公开(公告)号：US20190162559A1

公开(公告)日：2019-05-30

申请号：US16201327

申请日：2018-11-27

Applicant: TDK CORPORATION

Inventor： Naoki OHTA ,  Yoshiyuki MIZOGUCHI

IPC: G01D5/16

Abstract: A sensor system according to an embodiment of the disclosure includes a physical quantity distribution generation source configured to generate a distribution of a physical quantity, and a plurality of sensor packages including respective sensor chips configured to detect the physical quantity. In a plane including the sensor packages, central positions of the respective sensor chips are shifted in directions from central positions of the respective sensor packages toward a central position of the distribution of the physical quantity, and distances from the central position of the distribution of the physical quantity to the central positions of the respective sensor chips of the respective sensor packages are substantially equal to each other.

公开(公告)号：US20180172781A1

公开(公告)日：2018-06-21

申请号：US15715348

申请日：2017-09-26

Applicant: TDK Corporation

Inventor： Naoki OHTA ,  Hirokazu TAKAHASHI ,  Satoshi MIURA

IPC: G01R33/02 ,  G01R33/00 ,  G01R33/09

Abstract: A triaxial magnetic sensor that can detect with high precision magnetic fields in three axial directions comprises a substrate having a first surface and a second surface opposite the first surface, and a magnetic sensor element group provided on the first surface. The magnetic sensor element group includes a first magnetic sensor element for magnetic detection in the x-axis direction, a second magnetic sensor element for magnetic detection in the y-axis direction and a third magnetic sensor element for magnetic detection in the z-axis direction. The first through third magnetic sensor elements respectively contain first through third magneto-resistive effect elements composed of laminated bodies including at least a magnetization fixed layer and a free layer, and the magnetization direction of each of the magnetization fixed layers of the first through third magneto-resistive elements is fixed in a direction inclined at a prescribed angle with respect to the first surface.

公开(公告)号：US20240035893A1

公开(公告)日：2024-02-01

申请号：US18344358

申请日：2023-06-29

Applicant: TDK CORPORATION

Inventor： Tadao SENRIUCHI ,  Naoki OHTA ,  Kazuya MAEKAWA ,  Susumu AOKI ,  Maiko KOKUBO ,  Yusuke KIMOTO ,  Shinji HARA

IPC: G01J5/14 ,  G01J5/22 ,  G01L1/22 ,  G01N22/00 ,  H03F3/45

CPC classification number: G01J5/14 ,  G01J5/22 ,  G01L1/22 ,  G01N22/00 ,  H03F3/45071

Abstract: An element array circuit includes one or more first wiring lines, second wiring lines, impedance elements, one or more operational amplifiers, one or more conversion elements, and one or more switchers. The second wiring lines each extend in a direction different from a direction of extension of the first wiring lines. The impedance elements are each coupled to one each of the first and second wiring lines. The operational amplifiers each include a positive input terminal, a negative input terminal couplable to one of the second wiring lines, and an output terminal. The conversion elements are each coupled to the negative input terminal and the output terminal, and each convert a current flowing through the second wiring line coupled to the negative input terminal into a voltage. The switchers are each coupled to one of the conversion elements and come into a conducting state or a nonconducting state.

公开(公告)号：US20230326839A1

公开(公告)日：2023-10-12

申请号：US18210291

申请日：2023-06-15

Applicant: TDK CORPORATION

Inventor： Yosuke KOMASAKI ,  Hiroshi NAGANUMA ,  Naoki OHTA

IPC: H01L23/495 ,  H01L25/03 ,  H01L23/00

CPC classification number: H01L23/49575 ,  H01L23/49503 ,  H01L23/49562 ,  H01L25/03 ,  H01L24/48 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247

Abstract: An electronic component package has an outer edge including a first side and a second side adjacent to each other. The electronic component package includes a first electronic component chip, a second electronic component chip provided at a distance from the first electronic component chip, one or more first terminals disposed along the first side, one or more second terminals disposed along the second side, and one or more first conductors. The one or more first conductors couple the one or more first terminals to the first electronic component chip, with the one or more first terminals being uncoupled to the second electronic component chip.

公开(公告)号：US20230064502A1

公开(公告)日：2023-03-02

申请号：US17890589

申请日：2022-08-18

Applicant: TDK CORPORATION

Inventor： Susumu AOKI ,  Shinji HARA ,  Naoki OHTA ,  Kazuya MAEKAWA ,  Maiko SHIROKAWA

IPC: G01J5/20

Abstract: The present invention includes an electromagnetic wave detector, and a pair of arm portions and that are positioned on both sides with the electromagnetic wave detector interposed therebetween. The electromagnetic wave detector includes a temperature detection element, and electromagnetic wave absorbers which cover at least a part of the temperature detection element. Each of the arm portions includes a conductor layer which is in a line shape and electrically connected to the temperature detection element, and dielectric layers which are disposed on both sides of the conductor layer. In a short direction of the dielectric layers in a plan view, the conductor layer has a shape protruding outward beyond both end portions of the dielectric layers in the short direction.

公开(公告)号：US20230055177A1

公开(公告)日：2023-02-23

申请号：US17889149

申请日：2022-08-16

Applicant: TDK CORPORATION

Inventor： Shinji HARA ,  Naoki OHTA ,  Kazuya MAEKAWA ,  Susumu AOKI ,  Maiko SHIROKAWA

IPC: G01J5/10 ,  G01J5/08

Abstract: An electromagnetic wave sensor has electromagnetic wave absorbers disposed side by side in first and second directions, temperature detection portions held by the respective electromagnetic wave absorbers and sets of two arm portions connected to each of the electromagnetic wave absorbers at two connection portions. In a plan view, the arm portions have two first extending portions extending from the connection portions in directions of which components in the second direction are opposite to each other, and two second extending portions extending from the first extending portions in directions of which components in the first direction are opposite to each other. Four sides of a rectangle circumscribing each of the electromagnetic wave absorbers with a smallest area are inclined with respect to the first direction in directions in which each of the electromagnetic wave absorbers approaches the second extending portions with the connection portions as fulcrums.

公开(公告)号：US20220128637A1

公开(公告)日：2022-04-28

申请号：US17498165

申请日：2021-10-11

Applicant: TDK Corporation

Inventor： Naoki OHTA ,  Hiroshi YAMAZAKI ,  Satoshi MIURA ,  Kenkichi ANAGAWA ,  Yosuke KOMASAKI

IPC: G01R33/09 ,  H01L43/12

Abstract: A magnetic sensor comprising a resin layer having a first surface and a second surface, which is opposite to the first surface and a magnetoresistive effect unit that detects a magnetic field in a predetermined direction, wherein the magnetoresistive effect unit includes at least a first magnetoresistive effect unit that detects a magnetic field in a first direction, the first direction is a direction orthogonal to the first surface of the resin layer, an inclined surface that is inclined at a predetermined angle with respect to the first surface is formed in the first surface of the resin layer, and the first magnetoresistive effect unit is formed in the inclined surface.

公开(公告)号：US20200292636A1

公开(公告)日：2020-09-17

申请号：US16577036

申请日：2019-09-20

Applicant: TDK Corporation

Inventor： Naoki OHTA ,  Yongfu CAI

IPC: G01R33/09 ,  H01F10/32

Abstract: A magnetic sensor device having a spin-valve-type magnetoresistive effect element and capable of stably applying a bias magnetic field on the free layer of the magnetoresistive effect element includes a spin-valve-type magnetoresistive effect element, a substrate on which the magnetoresistive effect element is positioned, a power source that supplies a substantially constant electric current applied on the magnetoresistive effect element, and a magnetic field generator that is connected to the electric current path of the electric current applied on the magnetoresistive effect element in series. The magnetic field generator is provided to be capable of applying a bias magnetic field on at least a portion of the magnetoresistive effect element. The magnetic field generator is close to a portion of the magnetoresistive effect element and is positioned at a different level from the substrate.

公开(公告)号：US20190157189A1

公开(公告)日：2019-05-23

申请号：US16184424

申请日：2018-11-08

Applicant: TDK CORPORATION

Inventor： Naoki OHTA ,  Keita MIYACHI

IPC: H01L23/495 ,  H01L23/31

Abstract: A semiconductor device according to an embodiment of the disclosure includes a base, a semiconductor element, a first conductor, and a second conductor. The base has an outer edge including a first part, a second part, and a third part. The first part and the second part are substantially parallel to each other. The third part extends in a direction that intersects both of the first part and the second part. The semiconductor element is covered with the base. The first conductor is coupled to the semiconductor element, and protrudes to an outside of the base from the first part of the outer edge. The second conductor is coupled to the semiconductor element, and protrudes to the outside of the base from the third part of the outer edge.

公开(公告)号：US20190079148A1

公开(公告)日：2019-03-14

申请号：US16044967

申请日：2018-07-25

Applicant: TDK CORPORATION

Inventor： Naoki OHTA

IPC: G01R33/09 ,  G01R33/02 ,  H01L43/08 ,  G01R33/00

Abstract: A magnetic sensor includes first and second yokes, first and second magnetoresistive elements, and a current path for passing a current through the first and second magnetoresistive elements. Each of the first and second yokes receives an input magnetic field containing an input magnetic field component in a direction parallel to a first virtual straight line Lz, and generates an output magnetic field. The output magnetic field contains an output magnetic field component in a direction parallel to a second virtual straight line Lx orthogonal to the first virtual straight line Lz. The first and second magnetoresistive elements generate respective detection values corresponding to the output magnetic field components of the output magnetic fields generates by the first and second yokes. The first and second yokes are electrically continuous with the first and second magnetoresistive elements, respectively.