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    LAYERED FILM INCLUDING HETEROEPITAXIAL PN JUNCTION OXIDE THIN FILM
    3.
    发明申请
    LAYERED FILM INCLUDING HETEROEPITAXIAL PN JUNCTION OXIDE THIN FILM 有权
    层状膜包括异丁烯PN结氧化物薄膜

    公开(公告)号：US20130240874A1

    公开(公告)日：2013-09-19

    申请号：US13790398

    申请日：2013-03-08

    Applicant: TDK CORPORATION

    Inventor： Kazuya MAEKAWA ,  Kunihiro UEDA

    IPC: H01L29/66

    CPC classification number: H01L29/66136 ,  H01L21/02381 ,  H01L21/02483 ,  H01L21/02488 ,  H01L21/02491 ,  H01L21/02505 ,  H01L21/02565 ,  H01L21/02576 ,  H01L21/02579 ,  H01L21/02581 ,  H01L21/02631 ,  H01L29/12 ,  H01L29/861

    Abstract: Semiconductors of different types are formed by a crystal growth technique and joined at the interface at which rapid atomic-layer-level compositional changes occur while maintaining high crystallinity of the semiconductor layers so as to form a heterogeneous PN junction. A layered film that includes a PN junction oxide thin film is formed on a single crystal substrate. The PN junction oxide thin film is constituted by an N-type semiconductor oxide thin film and a P-type semiconductor oxide thin film that are epitaxially grown to have c-axis orientation represented by (00k).

    Abstract translation: 不同类型的半导体通过晶体生长技术形成，并且在保持高半导体层的高结晶度的同时发生快速原子层组成变化的界面处接合，从而形成异质PN结。 在单晶衬底上形成包含PN结氧化物薄膜的层状膜。 PN结氧化物薄膜由外延生长为具有由（00k）表示的c轴取向的N型半导体氧化物薄膜和P型半导体氧化物薄膜构成。

    ROTARY SENSING DEVICE
    4.
    发明申请
    ROTARY SENSING DEVICE 审中-公开
    旋转传感装置

    公开(公告)号：US20170045380A1

    公开(公告)日：2017-02-16

    申请号：US15196155

    申请日：2016-06-29

    Applicant: TDK Corporation

    Inventor： Kunihiro UEDA ,  Hiraku HIRABAYASHI

    IPC: G01D5/16

    CPC classification number: G01D5/2451 ,  G01D5/147

    Abstract: A rotary sensing device that can accurately detect a rotation direction, even if a rotating body rotates at a high speed, when a gap between a plurality of subjects for detection in a rotating body varies is equipped with first to Nth sensor elements that are aligned to oppose the rotating body, which is rotatable in a rotation direction that can be either a normal rotation direction or a reverse rotation direction, and in parallel in respective order along the rotation direction, and that output first to Nth (N≧3) sensor signals based upon the rotation of the rotating body, respectively, and a rotation direction detecting part that detects the rotation direction of the rotating body based upon each sensor signal output from each sensor element, and the rotation direction detecting part detects the rotation direction of the rotating body from a first differential signal that is obtained from the first sensor signal and the Mth (3≦M≦N) sensor signal, and a second differential signal obtained from the first sensor signal and the Lth (2≦L≦M-1) sensor signal.

    Abstract translation: 一种旋转感测装置，其特征在于，在旋转体中检测的多个被检体之间的间隙变化时，即使旋转体高速旋转，也能够精确地检测旋转方向，配备有与第一至第N传感器元件对准 相对于旋转体，其旋转方向可以是旋转方向，也可以是沿着旋转方向的顺序并联，并且输出第一至第N（N≥3）个传感器信号 分别基于旋转体的旋转，以及旋转方向检测部，其基于从各传感器元件输出的各传感器信号来检测旋转体的旋转方向，旋转方向检测部检测旋转体的旋转方向 从第一传感器信号和第Mth（3≤M≤N）个传感器信号获得的第一差分信号和第二差分信号 从第一传感器信号和Lth（2≤L≤M-1）传感器信号获得。

    MAGNETIC SENSOR AND MAGNETIC ENCODER
    5.
    发明申请
    MAGNETIC SENSOR AND MAGNETIC ENCODER 审中-公开
    磁传感器和磁编码器

    公开(公告)号：US20160282146A1

    公开(公告)日：2016-09-29

    申请号：US14996468

    申请日：2016-01-15

    Applicant: TDK Corporation

    Inventor： Kunihiro UEDA ,  Yoshiyuki MIZOGUCHI ,  Hiroshi YAMAZAKI ,  Suguru WATANABE

    IPC: G01D5/20 ,  G01R33/09

    CPC classification number: G01R33/09 ,  G01D5/2455 ,  G01R33/093 ,  G01R33/098

    Abstract: A magnetic sensor is provided with first and second magnetoresistive effect elements that can detect an external magnetic field. The first and second magnetoresistive effect elements are a plurality of layers of multilayer body including free layers where their magnetization directions vary due to the external magnetic field. Shapes of the first and second magnetoresistive effect elements viewed from the upper side in the lamination direction are different from each other. The first magnetoresistive effect element has a shape that can increase a slope of an output of the first magnetoresistive effect element relative to the change of the external magnetic field. The second magnetoresistive effect element has a shape that can decrease a slope of an output of the second magnetoresistive effect element relative to the change of the external magnetic field compared to the slope of the output of the first magnetoresistive effect element.

    Abstract translation: 磁传感器设置有能够检测外部磁场的第一和第二磁阻效应元件。 第一和第二磁阻效应元件是包括自由层的多层多层体，其中它们的磁化方向由于外部磁场而变化。 从层叠方向的上侧观察的第一和第二磁阻效应元件的形状彼此不同。 第一磁阻效应元件具有能够相对于外部磁场的变化增加第一磁阻效应元件的输出的斜率的形状。 第二磁阻效应元件具有相对于第一磁阻效应元件的输出的斜率相对于外部磁场的变化可以减小第二磁阻效应元件的输出的斜率的形状。

    MAGNETIC SENSOR AND MAGNETIC ENCODER
    7.
    发明申请
    MAGNETIC SENSOR AND MAGNETIC ENCODER 审中-公开

    公开(公告)号：US20180364316A1

    公开(公告)日：2018-12-20

    申请号：US16049993

    申请日：2018-07-31

    Applicant: TDK Corporation

    Inventor： Kunihiro UEDA ,  Yoshiyuki MIZOGUCHI ,  Hiroshi YAMAZAKI ,  Suguru WATANABE

    IPC: G01R33/09 ,  G01D5/245

    CPC classification number: G01R33/09 ,  G01D5/2455 ,  G01R33/093 ,  G01R33/098

    Abstract: A magnetic sensor is provided with first and second magnetoresistive effect elements that can detect an external magnetic field. The first and second magnetoresistive effect elements are a plurality of layers of multilayer body including free layers where their magnetization directions vary due to the external magnetic field. Shapes of the first and second magnetoresistive effect elements viewed from the upper side in the lamination direction are different from each other. The first magnetoresistive effect element has a shape that can increase a slope of an output of the first magnetoresistive effect element relative to the change of the external magnetic field. The second magnetoresistive effect element has a shape that can decrease a slope of an output of the second magnetoresistive effect element relative to the change of the external magnetic field compared to the slope of the output of the first magnetoresistive effect element.

    MAGNETIC FIELD DETECTION APPARATUS AND ROTATION DETECTION APPARATUS
    8.
    发明申请
    MAGNETIC FIELD DETECTION APPARATUS AND ROTATION DETECTION APPARATUS 审中-公开
    磁场检测装置和旋转检测装置

    公开(公告)号：US20170059362A1

    公开(公告)日：2017-03-02

    申请号：US15234042

    申请日：2016-08-11

    Applicant: TDK Corporation

    Inventor： Hiroshi NAGANUMA ,  Yohei HIROTA ,  Kunihiro UEDA

    IPC: G01D5/16

    CPC classification number: G01D5/16 ,  G01D5/147

    Abstract: A magnetic field detection apparatus has a first magnetic sensor and a bias magnet positioned to face the first magnetic sensor. The bias magnet has a magnetic pole surface that faces the first magnetic sensor and that applies a bias magnetic field to the first magnetic sensor. The first magnetic sensor detects magnetic field in a first direction that is parallel to the magnetic pole surface. The magnetic pole surface of the bias magnet has a plurality of grooves arranged in the first direction.

    Abstract translation: 磁场检测装置具有第一磁传感器和定位成面对第一磁传感器的偏置磁体。 偏置磁体具有面向第一磁传感器的磁极表面，并且向第一磁传感器施加偏置磁场。 第一磁传感器在平行于磁极表面的第一方向检测磁场。 偏置磁体的磁极表面具有沿第一方向布置的多个槽。

    MAGNETIC SENSOR DEVICE
    9.
    发明申请
    MAGNETIC SENSOR DEVICE 审中-公开
    磁传感器装置

    公开(公告)号：US20170052232A1

    公开(公告)日：2017-02-23

    申请号：US15196194

    申请日：2016-06-29

    Applicant: TDK Corporation

    Inventor： Yoshimitsu WADA ,  Kunihiro UEDA

    IPC: G01R33/09

    CPC classification number: G01R33/091 ,  G01R33/093 ,  G01R33/098 ,  H01L2224/32245 ,  H01L2224/48247 ,  H01L2224/49175 ,  H01L2224/73265 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00

    Abstract: A magnetic sensor device that can prevent an increase in detection error even when stress is applied to a magnetic sensor chip due to heat generation or the like at the time of operation includes a magnetic sensor chip that has a nearly-square shape in a plan view, and a die pad having a mounting surface where the magnetic sensor chip is mounted. Opening portions are formed at positions where four corners of the magnetic sensor chip mounted on the mounting surface overlap, respectively. An area ratio of the opening portions to an area of the die pad is 20% or greater. Also, an area of the overlapped portions with the magnetic sensor chip and the opening portions is 40% or greater relative to the area of the opening portions in a plan view of the die pad.

    Abstract translation: 即使在操作时由于发热等而对磁传感器芯片施加应力也能够防止检测误差增大的磁传感器装置包括在俯视图中具有近似正方形的磁传感器芯片 以及具有安装有磁性传感器芯片的安装面的芯片焊盘。 开口部形成在安装在安装面上的磁传感器芯片的四个角分别重叠的位置。 开口部与面板的面积的面积比为20％以上。 此外，与芯片垫的平面图相比，与磁性传感器芯片和开口部分重叠的部分的面积相对于开口部分的面积为40％以上。

    MAGNETIC SENSOR AND MAGNETIC ENCODER
    10.
    发明申请
    MAGNETIC SENSOR AND MAGNETIC ENCODER 有权
    磁传感器和磁编码器

    公开(公告)号：US20160282145A1

    公开(公告)日：2016-09-29

    申请号：US14996536

    申请日：2016-01-15

    Applicant: TDK Corporation

    Inventor： Kunihiro UEDA ,  Yoshiyuki MIZOGUCHI ,  Hiroshi YAMAZAKI ,  Suguru WATANABE

    IPC: G01D5/16 ,  G01R33/09 ,  G01R33/00

    CPC classification number: G01R33/09 ,  G01R1/00 ,  G01R33/0052 ,  G01R33/093 ,  H01L21/00 ,  H01L2221/00

    Abstract: A magnetic sensor is provided with first and second magnetoresistive effect elements that can detect an external magnetic field. The first and second magnetoresistive effect elements include at least magnetization direction change layers where a direction of magnetization is changed according to an external magnetic field. The width W1 of a magnetization direction change layer in an initial magnetization direction of the magnetization direction change layer of the first magnetoresistive effect element, and the width W2 of a magnetization direction change layer in an initial magnetization direction of the magnetization direction change layer of the second magnetoresistive effect element have a relationship shown by formula (1) below. Sensitivity of the first magnetoresistive effect element to the external magnetic field is higher than that of the second magnetoresistive effect element. W1>W2  (1)

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