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公开(公告)号：US20210328483A1
公开(公告)日：2021-10-21
申请号：US17232523
申请日：2021-04-16
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: A device includes a substrate with an excitation coil configured to generate a magnetic field in reaction to an input signal fed in, and with a pickup coil arrangement configured to generate an output signal in reaction to a magnetic field. The excitation coil includes one or more turns arranged around the pickup coil arrangement in a ring-shaped manner in a plan view of the substrate plane. The device further includes a chip package comprising at least one electrical connection connected to the pickup coil arrangement by means of a signal-carrying conductor. In accordance with the concept described herein, the chip package is positioned on the substrate in such a way that the signal-carrying conductor and the one or more turns of the excitation coil do not overlap in a plan view of the substrate plane.
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公开(公告)号：US20210311139A1
公开(公告)日：2021-10-07
申请号：US17220129
申请日：2021-04-01
Applicant: Infineon Technologies AG
Inventor： Dieter SUESS , Udo AUSSERLECHNER , Armin SATZ
Abstract: A device includes at least one layer stack including a ferromagnetic layer, at least one magnetic reference layer, and a layer arranged therebetween having a magnetic tunnel junction. The at least one magnetic reference layer has a fixed first magnetization direction, and the ferromagnetic layer has a variable second magnetization direction that is variable relative to the first magnetization direction based on a spin orbit torque effect. The device further includes a spin orbit torque conductor arranged on a first side of the layer stack adjacent to the ferromagnetic layer, and a control unit configured to provide the spin orbit torque conductor with a time-variant input signal with temporally varying polarity and at the same time to determine a conductance of the tunnel junction dependent on the time-variant input signal and, based on the conductance, to detect a magnetic field acting on the device externally.
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公开(公告)号：US20210018309A1
公开(公告)日：2021-01-21
申请号：US16928516
申请日：2020-07-14
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: A rotation angle sensing device is suggested, said device including: a magnetic field source that is mechanically coupled to a rotatable shaft; at least one conductive target that is mechanically coupled to the rotatable shaft; a magnetic angle sensor that is configured to detect the magnetic field of the magnetic field source; and at least one coil that is configured to excite an eddy current in the at least one conductive target and to receive a signal induced by the eddy current. Also, a corresponding method is provided
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公开(公告)号：US20200173811A1
公开(公告)日：2020-06-04
申请号：US16688727
申请日：2019-11-19
Applicant: Infineon Technologies AG
Inventor： Wolfgang GRANIG , Udo AUSSERLECHNER
Abstract: A rotation angle sensing device is suggested, which comprises: a shaft that is rotatable around a rotation axis; a magnetic field source that is attached to the shaft; and at least one angle sensor that is arranged at an out-of-shaft location adjacent to the magnetic field source, wherein the angle sensor comprises a plane for measuring two components of a magnetic field emitted by the magnetic field source, and wherein the plane is tilted against an axis, which axis is the rotation axis of the shaft. Also, a corresponding method for sensing a rotational angle of a shaft is provided.
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公开(公告)号：US20190242955A1
公开(公告)日：2019-08-08
申请号：US16218852
申请日：2018-12-13
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
CPC classification number: G01R33/075 , G01D5/145 , G01R33/077
Abstract: A Hall sensor apparatus has a Hall effect field with at least five contacts which are wired to at least five connections, wherein none of the at least five contacts is wired to more than one of the at least five connections, a supply circuit and a measurement circuit. In a first operational phase, a supply current enters the Hall effect field or leaves the Hall effect field through one single connection of the at least five connections, and two differential signals are measured at different common-mode potentials in each case between two of the at least five connections. The measurement circuit is designed to combine the measured differential signals into a total signal.
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Patent Agency Ranking
公开(公告)号：US20190204063A1
公开(公告)日：2019-07-04
申请号：US16294305
申请日：2019-03-06
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER , Wolfgang GRANIG
Abstract: A magnetic angle sensor device and a method for operating such device is provided. The magnetic angle sensor device includes a shaft rotatable around a rotation axis; a magnetic arrangement coupled to the shaft, where the magnetic arrangement produces a differential magnetic field comprising a plurality of diametric magnetic fields; a first magnetic angle sensor provided in the differential magnetic field and configured to generate a first signal that represents a first angle based on a first diametric magnetic field of the differential magnetic field; a second magnetic angle sensor provided in the differential magnetic field and configured to generate a second signal that represents a second angle based on a second diametric magnetic field of the differential magnetic field; and a combining circuit configured to determine a combined rotation angle based on the first signal and on the second signal.
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公开(公告)号：US20190170497A1
公开(公告)日：2019-06-06
申请号：US16203865
申请日：2018-11-29
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: The present disclosure relates to a magnetic angle sensor arrangement. The magnetic angle sensor arrangement comprises a multipole magnet rotatable around a rotation axis. A geometric arrangement of the multipole magnet is rotationally asymmetric with respect to the rotation axis. A plurality of magnetic field sensor circuits are placed around the rotation axis at predefined equidistant angular positions in a predefined axial distance from the multipole magnet, wherein each magnetic field sensor circuit comprises a first magnetic field sensor element sensitive to first magnetic field component and a second magnetic field sensor element sensitive to a second magnetic field component perpendicular to the first magnetic field component. Processing circuitry is configured to compute a first intermediate angular information based on a combination of signals from the plurality of first magnetic field sensor elements, to compute a second intermediate angular information based on a combination of signals from the plurality of second magnetic field sensor elements, and to compute an estimate of a rotation angle of the fixture and/or the multipole magnet based on the first and second intermediate angular information.
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公开(公告)号：US20180172474A1
公开(公告)日：2018-06-21
申请号：US15808958
申请日：2017-11-10
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: A magnetic angle sensing system is suggested comprising a first magnetic sensing device, a second magnetic sensing device, a third magnetic sensing device, a substrate comprising the first magnetic sensing device, the second magnetic sensing device and the third magnetic sensing device, wherein the first magnetic sensing device, the second magnetic sensing device and the third magnetic sensing device are each arranged such to be responsive to a magnetic field component that is perpendicular to a main surface of the substrate, wherein each or the first magnetic sensing device, the second magnetic sensing device and the third magnetic sensing device comprises the same number of magnetic sensing elements, wherein the second magnetic sensing device is arranged on the semiconductor surface rotated by 120° in view of the first magnetic sensing device clockwise around a reference point, wherein the third magnetic sensing device is arranged on the semiconductor surface rotated by 120° in view of the first magnetic sensing device counter-clockwise around the reference point.
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公开(公告)号：US20170345997A1
公开(公告)日：2017-11-30
申请号：US15596017
申请日：2017-05-16
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
CPC classification number: H01L43/04 , G01R33/07 , H01L43/065
Abstract: The present disclosure relates to 3-dimensional Hall sensor devices comprising a Hall sensor element having a Hall effect region implemented in a 3-dimensional shell and comprising at least three terminals. Each terminal is connected to at least one electrical contact of the Hall effect region and each electrical contact is disposed at a different region of the 3-dimensional shell. The present disclosure further discloses spinning current/voltage schemes for offset cancellation in such 3-dimensional Hall sensor devices.
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公开(公告)号：US20170241802A1
公开(公告)日：2017-08-24
申请号：US15421034
申请日：2017-01-31
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
CPC classification number: G01D5/14 , G01D5/145 , H01F1/0036 , H01F1/10 , H01F7/0294 , H01F13/003 , H01F41/0266 , H01F41/0293
Abstract: Magnet arrangements, sensor devices and corresponding methods are provided comprising a first magnet portion and a second magnet portion. The first magnet portion is spaced apart from the second magnet portion, and the second magnet portion comprises a bore. In a corresponding sensor device, a sensor element may be provided at a position between the first and second magnet portions.
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