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1.发明申请公开(公告)号：US20190018080A1
公开(公告)日：2019-01-17
申请号：US15647709
申请日：2017-07-12
Applicant: NXP B.V.
Inventor： Stephan Marauska , Jörg Kock , Mark Isler , Harmut Matz , Dennis Helmboldt
Abstract: A system comprises at least one magnetic field sensor having a magnetic sense element formed on a substrate. The sense element senses a magnetic field along a sense axis oriented in a first direction parallel to a surface of the substrate. A shield structure is formed on the substrate. The shield structure has first and second shield portions and the magnetic sense element is disposed between the shield portions. Each of the shield portions includes a body and first and second brim segments extending from opposing ends of the body. The body is aligned parallel to a second direction perpendicular to the first direction and parallel to the surface of the substrate. The brim segments are aligned substantially parallel to the first direction. The shield portions are arranged in mirror symmetry with the brim segments of each of the shield portions extending toward one another.
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公开(公告)号：US20190027682A1
公开(公告)日：2019-01-24
申请号：US15652311
申请日：2017-07-18
Applicant: NXP B.V.
Inventor： Mark Isler , Klaus Reimann , Hartmut Matz , Jörg Kock
Abstract: A method includes performing an ion beam etching process on a tunnel magnetoresistance (TMR) stack to remove material portions of a first magnetic layer and a tunnel barrier layer of the TMR stack. The ion beam etching process stops at a top surface of a second magnetic layer of the TMR stack. A protective layer is deposited over the TMR stack. Another etch process is performed to remove the protective layer such that a portion of the second magnetic layer is exposed from the protective layer and a spacer is formed from a remaining portion of the protective layer. The spacer surrounds sidewalls of the first magnetic layer and the tunnel barrier layer. The portion of the second magnetic layer exposed from the protective layer is removed so that a TMR sensor element remains, where the TMR sensor element includes a bottom magnet, a top magnet, and a tunnel junction.
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公开(公告)号：US20170139016A1
公开(公告)日：2017-05-18
申请号：US15347872
申请日：2016-11-10
Applicant: NXP B.V.
Inventor： Klaus Reimann , Robert van Veldhoven , Jaap Ruigrok , Selcuk Ersoy , Ralf van Otten , Jörg Kock
CPC classification number: G01R33/0029 , G01R33/0017 , G01R33/0035 , G01R33/0082 , G01R33/096
Abstract: A magnetic field sensor is disclosed for providing an output signal in response to an external magnetic field. The sensor comprises a primary magnetic field transducer for producing a primary signal in response to the external magnetic field and having a first magnetic field saturation characteristic; a secondary magnetic field transducer for producing a secondary signal in response to the external magnetic field and having a second magnetic field saturation characteristic. The first magnetic field saturation characteristic is different from the second magnetic field saturation characteristic. The sensor is configured to use the secondary signal to correct for errors in the output signal arising from saturation of the primary transducer.
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公开(公告)号：US20160231141A1
公开(公告)日：2016-08-11
申请号：US15023004
申请日：2014-09-05
Applicant: CONTINENTAL TEVES AG & CO. OHG , NXP B.V.
Inventor： Ralf Endres , Jochen Zachow , Andreas Kannengiesser , Jörg Kock , Robert Meyer
CPC classification number: G01D5/24466 , B60T8/885 , B60T2270/416 , G01P3/487 , G01P3/489 , G01P21/02
Abstract: A method for transmitting a measured value in a data transmission signal, the method including: introduction of the measured value into the data transmission signal; introduction of error information after said measured value into the data transmission signal, from which information it can be deduced whether the measured value contains an error; and introduction of evaluation information which describes the error information into the data transmission signal after the error information, if the measured value contains an error.
Abstract translation: 一种用于在数据传输信号中发送测量值的方法，所述方法包括：将测量值引入到数据传输信号中; 将所述测量值之后的误差信息引入到数据传输信号中，从其中可以推导出测量值是否包含误差的信息; 以及如果测量值包含错误，则将描述错误信息的评估信息引入到错误信息之后的数据传输信号中。
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公开(公告)号：US10914611B2
公开(公告)日：2021-02-09
申请号：US16113229
申请日：2018-08-27
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Jörg Kock , Dennis Helmboldt , Ralf van Otten , Jaap Ruigrok
IPC: G01D5/16
Abstract: A system includes a magnet having an axis of rotation, the magnet being configured to produce a magnetic field. The system further includes a plurality of magnetoresistive sensor elements, each of the magnetoresistive sensor elements having a magnetic free layer configured to generate a vortex magnetization pattern in the magnetic free layer, and the magnetoresistive sensor elements being configured to produce output signals in response to the magnetic field. A rotation angle of a rotating element to which the magnet is coupled may be determined using the plurality of output signals.
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Patent Agency Ranking
公开(公告)号：US10591320B2
公开(公告)日：2020-03-17
申请号：US15836975
申请日：2017-12-11
Applicant: NXP B.V.
Inventor： Stephan Marauska , Jan Przytarski , Jörg Kock , Edwin Schapendonk
IPC: G01D5/244 , G01R33/025 , G01R33/09 , G01R33/00
Abstract: A system includes a magnetic sense element for detecting an external magnetic field along a sensing axis and a magnetic field source proximate the magnetic sense element for providing an auxiliary magnetic field along the sensing axis. The magnetic sense element produces a first output signal having a magnetic field signal component, responsive to the external magnetic field, that is modulated by an auxiliary magnetic field signal component responsive to the auxiliary magnetic field. A processing circuit identifies from the first output signal an influence of a magnetic interference field on the auxiliary magnetic field signal component, the magnetic interference field being directed along a non-sensing axis of the magnetic sense element, and applies a correction factor to the magnetic field signal component to produce a second output signal in which the influence of the magnetic interference field is substantially removed.
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公开(公告)号：US10113886B2
公开(公告)日：2018-10-30
申请号：US15023004
申请日：2014-09-05
Applicant: Continental Teves AG & Co. oHG , NXP B.V.
Inventor： Ralf Endres , Jochen Zachow , Andreas Kannengiesser , Jörg Kock , Robert Meyer
Abstract: A method for transmitting a measured value in a data transmission signal, the method including: introduction of the measured value into the data transmission signal; introduction of error information after said measured value into the data transmission signal, from which information it can be deduced whether the measured value contains an error; and introduction of evaluation information which describes the error information into the data transmission signal after the error information, if the measured value contains an error.
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公开(公告)号：US10006972B2
公开(公告)日：2018-06-26
申请号：US15347872
申请日：2016-11-10
Applicant: NXP B.V.
Inventor： Klaus Reimann , Robert van Veldhoven , Jaap Ruigrok , Selcuk Ersoy , Ralf van Otten , Jörg Kock
CPC classification number: G01R33/0029 , G01R33/0017 , G01R33/0035 , G01R33/0082 , G01R33/096
Abstract: A magnetic field sensor is disclosed for providing an output signal in response to an external magnetic field. The sensor comprises a primary magnetic field transducer for producing a primary signal in response to the external magnetic field and having a first magnetic field saturation characteristic; a secondary magnetic field transducer for producing a secondary signal in response to the external magnetic field and having a second magnetic field saturation characteristic. The first magnetic field saturation characteristic is different from the second magnetic field saturation characteristic. The sensor is configured to use the secondary signal to correct for errors in the output signal arising from saturation of the primary transducer.
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9.发明授权公开(公告)号：US10914609B2
公开(公告)日：2021-02-09
申请号：US16011974
申请日：2018-06-19
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Dennis Helmboldt , Jaap Ruigrok , Ralf van Otten , Jan Przytarski , Jörg Kock
Abstract: A system includes a magnet configured to produce a magnetic field, the magnet having an asymmetric magnetization configuration that produces a distinct feature in the magnetic field. The asymmetric magnetization configuration can be produced via an asymmetric physical characteristic, nonuniform magnetization strengths, nonuniform magnetization distributions, off-centered magnet, and so forth. Magnetic field sensors are configured to produce output signals in response to the magnetic field, the output signals being indicative of the distinct feature in the magnetic field. A processing circuit receives the output signals and determines a rotation angle for the magnet using the output signals, the rotation angle having a range of 0-360°.
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公开(公告)号：US20200064157A1
公开(公告)日：2020-02-27
申请号：US16113229
申请日：2018-08-27
Applicant: NXP B.V.
Inventor： Stephan Marauska , Edwin Schapendonk , Jörg Kock , Dennis Helmboldt , Ralf van Otten , Jaap Ruigrok
IPC: G01D5/16
Abstract: A system includes a magnet having an axis of rotation, the magnet being configured to produce a magnetic field. The system further includes a plurality of magnetoresistive sensor elements, each of the magnetoresistive sensor elements having a magnetic free layer configured to generate a vortex magnetization pattern in the magnetic free layer, and the magnetoresistive sensor elements being configured to produce output signals in response to the magnetic field. A rotation angle of a rotating element to which the magnet is coupled may be determined using the plurality of output signals.
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