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公开(公告)号：US20170082698A1
公开(公告)日：2017-03-23
申请号：US14860622
申请日：2015-09-21
Applicant: Apple Inc.
Inventor： Hyuk J. Choi
CPC classification number: G01R33/093 , H01L43/08 , H01L43/10 , H01L43/12
Abstract: CPP-GMR sensors and methods for making them are disclosed. In an implementation, a CPP-GMR sensor comprises: a substrate; an antiferromagnetic (AFM) layer formed on the substrate; a magnetic pin layer formed on the AFM layer; a first wire electrically coupled to the pin layer; a non-magnetic spacer layer formed on the pin layer, the spacer layer insulated from the first wire by electrical insulation material; a sensing layer formed on the spacer layer; a protective layer formed on the sensing layer; and a second wire formed on the protective layer, the second wire electrically coupled to the first wire through the protective layer, the sensing layer, the spacer layer and the pin layer.
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2.发明申请公开(公告)号：US20160306015A1
公开(公告)日：2016-10-20
申请号：US14856302
申请日：2015-09-16
Applicant: Apple Inc.
Inventor： Henry H. Yang , Hyuk J. Choi
CPC classification number: G01R33/0011 , G01R33/093
Abstract: An electronic device may be provided with an electronic compass. The electronic compass may include magnetic sensors. The magnetic sensors may include thin-film magnetic sensor elements such as giant magnetoresistance sensor elements. Magnetic flux concentrators may be used to guide magnetic fields through the sensor elements. The magnetic flux concentrators may be configured to reduce the angular sensitivity of the magnetic sensors. A magnetic flux concentrator may be formed from multiple stacked layers of soft magnetic material separated by non-magnetic material. The non-magnetic material may have a thickness allows the magnetic layers to magnetically couple through the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction.
Abstract translation: 电子设备可以设置有电子罗盘。 电子罗盘可以包括磁性传感器。 磁传感器可以包括诸如巨磁阻传感器元件的薄膜磁传感器元件。 磁通集中器可用于引导磁场穿过传感器元件。 磁通量集中器可以被配置为减小磁性传感器的角度灵敏度。 可以由由非磁性材料分离的软磁材料的多个堆叠层形成磁通集中器。 非磁性材料可以具有允许磁性层通过Ruderman-Kittel-Kasuya-Yosida（RKKY）相互作用的磁性耦合的厚度。
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Patent Agency Ranking
公开(公告)号：US09778324B2
公开(公告)日：2017-10-03
申请号：US14856302
申请日：2015-09-16
Applicant: Apple Inc.
Inventor： Henry H. Yang , Hyuk J. Choi
CPC classification number: G01R33/0011 , G01R33/093
Abstract: An electronic device may be provided with an electronic compass. The electronic compass may include magnetic sensors. The magnetic sensors may include thin-film magnetic sensor elements such as giant magnetoresistance sensor elements. Magnetic flux concentrators may be used to guide magnetic fields through the sensor elements. The magnetic flux concentrators may be configured to reduce the angular sensitivity of the magnetic sensors. A magnetic flux concentrator may be formed from multiple stacked layers of soft magnetic material separated by non-magnetic material. The non-magnetic material may have a thickness allows the magnetic layers to magnetically couple through the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction.
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公开(公告)号：US10302456B1
公开(公告)日：2019-05-28
申请号：US15703282
申请日：2017-09-13
Applicant: Apple Inc.
Inventor： Hyuk J. Choi , Jeffrey N. Gleason , Yonghua Zhao
Abstract: Various embodiments include a position sensor configuration that compensates for a bias field offset. The position sensor configuration may be used for position sensing of components, such as camera components, that are movable via an actuator (e.g., a voice coil motor actuator). In some embodiments, the actuator may include an asymmetric magnet arrangement that produces an asymmetric magnetic field. The asymmetric magnetic field may include one or more bias field components that are offset relative to one or more axes. In some examples, the position sensor configuration may include one or more magnetic field sensor packages. Individual ones of the magnetic field sensor packages may include a magnetic field sensor and one or more compensation magnets. The compensation magnets may be configured to contribute to one or more compensation magnetic fields that counteract the bias field components such that the compensation magnetic fields compensate for the bias field offset.
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公开(公告)号：US10156553B2
公开(公告)日：2018-12-18
申请号：US15085862
申请日：2016-03-30
Applicant: Apple Inc.
Inventor： Hyuk J. Choi , Roberto M. Ribeiro
IPC: G01N33/00
Abstract: An electronic device may have input-output devices such as sensors. The sensors may include environmental sensors that make measurements on the environment surrounding the electronic device. The environmental sensors may make measurements such as temperature measurements, humidity measurements, gas composition measurements, and particulate level measurements. A sensor may communicate with external air through a sensor port in an electronic device housing. An electronic device may have a movable member. The movable member may be moved in response to motion of the electronic device when handled by user or motion of a button or other movable member that is actuated by the user. As the movable member moves, the movable member may create enhanced airflow through the sensor port. This may refresh the air adjacent to an environmental sensor and enhance sensor response time.
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公开(公告)号：US09817086B2
公开(公告)日：2017-11-14
申请号：US14860622
申请日：2015-09-21
Applicant: Apple Inc.
Inventor： Hyuk J. Choi
CPC classification number: G01R33/093 , H01L43/08 , H01L43/10 , H01L43/12
Abstract: CPP-GMR sensors and methods for making them are disclosed. In an implementation, a CPP-GMR sensor comprises: a substrate; an antiferromagnetic (AFM) layer formed on the substrate; a magnetic pin layer formed on the AFM layer; a first wire electrically coupled to the pin layer; a non-magnetic spacer layer formed on the pin layer, the spacer layer insulated from the first wire by electrical insulation material; a sensing layer formed on the spacer layer; a protective layer formed on the sensing layer; and a second wire formed on the protective layer, the second wire electrically coupled to the first wire through the protective layer, the sensing layer, the spacer layer and the pin layer.
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公开(公告)号：US20170284987A1
公开(公告)日：2017-10-05
申请号：US15085862
申请日：2016-03-30
Applicant: Apple Inc.
Inventor： Hyuk J. Choi , Roberto M. Ribeiro
IPC: G01N33/00
CPC classification number: G01N33/0009
Abstract: An electronic device may have input-output devices such as sensors. The sensors may include environmental sensors that make measurements on the environment surrounding the electronic device. The environmental sensors may make measurements such as temperature measurements, humidity measurements, gas composition measurements, and particulate level measurements. A sensor may communicate with external air through a sensor port in an electronic device housing. An electronic device may have a movable member. The movable member may be moved in response to motion of the electronic device when handled by user or motion of a button or other movable member that is actuated by the user. As the movable member moves, the movable member may create enhanced airflow through the sensor port. This may refresh the air adjacent to an environmental sensor and enhance sensor response time.
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