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公开(公告)号：US10539432B2
公开(公告)日：2020-01-21
申请号：US15882437
申请日：2018-01-29
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Armin Satz
IPC: G01D5/22
Abstract: A sensor module may include a magnet with a magnetization in a first direction, and a sensor chip including a first sensing element and a second sensing element arranged on a plane defined by the sensor chip. The first direction may be substantially parallel to the main surface of the sensor chip. The first sensing element and the second sensing element may be sensitive to an in-plane component of a magnetic field along the first direction or may be sensitive to an in-plane component of the magnetic field perpendicular to the first direction. The first sensing element and the second sensing element may be positioned beyond an edge of the magnet along the first direction such that the first sensing element and the second sensing element protrude past the edge of the magnet along the first direction.
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公开(公告)号：US09316663B2
公开(公告)日：2016-04-19
申请号：US13653611
申请日：2012-10-17
Applicant: Infineon Technologies AG
Inventor： Armin Satz
CPC classification number: G01R33/091 , G01D5/145 , G01D11/245 , G01P3/487 , G01P3/488 , G01R33/0011 , G01R33/09
Abstract: The present disclosure provides for techniques to improve the sensitivity of magnetic sensor systems. One embodiment of a magnetic sensor system includes a magnetic biasing body comprised of a hard magnetic material and including a recess therein. The recess corresponds to a magnetic flux guidance surface of the magnetic biasing body. The magnetic sensor system also includes a magnetic sensing element arranged in or proximate to the recess. A magnetic flux concentrator, which is made of a soft magnetic material, is disposed in the recess between the magnetic flux guidance surface and the magnetic sensing element. Other techniques are also described.
Abstract translation: 本公开提供了用于提高磁传感器系统的灵敏度的技术。 磁传感器系统的一个实施例包括由硬磁材料构成并在其中包括凹部的磁偏置体。 凹部对应于磁性偏置体的磁通引导面。 磁传感器系统还包括设置在凹部中或靠近凹部的磁感测元件。 由磁性材料制成的磁通集中器设置在磁通引导表面和磁感测元件之间的凹槽中。 还描述了其它技术。
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公开(公告)号：US11789097B2
公开(公告)日：2023-10-17
申请号：US17246820
申请日：2021-05-03
Applicant: Infineon Technologies AG
Inventor： Dirk Hammerschmidt , Armin Satz , Juergen Zimmer
CPC classification number: G01R33/093 , H01F10/3254 , H01F10/3272 , H01F41/304 , H01F41/308 , H10N50/10 , H10N50/85
Abstract: A method for generating a closed flux magnetization pattern of a predetermined rotational direction in a magnetic reference layer of a magnetic layer stack is provided. The method includes applying an external magnetic field in a predetermined direction to the magnetic layer stack causing magnetic saturation of the magnetic reference layer and of a pinned layer of the magnetic layer stack; and reducing the external magnetic field to form a first closed flux magnetization pattern in the magnetic reference layer and a second closed flux magnetization pattern in the pinned layer.
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公开(公告)号：US20210003395A1
公开(公告)日：2021-01-07
申请号：US17027185
申请日：2020-09-21
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Armin Satz , Ferdinand Gastinger
IPC: G01B13/02 , G01R33/022 , G01D5/14 , G01R33/07 , G01R33/09
Abstract: Magnetic position sensors, systems and methods are disclosed. In an embodiment, a position sensing system includes a magnetic field source; and a sensor module spaced apart from the magnetic field source, at least one of the magnetic field source or the sensor module configured to move relative to the other along a path, the sensor module configured to determine a position of the magnetic field source relative to the sensor module from a nonlinear function of a ratio of a first component of a magnetic field of the magnetic field source to a second component of the magnetic field of the magnetic field source.
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公开(公告)号：US10852365B2
公开(公告)日：2020-12-01
申请号：US16023914
申请日：2018-06-29
Applicant: Infineon Technologies AG
Inventor： Johannes Guettinger , Simon Hainz , Armin Satz
IPC: G01R33/02 , G01R33/025 , G01R33/00 , G01R33/09 , H01L43/08
Abstract: A magnetic sensor includes a bridge circuit including a plurality of magnetic field sensor elements, each configured to generate a sensor signal in response to the magnetic field impinging thereon, where the bridge circuit is configured to generate a differential signal based on sensor signals generated by the plurality of magnetic field sensor elements. The bridge circuit further includes a plurality of resistors, where at least one resistor of the plurality of resistors is coupled in parallel to each of the plurality of magnetic field sensor elements.
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Patent Agency Ranking
公开(公告)号：US10782127B2
公开(公告)日：2020-09-22
申请号：US14251861
申请日：2014-04-14
Applicant: INFINEON TECHNOLOGIES AG
Inventor： Udo Ausserlechner , Armin Satz , Ferdinand Gastinger
Abstract: Magnetic position sensors, systems and methods are disclosed. In an embodiment, a position sensing system includes a magnetic field source; and a sensor module spaced apart from the magnetic field source, at least one of the magnetic field source or the sensor module configured to move relative to the other along a path, the sensor module configured to determine a position of the magnetic field source relative to the sensor module from a nonlinear function of a ratio of a first component of a magnetic field of the magnetic field source to a second component of the magnetic field of the magnetic field source.
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公开(公告)号：US20160195592A1
公开(公告)日：2016-07-07
申请号：US15067600
申请日：2016-03-11
Applicant: Infineon Technologies AG
Inventor： Armin Satz
IPC: G01R33/09
CPC classification number: G01R33/091 , G01D5/145 , G01D11/245 , G01P3/487 , G01P3/488 , G01R33/0011 , G01R33/09
Abstract: The present disclosure provides for techniques to improve the sensitivity of magnetic sensor systems. One embodiment of a magnetic sensor system includes a magnetic biasing body comprised of a hard magnetic material and including a recess therein. The recess corresponds to a magnetic flux guidance surface of the magnetic biasing body. The magnetic sensor system also includes a magnetic sensing element arranged in or proximate to the recess. A magnetic flux concentrator, which is made of a soft magnetic material, is disposed in the recess between the magnetic flux guidance surface and the magnetic sensing element. Other techniques are also described.
Abstract translation: 本公开提供了用于提高磁传感器系统的灵敏度的技术。 磁传感器系统的一个实施例包括由硬磁材料构成并在其中包括凹部的磁偏置体。 凹部对应于磁性偏置体的磁通引导面。 磁传感器系统还包括设置在凹部中或靠近凹部的磁感测元件。 由磁性材料制成的磁通集中器设置在磁通引导表面和磁感测元件之间的凹槽中。 还描述了其它技术。
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公开(公告)号：US10989769B2
公开(公告)日：2021-04-27
申请号：US14141660
申请日：2013-12-27
Applicant: Infineon Technologies AG
Inventor： Juergen Zimmer , Armin Satz , Wolfgang Raberg , Hubert Brueckl , Dieter Suess
IPC: G01R33/09
Abstract: A device according to an embodiment may comprise a magneto-resistive structure comprising a magnetic free layer with a spontaneously generated in-plane closed flux magnetization pattern and a magnetic reference layer having a non-closed flux magnetization pattern.
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公开(公告)号：US10907991B2
公开(公告)日：2021-02-02
申请号：US16129198
申请日：2018-09-12
Applicant: Infineon Technologies AG
Inventor： Gernot Binder , Armin Satz
Abstract: A magnetic sensor device for determining a rotation speed, a direction of rotation, and/or a rotation angle of a magnetic component rotating about a rotation axis is provided. The magnetic sensor device includes a magnet being rotationally symmetrical with respect to a symmetry axis, wherein a recess is formed within the magnet along the symmetry axis. Further, the magnetic sensor device includes a first magnetic sensor element arranged within the recess and on the symmetry axis, and a second magnetic sensor element arranged within the recess and on the symmetry axis. The magnetic sensor device additionally includes an integrated circuit arranged within the recess and configured to determine the rotation speed, the direction of rotation, and/or the rotation angle of the magnetic component based on a first output signal of the first magnetic sensor element and a second output signal of the second magnetic sensor element.
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公开(公告)号：US10571527B2
公开(公告)日：2020-02-25
申请号：US15602923
申请日：2017-05-23
Applicant: Infineon Technologies AG
Inventor： Dieter Suess , Hubert Brueckl , Klemens Pruegl , Wolfgang Raberg , Armin Satz
Abstract: The present disclosure relates to a magnetic sensor device having at least one magneto-resistive structure. The magneto-resistive structure comprises a magnetic free layer configured to generate a closed flux magnetization pattern in the free layer, and a magnetic reference layer having non-closed flux reference magnetization pattern; and a magnetic flux concentrator configured to increase a flux density of an external magnetic field in the magnetic free layer.
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