therefore directed to a mechanical-to-electrical power generator, an accompanying power electronic-circuit, and power transmission and/or power saving into an energy-storage device. Therefore, the generated electrical power can be conditioned for, for example, transmitting to an electrical grid or for charging batteries of electrical vehicles. Other methods of formation of the power units and related systems are disclosed.

公开(公告)号：US11725993B2

公开(公告)日：2023-08-15

申请号：US17119365

申请日：2020-12-11

Applicant: UltraSense Systems, Inc.

Inventor： Hao-Yen Tang ,  Sina Akhbari ,  Man-Chia Chen ,  Zhongxuan Tu ,  Michael Chen

IPC: H01L41/113 ,  G01L1/16 ,  G01H11/08 ,  H10N30/50 ,  H10N30/30 ,  H10N30/87 ,  H10N30/00

CPC classification number: G01L1/16 ,  G01H11/08 ,  H10N30/10513 ,  H10N30/302 ,  H10N30/50 ,  H10N30/875

Abstract: A force-measuring and touch-sensing integrated circuit device includes a semiconductor substrate, a thin-film piezoelectric stack overlying the semiconductor substrate, piezoelectric micromechanical force-measuring elements (PMFEs), and piezoelectric micromechanical ultrasonic transducers (PMUTs). The thin-film piezoelectric stack includes a piezoelectric layer. The PMFEs and PMUTs are located at respective lateral positions along the thin-film piezoelectric stack, such that each of the PMFEs and PMUTs includes a respective portion of the thin-film piezoelectric stack. Each PMUT has a cavity, the respective portion of the thin-film piezoelectric stack, and first and second PMUT electrodes. Each PMFE has the respective portion of the thin-film piezoelectric stack, and first and second PMFE electrodes. Each PMFE is configured to output voltage signals between the PMFE electrodes in accordance with a time-varying strain at the respective portion of the piezoelectric layer resulting from a low-frequency mechanical deformation.

公开(公告)号：US20230253637A1

公开(公告)日：2023-08-10

申请号：US17592630

申请日：2022-02-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jing Gao ,  Zhe Li ,  Xingcheng Xiao ,  Brian J. Koch ,  Michael A Lelli ,  Dave G. Rich

IPC: H01M10/48 ,  H01L41/113 ,  H01M50/293 ,  H01L41/047

CPC classification number: H01M10/48 ,  H01L41/0475 ,  H01L41/1132 ,  H01M50/293

Abstract: Presented are electrochemical devices with in-stack pressure sensors, methods for making/using such devices, and battery cells with electrode stacks having an electrode separator assembly with a piezoelectric layer for in-stack pressure sensing and dendrite cleaning. An electric machine, such as a lithium-class secondary battery cell for example, includes a device housing with an ion-conducting electrolyte located inside the device housing. A stack of working electrodes is also located inside the device housing, in electrochemical contact with the electrolyte. At least one electrode separator assembly is located inside the device housing, interposed between a neighboring pair of the working electrodes. The electrode separator assembly includes a pair of separator layers that transmit therethrough the ions of the electrolyte, and a piezoelectric layer that is interposed between the two separator layers. The piezoelectric layer outputs an electrical signal in response to deformation of one or both of the neighboring working electrodes.

公开(公告)号：US11719669B2

公开(公告)日：2023-08-08

申请号：US17180172

申请日：2021-02-19

Applicant: Silterra Malaysia Sdn. Bhd.

Inventor： Mohanraj Soundara Pandian ,  Arjun Kumar Kantimahanti

IPC: G01N29/02 ,  H01L41/113

CPC classification number: G01N29/022 ,  H01L41/1132 ,  G01N2291/0256 ,  G01N2291/02466 ,  G01N2291/0423 ,  G01N2291/0426

Abstract: A device for determining information of a substance in a matter comprising a substrate layer; an inter-layer dielectric disposed on the substrate layer; an electronic circuitry substantially formed in the inter-layer dielectric and includes a plurality of metal layers with at least one metal layer being used as an inner electrode, a sensing instrument having at least one sensing component that includes a piezoelectric layer and the inner electrode that is positioned adjacent to an inner surface of the piezoelectric layer, and at least one binding layer disposed on the inter-layer dielectric for binding the substance, wherein the sensing component allows the device to determine the information of the substance upon detecting presence of the substance at the binding layer.

公开(公告)号：US11696505B2

公开(公告)日：2023-07-04

申请号：US16781543

申请日：2020-02-04

Applicant: Korea Polytechnic University Industry Academic Cooperation Foundation

Inventor： Kyoung Kook Kim

IPC: H01L41/29 ,  H01L41/113 ,  H01L41/317 ,  H01L41/332 ,  H01L41/047 ,  G06K9/00 ,  H10N30/06 ,  G06V40/13 ,  H10N30/077 ,  H10N30/082 ,  H10N30/30 ,  H10N30/87 ,  H10N30/853

CPC classification number: H10N30/06 ,  G06V40/1306 ,  H10N30/077 ,  H10N30/082 ,  H10N30/302 ,  H10N30/878 ,  H10N30/8554

Abstract: The present invention is directed to a method for manufacturing an ultrasonic fingerprint sensor by using a nanorod structure, the method including: a conductive mold generating step of generating a plurality of rod generation holes; a nanorod generating step of generating nanorods by filling the plurality of rod generation holes with a nano-piezoelectric material; a side electrode generation portion marking step of marking side electrode generation portions; a conductive mold etching step of generating nanorods and side electrodes by performing primary etching on the conductive mold; an insulating material filling step of filling portions with an insulating material; a lower electrode forming step of performing secondary etching and forming lower electrodes; a dummy substrate bonding step of bonding a dummy substrate to a surface on which the lower electrodes are formed; and an upper electrode forming step of removing the conductive substrate base and forming upper electrodes.

公开(公告)号：US11665968B2

公开(公告)日：2023-05-30

申请号：US17180193

申请日：2021-02-19

Applicant: The Regents of the University of Michigan ,  VESPER TECHNOLOGIES INC.

Inventor： Karl Grosh ,  Robert J. Littrell

IPC: H01L41/083 ,  H01L41/187 ,  H01L41/113 ,  H04R17/00 ,  H04R17/02 ,  B81B7/00 ,  B81B7/02 ,  B81B3/00

CPC classification number: H01L41/083 ,  B81B3/0021 ,  B81B7/0032 ,  B81B7/02 ,  H01L41/1132 ,  H01L41/1136 ,  H01L41/1138 ,  H01L41/187 ,  H04R17/00 ,  H04R17/02 ,  B81B2201/0257 ,  B81B2203/0127 ,  B81B2203/0315 ,  B81B2203/04 ,  B81B2207/09 ,  H04R2201/003

Abstract: A microphone including a casing having a front wall, a back wall, and a side wall joining the front wall to the back wall, a transducer mounted to the front wall, the transducer including a substrate and a transducing element, the transducing element having a transducer acoustic compliance dependent on the transducing element dimensions, a back cavity cooperatively defined between the back wall, the side wall, and the transducer, the back cavity having a back cavity acoustic compliance. The transducing element is dimensioned such that the transducing element length matches a predetermined resonant frequency and the transducing element width, thickness, and elasticity produces a transducer acoustic compliance within a given range of the back cavity acoustic compliance.

公开(公告)号：US20230161222A1

公开(公告)日：2023-05-25

申请号：US17903806

申请日：2022-09-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young-Ho Ko ,  Mireu Lee

IPC: G02F1/39 ,  H01L41/113

CPC classification number: G02F1/39 ,  H01L41/113

Abstract: An entangled-photon pair emitting device according to an embodiment of the inventive concept includes a piezoelectric structure having a first surface and a second surface, which face each other, wherein the piezoelectric structure includes an opening passing through the piezoelectric structure from the first surface to the second surface, a stress transfer medium that fills the opening, a light source emitting part disposed on the stress transfer medium, an upper electrode disposed on the first surface of the piezoelectric structure, and a lower electrode disposed on the second surface of the piezoelectric structure. Here, the light source emitting part includes a semiconductor thin-film and a quantum dot in the semiconductor thin-film.