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1. 发明公开

EP4357800A1 DEVICE AND METHOD FOR DETERMINING AN ORIENTATION OF A MAGNET, AND A JOYSTICK 审中-公开
公开(公告)号：EP4357800A1
公开(公告)日：2024-04-24
申请号：EP22202618.9
申请日：2022-10-19
申请人： Melexis Technologies SA
发明人： TOMBEZ, Lionel , DUPRE, Nicolas , LAHAYE, Eric
IPC分类号： G01R33/00 , G01D5/14 , G01R33/02 , G01R33/07 , G01R33/09 , G01R33/022 , G01R33/025
CPC分类号： G01D5/145 , G01R33/0011 , G01R33/072 , G01R33/091 , G01R33/0005 , G01R33/077 , G01R33/0206 , G01R33/022 , G01R33/0082 , G01R33/025 , G05G2009/0475520130101
摘要： A method (1900) of determining an orientation (α, β) of a magnet which is pivotable about a reference position having a predefined position relative to a silicon substrate, comprising: providing a silicon substrate; determining a first/second magnetic field gradient along a first/second direction; determining a first/second angle (α, β) based on said first/second magnetic field gradient and a first/second correction value (D1 to D8). A sensor device configured for performing this method. A sensor system comprising such sensor device and a magnet, optionally connected to a joystick.

2. 发明授权

EP3208626B1 MAGNETIC FIELD SENSOR WITH SKEWED SENSE MAGNETIZATION OF SENSE LAYER 有权
公开(公告)号：EP3208626B1
公开(公告)日：2018-11-28
申请号：EP17153227.8
申请日：2017-01-26
申请人： NXP USA, Inc.
发明人： HOLM, Paige M. , LIU, Lianjun
IPC分类号： G01R33/02 , G01R33/09 , G01R33/00
CPC分类号： G01R33/0005 , G01R17/10 , G01R33/0011 , G01R33/0206 , G01R33/09 , G01R33/098
摘要： A magnetic field sensor comprises a sensor bridge having multiple sensor legs. Each sensor leg includes magnetoresistive sense elements, each comprising a pinned layer having a reference magnetization parallel to a plane of the sensor and a sense layer having a sense magnetization that is skewed away from three orthogonal axes. The sense magnetization of a portion of the sense elements is oriented in a first direction and the sense magnetization of a different portion of the sense elements is magnetically biased in a second direction by a permanent magnet layer. The second direction differs from the first direction by an opposing angular magnitude to yield a balanced sensor bridge that produces a zero-offset outcome in the absence of an external magnetic field.

3. 发明公开

EP3387587A2 MAGNETIC STRIPE READING USING MOBILE MAGNETOMETERS 审中-公开
公开(公告)号：EP3387587A2
公开(公告)日：2018-10-17
申请号：EP16873741.9
申请日：2016-12-07
申请人： eBay Inc.
发明人： GONZALES, Sergio Pinzon Jr.
IPC分类号： G06K19/067
CPC分类号： G06K7/084 , G01C17/28 , G01C21/08 , G01R33/0206 , G06F19/00 , G06F19/324 , G06F19/708 , G06K19/06187 , G16H10/60 , G16H10/65
摘要： In various example embodiments, a system and method for reading magnetic information by a mobile device are presented. In example embodiments, the mobile device comprises a housing having an integrated surface for swiping a magnetic swipe card and a magnetometer, positioned within the housing, for detecting direction and strength of magnetic fields to read magnetic information from a variety of sources and to produce digital magnetometer output signals. The digital magnetometer output signals represent magnetic information derived from the magnetic swipe card and from the Earth's magnetic fields (or other sources). Each of the digital magnetometer output signals having a magnitude related to the strength of the detected magnetic fields. The mobile device determines at least some of the digital magnetometer output signals represent the magnetic information derived from the magnetic swipe card and provides that information to a magnetic card application for processing. The mobile device determine at least some of the digital magnetometer output signals represent the magnetic information derived from the Earth's magnetic fields and provides that information to a compass application for processing.

4. 发明公开

EP3340751A1 TRIPLE AXIS SENSOR ON A SINGLE LAYER PRINTED CIRCUIT 审中-实审
公开(公告)号：EP3340751A1
公开(公告)日：2018-06-27
申请号：EP18150488.7
申请日：2017-12-22
申请人： Biosense Webster (Israel) Ltd.
发明人： GOVARI, Assaf
IPC分类号： H05K1/02 , A61B1/04
CPC分类号： G01R33/0206 , A61B1/04 , A61B5/0402 , A61B5/062 , A61B5/6847 , A61B2562/0223 , A61B2562/046 , G01R33/0005 , G01R33/0052 , H01F5/003 , H01F41/041 , H05K1/028 , H05K1/115 , H05K1/118 , H05K1/144 , H05K1/165 , H05K3/103 , H05K3/20 , H05K3/4038 , H05K2201/0154 , H05K2201/051 , H05K2201/056 , H05K2201/09445 , H05K2201/096 , H05K2201/09672 , H05K2201/10151
摘要： Apparatus, including a flexible insulating substrate, having a first side and a second side, rolled about an axis parallel to the substrate. The apparatus also includes a first conducting spiral that is right-handed relative to a normal to the substrate, and a second conducting spiral that is left-handed relative to the normal, formed on the first side of the substrate. The first conducting spiral has a first initial termination and a first final termination, the second conducting spiral has a second initial termination and a second final termination, the spirals have a displacement therebetween, with a preset magnitude so that when the substrate is rolled about the axis the first initial termination aligns with the second initial termination. The apparatus also has a via penetrating the substrate from the first side to the second side so as to interconnect the first initial termination and the second initial termination.

5. 发明授权

EP2131205B1 MAGNETIC SENSOR AND ITS SENSITIVITY MEASURING METHOD 有权
标题翻译：磁性传感器及其灵敏度测量方法
公开(公告)号：EP2131205B1
公开(公告)日：2018-05-02
申请号：EP08722634.6
申请日：2008-03-21
申请人： Asahi Kasei EMD Corporation
发明人： YAMASHITA, Masaya , YAMAGATA, Yo
IPC分类号： G01R33/07 , G01R33/02 , G01R35/00
CPC分类号： G01R33/07 , G01R33/0206 , G01R35/005
摘要： The present invention relates to a magnetic sensor with a sensitivity measuring function and a sensitivity measuring device and a method thereof having a magnetic substance on a semiconductor substrate provided with a plurality of Hall elements. Magnetic sensitivity surfaces (31) detect flux density, and a switching unit (32) extracts magnetic field intensity information of each axis, and inputs it to a sensitivity calculating unit (34) via an amplifier unit (33). The sensitivity calculating unit (34) calculates the sensitivity from the magnetic field intensity information about the individual axes from the magnetic sensitivity surfaces (31). The sensitivity calculating unit includes an axial component analyzing unit (34a) for analyzing the flux density from the magnetic sensitivity surfaces (31) into magnetic components of the individual axes; a sensitivity decision unit (34b) for deciding the sensitivity by comparing the individual axial components of the magnetic field intensity from the axial component analyzing unit (34a) with a reference value; and a sensitivity correction unit (34c) for carrying out sensitivity correction in accordance with the sensitivity information from the sensitivity decision unit (34b). A sensor diagnostic unit (39) carries out self-diagnosis of the validity of the sensitivity of the magnetic sensor according to the sensitivity information, and performs self-sensitivity correction (adjustment).

6. 发明公开

EP3133412A4 SINGLE-CHIP AND THREE-AXIS LINEAR MAGNETIC SENSOR AND MANUFACTURING METHOD THEREFOR 有权转让
公开(公告)号：EP3133412A4
公开(公告)日：2018-01-03
申请号：EP15779547
申请日：2015-04-14
申请人： MULTIDIMENSION TECHNOLOGY CO LTD
发明人： DEAK JAMES GEZA
IPC分类号： G01R33/09 , G01R33/04
CPC分类号： G01R33/0206 , G01R33/0011 , G01R33/0052 , G01R33/04 , G01R33/09 , H01L28/20
摘要： A monolithic three-axis linear magnetic sensor and manufacturing method thereof, the sensor comprises an X-axis sensor (3), a Y-axis sensor (4) and a Z-axis sensor (5). Wherein, the X-axis sensor (3) comprises a referenced bridge and at least two X ferromagnetic flux guides (8). The Y-axis sensor (4) comprises a push-pull bridge and at least two Y ferromagnetic flux guides (23, 24). The Z-axis sensor (5) comprises a push-pull bridge and at least one Z ferromagnetic flux guide (10). The bridge arms of the referenced bridge and push-pull bridge are each formed by one or more magnetoresistive elements (13, 14, 15, 16) that are electrically interconnected. The directions of the sensing axes and the directions of magnetization of the pinned layers of the magnetoresistive elements (13, 14, 15, 16) are all oriented along the X-axis. This manufacturing method comprises first depositing a magnetoresistive thin film on a wafer, and then performing several processes such as magnetic annealing, photolithography, etching, coating, and the like in order to realize a sensor. This monolithic three-axis linear magnetic sensor has the advantages of low cost, easy manufacturability, good linearity, and high sensitivity.

7. 发明授权

EP2887086B1 CAPTEUR MULTI-SENSORIEL 有权
标题翻译： CAPTEUR多传感器
公开(公告)号：EP2887086B1
公开(公告)日：2017-08-23
申请号：EP14198979.8
申请日：2014-12-18
申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
发明人： Jourdan, Guillaume , Diem, Bernard , Rey, Patrice , Robert, Philippe
IPC分类号： G01R33/02 , G01R33/038
CPC分类号： G01R17/105 , G01R19/0084 , G01R33/0206 , G01R33/038

8. 发明授权

EP2878966B1 MAGNETIC SENSOR AND MAGNETIC DETECTING METHOD 有权
标题翻译：磁性传感器和磁性检测方法
公开(公告)号：EP2878966B1
公开(公告)日：2017-07-26
申请号：EP14773348.9
申请日：2014-03-24
申请人： Asahi Kasei Microdevices Corporation
发明人： YAMASHITA, Masaya , YAMAGATA, Yo , TANAKA, Ken , MIKOSHIBA, Norihiko
IPC分类号： G01R33/09 , H01L43/08
CPC分类号： G01R33/0206 , G01R33/09 , G01R33/093 , G01R33/096 , G01R33/098 , H01L43/08

9. 发明公开

EP3141920A1 MAGNETIC DETECTION DEVICE AND METHOD FOR PRODUCING SAME 有权
标题翻译： MAGNETDETEKTOR UND VERFAHREN ZUR HERSTELLUNG DAVON
公开(公告)号：EP3141920A1
公开(公告)日：2017-03-15
申请号：EP15789848.7
申请日：2015-03-12
申请人： Aichi Steel Corporation
发明人： YAMAMOTO Michiharu , NAGAO Tomohiko
IPC分类号： G01R33/02 , G01C17/30 , H01L43/00
CPC分类号： G01R33/063 , G01C17/30 , G01R33/0052 , G01R33/02 , G01R33/0206 , H01L27/22 , H01L43/00 , H01L43/02 , H01L43/12
摘要： An object is to provide a magnetic detection device that can be reduced in size and thickness. The magnetic detection device (1) of the present invention comprises: a substrate (S); and a first magneto-impedance element (MI element) disposed at one surface side of the substrate and comprising a first magneto-sensitive wire (W1) and a first detection coil (C1). The first magneto-sensitive wire senses an external magnetic field component in a first axis direction in which the first magneto-sensitive wire extends. The first detection coil loops around the first magneto-sensitive wire. The first detection coil according to the present invention comprises a left-side coil part (C11) and a right-side coil part (C12) that coexist along the first magneto-sensitive wire, and is provided with a magnetic field direction changing body (F1) composed of a soft magnetic material of which at least a part is disposed at another surface side of the substrate or in the substrate above an intermediate position between the left-side coil part and the right-side coil part. The magnetic field direction changing body is able to change an external magnetic field component in a third axis direction intersecting the substrate to a measurement magnetic field component in the first axis direction. The external magnetic field component in the third axis direction is able to be detected on the basis of a left-side output obtained from the left-side coil part and a right-side output obtained from the right-side coil part.
摘要翻译：目的在于提供能够减小尺寸和厚度的磁检测装置。本发明的磁检测装置（1）包括：基板（S）; 以及设置在所述基板的一个表面侧的包括第一磁敏线（W1）和第一检测线圈（C1）的第一磁阻元件（MI元件）。第一感磁线感测第一磁敏线延伸的第一轴方向上的外部磁场分量。第一检测线圈围绕第一感磁线环绕。根据本发明的第一检测线圈包括沿着第一磁敏线共存的左侧线圈部分（C11）和右侧线圈部分（C12），并且设置有磁场方向改变体（ F1），其由至少一部分设置在基板的另一表面侧或在基板的左侧线圈部和右侧线圈部之间的中间位置之上的软磁性材料构成。磁场方向变换体能够将与基板相交的第三轴方向的外部磁场成分变更为第一轴方向的测定磁场成分。可以根据从左侧线圈部分获得的左侧输出和从右侧线圈部分获得的右侧输出来检测第三轴方向上的外部磁场分量。

10. 发明公开

EP3133412A1 SINGLE-CHIP AND THREE-AXIS LINEAR MAGNETIC SENSOR AND MANUFACTURING METHOD THEREFOR 有权转让
标题翻译： DREIACHSIGER线性传感器MIT EINZELCHIP UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP3133412A1
公开(公告)日：2017-02-22
申请号：EP15779547.7
申请日：2015-04-14
申请人： Multidimension Technology Co., Ltd.
发明人： DEAK, James Geza
IPC分类号： G01R33/09 , G01R33/04
CPC分类号： G01R33/0206 , G01R33/0011 , G01R33/0052 , G01R33/04 , G01R33/09 , H01L28/20
摘要： A monolithic three-axis linear magnetic sensor and manufacturing method thereof, the sensor comprises an X-axis sensor (3), a Y-axis sensor (4) and a Z-axis sensor (5). Wherein, the X-axis sensor (3) comprises a referenced bridge and at least two X ferromagnetic flux guides (8). The Y-axis sensor (4) comprises a push-pull bridge and at least two Y ferromagnetic flux guides (23, 24). The Z-axis sensor (5) comprises a push-pull bridge and at least one Z ferromagnetic flux guide (10). The bridge arms of the referenced bridge and push-pull bridge are each formed by one or more magnetoresistive elements (13, 14, 15, 16) that are electrically interconnected. The directions of the sensing axes and the directions of magnetization of the pinned layers of the magnetoresistive elements (13, 14, 15, 16) are all oriented along the X-axis. This manufacturing method comprises first depositing a magnetoresistive thin film on a wafer, and then performing several processes such as magnetic annealing, photolithography, etching, coating, and the like in order to realize a sensor. This monolithic three-axis linear magnetic sensor has the advantages of low cost, easy manufacturability, good linearity, and high sensitivity.
摘要翻译：一种单片三轴线性磁传感器及其制造方法，该传感器包括X轴传感器（3），Y轴传感器（4）和Z轴传感器（5）。其中，X轴传感器（3）包括参考桥和至少两个X铁磁通量引导件（8）。 Y轴传感器（4）包括推挽桥和至少两个Y铁磁通量引导件（23,24）。 Z轴传感器（5）包括推挽桥和至少一个Z铁磁通量引导件（10）。参考桥和推挽桥的桥臂各自由一个或多个电连接的磁阻元件（13,14,15,16）形成。感测轴的方向和磁阻元件（13,14,15,16）的被钉扎层的磁化方向都沿着X轴取向。该制造方法包括首先在晶片上沉积磁阻薄膜，然后进行诸如磁性退火，光刻，蚀刻，涂覆等的几个工艺，以便实现传感器。该单片三轴线性磁传感器具有成本低，易制造，线性好，灵敏度高的优点。

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