公开(公告)号：US20230012461A1

公开(公告)日：2023-01-12

申请号：US17811547

申请日：2022-07-08

申请人： IMEC VZW

发明人： Hanns Christoph ADELMANN ,  Florin CIUBOTARU

IPC分类号： H01L41/12 ,  H01L41/20 ,  H01L41/047

摘要： A magnetoelectric (“ME”) device is disclosed. In one aspect, the ME device includes a first piezoelectric substrate portion and a second piezoelectric substrate portion; a magnetostrictive body with a magnetization oriented in a first direction, the magnetostrictive body arranged on and extending between the first and second portions; a pair of input electrodes arranged on the first portion; and a pair of output electrodes arranged on the second portion. The input electrodes are configured to induce a fringing electric field extending between the input electrodes via the first portion, thereby causing a deformation of the first portion which in turn causes a deformation of the magnetostrictive body such that the magnetization thereof is re-oriented to a second direction due to a reverse magnetostriction. An output voltage is induced between the output electrodes by a deformation of the second portion caused by the re-orientation of the magnetization of the magnetostrictive body.

公开(公告)号：US11482660B1

公开(公告)日：2022-10-25

申请号：US16661393

申请日：2019-10-23

申请人： National Technology & Engineering Solutions of Sandia, LLC

发明人： Giovanni Esteves ,  Erica Ann Douglas ,  Michael David Henry ,  Benjamin Griffin ,  Morgann Berg

IPC分类号： H01L41/18 ,  H01L41/12 ,  H01L41/04 ,  H01L41/20 ,  H01L41/06 ,  H01L41/09 ,  H01L41/083 ,  H01L41/08 ,  H01L41/27 ,  H01L41/37

摘要： A metal stack for templating the growth of AlN and ScAlN films is disclosed. The metal stack comprises one, two, or three layers of metal, each of which is compatible with CMOS post-processing. The metal stack provides a template that promotes the growth of highly textured c-axis {002} AlN and ScAlN films. The metal stacks include one or more metal layers with each metal layer having either a hexagonal {002} orientation or a cubic {111} orientation. If the metal stack includes two or more metal layers, the layers can alternate between hexagonal {002} and cubic {111} orientations. The use of ScAlN results in a higher piezoelectric constant compared to that of AlN for ScAlN alloys up to approximately 44% Sc. The disclosed metal stacks resulted in ScAlN films having XRD FWHM values of less than approximately 1.1° while significantly reducing the formation of secondary grains in the ScAlN films.

公开(公告)号：US11373791B2

公开(公告)日：2022-06-28

申请号：US16845646

申请日：2020-04-10

申请人： MAX-PLANCK-GESSELSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V.

发明人： Guo Zhan Lum ,  Zhou Ye ,  Metin Sitti

IPC分类号： H01F13/00 ,  H01L41/47 ,  H01L41/12 ,  H01F10/08

摘要： A method of fabricating a shape-changeable magnetic member comprising a plurality of segments with each segment being able to be magnetized with a desired magnitude and orientation of magnetization, to a method of producing a shape changeable magnetic member composed of a plurality of segments and to a shape changeable magnetic member.

公开(公告)号：US11302862B1

公开(公告)日：2022-04-12

申请号：US17171317

申请日：2021-02-09

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： John E. Miesner

IPC分类号： H01L41/12 ,  H01L41/06 ,  H02N2/04

摘要： Exemplary practice of the present invention provides a magnetostrictive actuator characterized by linear force output and uniform magnetic biasing. A center bias magnet combined with a flux transfer tube produces a uniform magnetic bias down the length of a magnetostrictive component. Depending on the inventive embodiment, the magnetostrictive component may include one magnetostrictive element or a pair of collinear magnetostrictive elements. A center bias magnet, in combination with a flux transfer tube, drives magnetic flux through the magnetostrictive component (e.g., a series of magnetostrictive rods) in opposite directions, while surrounding drive coils apply flux in the same direction through the magnetostrictive component. The net response is substantially linear with respect to the drive coil current. The flux transfer tube applies distributed magnetic flux to the magnetostrictive component at a rate that ensures uniform magnetic flux density down the length of the magnetostrictive component.

公开(公告)号：US20220018723A1

公开(公告)日：2022-01-20

申请号：US17340248

申请日：2021-06-07

申请人： SHINANO KENSHI KABUSHIKI KAISHA

发明人： Akihide FURUKAWA

IPC分类号： G01L3/10 ,  H01L41/12

摘要： A first torque detection part and a second torque detection part are stacked so that a first energizing circuit and a third energizing circuit as well as a second energizing circuit and a fourth energizing circuit are arranged in mirror symmetry with respect to a symmetry plane orthogonal to an axial center direction of an object to be detected, and a plurality of magnetic paths are respectively formed between teeth having inclinations of ±45 degrees in the first torque detection part and the second torque detection part.

公开(公告)号：US11175191B1

公开(公告)日：2021-11-16

申请号：US16393830

申请日：2019-04-24

申请人： HRL Laboratories, LLC

发明人： Walter W. Wall ,  Skyler Selvin ,  Geoffrey P. McKnight ,  Casey J. Sennott ,  David W. Shahan

IPC分类号： G01R33/09 ,  G01L1/12 ,  H01L41/12

摘要： A magnetic transmitting antenna has a beam member having a first end and a second end, wherein the beam member comprising: an elastic member; at least one magnetoelastic member disposed on a first surface of the elastic member; and an actuator disposed on a second surface of the elastic member, wherein the actuator is configured to apply stress to the elastic member thereby applying a bending stress thereto for changing the magnetic permeability of the at least one magnetoelastic member, which in turn, changes an external magnetic field. At least one magnet is disposed adjacent to the magnetoelastic member such that magnetization is induced in the magnetoelastic member.

公开(公告)号：US20210328132A1

公开(公告)日：2021-10-21

申请号：US17272555

申请日：2019-08-28

申请人： TIKOMAT OY

发明人： KARI ULLAKKO

IPC分类号： H01L41/47 ,  H01L41/12 ,  H01L41/20 ,  B01L3/00 ,  C22C19/00 ,  C22F1/10 ,  F03G7/06

摘要： This invention relates to an operational element and a method for manufacturing the operational element that comprises magnetic shape memory alloy. in the method at least a part of the magnetic shape memory alloy is arranged as an active region that is responsive to a magnetic field and at least one other part of the magnetic shape memory alloy is arranged as an inactive region that is unresponsive to a magnetic field.

公开(公告)号：US11131588B2

公开(公告)日：2021-09-28

申请号：US16623118

申请日：2018-04-20

申请人： TOHOKU UNIVERSITY ,  TOHOKU STEEL CO., LTD.

发明人： Fumio Narita ,  Ryuichi Onodera ,  Tsuyoki Tayama ,  Masahito Watanabe ,  Daiki Chiba ,  Tatsuro Sasa ,  Takenobu Sato ,  Takashi Ebata

IPC分类号： G01L1/12 ,  H01L41/12 ,  H01L41/20

摘要： An energy converter is formed by bonding a solid soft magnetic material and a solid magnetostrictive material. A vibration power generator is configured to generate power by means of the inverse magnetostriction effect of the magnetostrictive material produced by the vibration of a vibration unit configured using the energy converter. A force sensor device includes a force detection unit that detects magnetization change resulting from the inverse magnetostriction effect of the magnetostrictive material produced when a sensor unit configured using the energy converter deforms, and determines force acting on the sensor unit on the basis of the detected magnetization change. An actuator is configured to vibrate the vibration unit configured using the energy converter by means of the magnetostriction effect of the magnetostrictive material.

公开(公告)号：US11092503B2

公开(公告)日：2021-08-17

申请号：US16360506

申请日：2019-03-21

申请人： HONDA MOTOR CO., LTD.

发明人： Yutaka Arimura ,  Daisuke Hoshino ,  Tatsuya Ohzu ,  Shingo Soma ,  Yosuke Tanaka

IPC分类号： G01L3/10 ,  H01L41/12 ,  B62D6/10

摘要： A sensor unit includes a shaft having a hollow portion and a torque sensor that is arranged inside the hollow portion and detects torsional torque acting on the shaft from inside the shaft. A motor unit can include the sensor unit and a drive motor. A vehicle can include the motor unit. A drive motor can be a traction motor that generates a traction drive force for the vehicle, for example.

公开(公告)号：US20210231757A1

公开(公告)日：2021-07-29

申请号：US17050957

申请日：2019-03-26

申请人： Christian-Albrechts-Universitaet zu Kiel

发明人： Sebastian Toxvaerd ,  Reinhard Knoechel ,  Eckhard Quandt ,  Lars Thormaehlen

IPC分类号： G01R33/18 ,  G01R33/02 ,  G01R1/067 ,  H01L41/12

摘要： A microwave resonator magnetic field measuring device (1) for measuring alternating magnetic fields, with a base plate (11) having at least one supporting/bearing/clamping point (111), at least one mechanical oscillator (12+13) formed as a microwave resonator in the form of a cantilever (13) having at least one magnetostrictive layer (12), the latter being connected and mounted at at least one point to the base plate (11) in the at least one supporting/bearing/clamping point (111), at least one input coupling means (161) for microwaves and at least one output coupling means (162) for microwaves, wherein the base plate (11) and the mechanical oscillator (12+13) formed as a microwave resonator are at least partly electrically conductive and electrically conductively connected to one another. Also, a magnetic field measuring method having a magnetic field measuring device according to the invention.