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公开(公告)号：US09835692B2
公开(公告)日：2017-12-05
申请号：US14533570
申请日：2014-11-05
Applicant: ALPS ELECTRIC CO., LTD.
Inventor： Masayuki Obana , Hideto Ando , Tsutomu Takeya , Kazuaki Kaneko
CPC classification number: G01R33/0017 , G01R33/093
Abstract: A magnetic field component in a Z direction is guided by a magnetic field guide layer and applied to a magnetic sensor in an X direction that is the same as a sensitivity axis direction thereof, and a detection output is obtained. A bridge circuit is formed with a plurality of magnetic sensors and configured such that an output is not provided for a magnetic field component in the X direction. However, when an external magnetic field in the X direction is drawn to the magnetic field guide layer, variation of sensitivity for the X direction may occur. Thus, soft magnetic characteristics of a first portion of the magnetic field guide layer are deteriorated to decrease the magnetic permeability of the first portion.
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公开(公告)号：US09261570B2
公开(公告)日：2016-02-16
申请号：US13708205
申请日：2012-12-07
Applicant: ALPS ELECTRIC CO., LTD.
Inventor： Masayuki Obana , Hideto Ando , Shinji Sugihara
CPC classification number: G01R33/02 , G01R33/0017 , G01R33/093 , G01R33/096 , H01L43/08
Abstract: A magnetic sensor includes a non-bias structure element section that has a laminated structure in which a fixed magnetic layer, a non-magnetic material layer, a free magnetic layer, and a protection layer are laminated, and that is extended in an X1-X2 direction; and soft magnetic bodies that are arranged on the element section in a contactless manner. The soft magnetic bodies include a first section, a second section, and a third section. The second section is located on a Y2 side of the element section and the third section is located on a Y1 side thereof. The second section of one of soft magnetic bodies faces the third section of the other soft magnetic body in a Y1-Y2 direction through the element section. An electrode layer is provided on the element section which faces the joint sections of the second section and the third section in the Y1-Y2 direction.
Abstract translation: 磁传感器包括非偏置结构元件部分，其具有层叠结构，其中固定磁性层，非磁性材料层，自由磁性层和保护层被层压，并且在X1- X2方向; 以及以非接触方式布置在元件部分上的软磁体。 软磁体包括第一部分，第二部分和第三部分。 第二部分位于元件部分的Y2侧，第三部分位于其Y1侧。 软磁体之一的第二部分通过元件部分在Y1-Y2方向上面对另一软磁体的第三部分。 电极层设置在与Y1-Y2方向上的第二部分和第三部分的接合部分相对的元件部分上。
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公开(公告)号：US20150130453A1
公开(公告)日：2015-05-14
申请号：US14533570
申请日：2014-11-05
Applicant: ALPS Electric Co., Ltd.
Inventor： Masayuki Obana , Hideto Ando , Tsutomu Takeya , Kazuaki Kaneko
CPC classification number: G01R33/0017 , G01R33/093
Abstract: A magnetic field component in a Z direction is guided by a magnetic field guide layer and applied to a magnetic sensor in an X direction that is the same as a sensitivity axis direction thereof, and a detection output is obtained. A bridge circuit is formed with a plurality of magnetic sensors and configured such that an output is not provided for a magnetic field component in the X direction. However, when an external magnetic field in the X direction is drawn to the magnetic field guide layer, variation of sensitivity for the X direction may occur. Thus, soft magnetic characteristics of a first portion of the magnetic field guide layer are deteriorated to decrease the magnetic permeability of the first portion.
Abstract translation: Z方向的磁场分量由磁场引导层引导，并且与X射线方向的磁敏感元件的灵敏度轴方向相同，得到检测输出。 桥式电路形成有多个磁传感器，并且被配置为使得不向X方向的磁场分量提供输出。 然而，当将X方向的外部磁场吸引到磁场引导层时，可能会发生X方向的灵敏度的变化。 因此，磁场引导层的第一部分的软磁特性劣化，从而降低第一部分的磁导率。
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公开(公告)号：US08941378B2
公开(公告)日：2015-01-27
申请号：US13708243
申请日：2012-12-07
Applicant: Alps Electric Co., Ltd.
Inventor： Masayuki Obana , Shinji Sugihara , Hideto Ando
CPC classification number: G01R33/18 , G01R33/0017 , G01R33/02 , G01R33/093 , G01R33/096
Abstract: A magnetic sensor includes a plurality of magnetoresistive elements that are formed by stacking a magnetic layer and a non-magnetic layer on a substrate and that exhibit a magnetoresistive effect and a soft magnetic member that converts a vertical magnetic field component into a horizontal magnetic field component. The soft magnetic member is formed of a plurality of first and second soft magnetic portions respectively extending in an X1-X2 direction and a Y1-Y2 direction, combined together in the shape of a lattice. The magnetoresistive elements have a sensitivity direction in the Y2 direction and include a magnetoresistive element located on a Y1 side portion side of the first soft magnetic portion and a magnetoresistive element located on a Y2 side portion side of the first soft magnetic portion, respectively receiving horizontal magnetic field components from the Y1 direction and Y2 direction.
Abstract translation: 磁传感器包括通过在基板上层叠磁性层和非磁性层而形成磁阻效应而形成的多个磁阻元件，以及将垂直磁场分量转换成水平磁场分量的软磁部件 。 该软磁性部件由分别以X1-X2方向和Y1-Y2方向延伸的多个第一和第二软磁性部分形成，以晶格的形状组合在一起。 磁阻元件在Y2方向上具有灵敏度方向，并且包括位于第一软磁性部分的Y1侧部分侧的磁阻元件和位于第一软磁性部分的Y2侧部分侧的磁阻元件，分别接收水平 磁场分量从Y1方向和Y2方向。
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