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1.发明授权公开(公告)号：US07196877B2
公开(公告)日：2007-03-27
申请号：US10743130
申请日：2003-12-23
申请人： Masatoshi Yoshikawa , Masayuki Takagishi , Tomomi Funayama , Kohichi Tateyama , Hitoshi Iwasaki , Hideaki Fukuzawa
发明人： Masatoshi Yoshikawa , Masayuki Takagishi , Tomomi Funayama , Kohichi Tateyama , Hitoshi Iwasaki , Hideaki Fukuzawa
IPC分类号： G11B5/33
CPC分类号： H01L43/08 , B82Y10/00 , B82Y25/00 , G11B5/00 , G11B5/313 , G11B5/3143 , G11B5/3903 , G11B2005/3996 , H01F10/30 , H01F10/3254 , H01F10/3268
摘要： A magnetoresistive element includes a magnetoresistive film having a magnetization pinned layer, a magnetization free layer, and a nonmagnetic intermediate layer. A magnetization direction of the magnetization pinned layer is substantially fixed in an external magnetic field, a magnetization direction of the magnetization free layer is configured to change in the external magnetic field, and the nonmagnetic intermediate layer formed between the magnetization pinned layer and the magnetization free layer and has a stacked structure of a first non-metallic intermediate layer/a metal intermediate layer/a second non-metallic intermediate layer. The magnetoresistive element also includes a pair of electrodes coupled to the magnetoresistive film and is configured to provide a current in a direction substantially perpendicular to a surface of the magnetoresistive film.
摘要翻译： 磁阻元件包括具有磁化钉扎层，磁化自由层和非磁性中间层的磁阻膜。 磁化被钉扎层的磁化方向基本上固定在外部磁场中，磁化自由层的磁化方向被配置为在外部磁场中改变，并且形成在磁化钉扎层和无磁化之间的非磁性中间层 并且具有第一非金属中间层/金属中间层/第二非金属中间层的堆叠结构。 磁阻元件还包括耦合到磁阻膜的一对电极，并且被配置为在基本垂直于磁阻膜的表面的方向上提供电流。
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2.发明授权公开(公告)号：US06724582B2
公开(公告)日：2004-04-20
申请号：US10050543
申请日：2002-01-18
IPC分类号： G11B539
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B5/3909 , G11B5/3932 , G11B2005/3996 , H01L43/08
摘要： A current perpendicular to plane type magnetoresistive device has a magnetoresistive film, a pair of electrodes which allow a sense current to flow through the magnetoresistive film in a perpendicular direction to the plane thereof, and a biasing film which imparts a biasing magnetic field to the magnetoresistive film in a parallel direction to film plane. The direction of the magnetic field generated by the sense current flowing through the magnetoresistive film in the perpendicular direction to film plane is made substantially anti-parallel to the direction of the biasing magnetic field in a vicinity of a portion of the magnetoresistive film where a signal magnetic flux is introduced.
摘要翻译： 垂直于平面型磁阻器件的电流具有磁阻膜，一对电极，其允许感测电流沿垂直于其平面的方向流过磁阻膜;以及偏置膜，其向磁阻施加偏置磁场 胶片平行于胶片平面。 由磁阻膜在垂直于膜平面的方向上流过的感测电流产生的磁场的方向与磁阻膜的一部分附近的偏置磁场的方向基本反平行，其中信号 引入磁通量。
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3.发明申请公开(公告)号：US20050052787A1
公开(公告)日：2005-03-10
申请号：US10936715
申请日：2004-09-09
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3906 , G11B5/398 , G11B5/3983 , G11B2005/3996 , H01F10/3259 , H01F10/3263 , H01L43/08
摘要： A magnetoresistance effect element of the dual spin valve type using a current-perpendicular-to-the-plane (CPP) system where a sensing current flows perpendicular to the stacked faces of a plurality of conductive layers, the magnetoresistance effect element comprises a first unit which includes a free layer and a first pinning layer, a second unit which includes the free layer shared with the first unit and a second pinning layer, a first current control layer which is provided in the first unit and limits the flow quantity of the sensing current, and a second current control layer which is provided in the second unit and limits the flow quantity of the sensing current.
摘要翻译： 使用电流垂直于平面（CPP）系统的双自旋阀类型的磁阻效应元件，其中感测电流垂直于多个导电层的堆叠面流动，磁阻效应元件包括第一单元 其包括自由层和第一钉扎层，第二单元，其包括与第一单元共享的自由层和第二钉扎层，第一电流控制层，设置在第一单元中并限制感测的流量 电流和第二电流控制层，其设置在第二单元中并限制感测电流的流量。
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4.发明授权CCP-CCP-GMR head assembly with good operating life, and magnetic recording/reproducing apparatus therewith 有权CCP-CCP-GMR头组件，具有良好的使用寿命，以及磁记录/再现装置公开(公告)号：US07304825B2
公开(公告)日：2007-12-04
申请号：US10985886
申请日：2004-11-12
IPC分类号： G11B5/39
CPC分类号： G11B5/1272 , G11B5/33 , G11B5/39
摘要： Disclosed is a CCP-CPP-GMR head assembly which has: a CCP-CPP-GMR head that includes at least a current control layer having as a microstructure a plurality of truncated cone electric conductors with axes the same as a current direction and an insulator filling between the plurality of truncated cone electric conductors, and in which a surface on which a larger-area basal plane of the plurality of truncated cone electric conductors is greater in number is a first surface of the current control layer and a surface of an opposite side of the first surface is a second surface of the current control layer; and a sense current source providing the CCP-CPP-GMR head with a sense current that flows from the second surface to the first surface, a magnetic recording/reproducing apparatus having such a head, and a specification method of an appropriate sense current direction of the CCP-CPP-GMR head.
摘要翻译： 公开了一种CCP-CPP-GMR头组件，其具有：CCP-CPP-GMR头，其至少包括具有作为微结构的电流控制层，多个具有与电流方向相同的轴的截头锥形电导体和绝缘体 多个截锥形电导体之间的填充，其中多个截锥形电导体的较大面积的基面在其上较大的表面是电流控制层的第一表面和相反的表面 第一表面的一侧是电流控制层的第二表面; 以及感测电流源，为CCP-CPP-GMR头提供从第二表面流向第一表面的感测电流，具有这种头的磁记录/再现装置，以及适当的感应电流方向的指定方法 CCP-CPP-GMR头。
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5.发明申请CURRENT-PERPENDICULAR-TO-PLANE MAGNETORESISTANCE EFFECT DEVICE WITH DOUBLE CURRENT DOUBLE LAYERS 审中-公开具有双电流双层的电流 - 平面磁平面效应器件公开(公告)号：US20080106826A1
公开(公告)日：2008-05-08
申请号：US11965177
申请日：2007-12-27
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3906 , G11B5/398 , G11B5/3983 , G11B2005/3996 , H01F10/3259 , H01F10/3263 , H01L43/08
摘要： A magnetoresistance effect element of the dual spin valve type using a current-perpendicular-to-the-plane (CPP) system where a sensing current flows perpendicular to the stacked faces of a plurality of conductive layers, the magnetoresistance effect element comprises a first unit which includes a free layer and a first pinning layer, a second unit which includes the free layer shared with the first unit and a second pinning layer, a first current control layer which is provided in the first unit and limits the flow quantity of the sensing current, and a second current control layer which is provided in the second unit and limits the flow quantity of the sensing current.
摘要翻译： 使用电流垂直于平面（CPP）系统的双自旋阀类型的磁阻效应元件，其中感测电流垂直于多个导电层的堆叠面流动，磁阻效应元件包括第一单元 其包括自由层和第一钉扎层，第二单元，其包括与第一单元共享的自由层和第二钉扎层，第一电流控制层，设置在第一单元中并限制感测的流量 电流和第二电流控制层，其设置在第二单元中并限制感测电流的流量。
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6.发明申请Current-perpendicular-to-plane magnetoresistance effect device with double current control layers 审中-公开具有双电流控制层的电流 - 垂直于平面的磁阻效应器件公开(公告)号：US20080106825A1
公开(公告)日：2008-05-08
申请号：US11965123
申请日：2007-12-27
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3906 , G11B5/398 , G11B5/3983 , G11B2005/3996 , H01F10/3259 , H01F10/3263 , H01L43/08
摘要： A magnetoresistance effect element of the dual spin valve type using a current-perpendicular-to-the-plane (CPP) system where a sensing current flows perpendicular to the stacked faces of a plurality of conductive layers, the magnetoresistance effect element comprises a first unit which includes a free layer and a first pinning layer, a second unit which includes the free layer shared with the first unit and a second pinning layer, a first current control layer which is provided in the first unit and limits the flow quantity of the sensing current, and a second current control layer which is provided in the second unit and limits the flow quantity of the sensing current.
摘要翻译： 使用电流垂直于平面（CPP）系统的双自旋阀类型的磁阻效应元件，其中感测电流垂直于多个导电层的堆叠面流动，磁阻效应元件包括第一单元 其包括自由层和第一钉扎层，第二单元，其包括与第一单元共享的自由层和第二钉扎层，第一电流控制层，设置在第一单元中并限制感测的流量 电流和第二电流控制层，其设置在第二单元中并限制感测电流的流量。
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7.发明授权CCP-CPP-GMR head assembly, magnetic recording/reproducing apparatus, and specification method of appropriate sense current direction of CCP-CPP-GMR head 失效CCP-CPP-GMR头组件，磁记录/再现装置以及CCP-CPP-GMR头适当感应电流方向的规范方法公开(公告)号：US07514916B2
公开(公告)日：2009-04-07
申请号：US11834855
申请日：2007-08-07
CPC分类号： G11B5/1272 , G11B5/33 , G11B5/39
摘要： Disclosed is a CCP-CPP-GMR head assembly which has: a CCP-CPP-GMR head that includes at least a current control layer having as a microstructure a plurality of truncated cone electric conductors with axes the same as a current direction and an insulator filling between the plurality of truncated cone electric conductors, and in which a surface on which a larger-area basal plane of the plurality of truncated cone electric conductors is greater in number is a first surface of the current control layer and a surface of an opposite side of the first surface is a second surface of the current control layer; and a sense current source providing the CCP-CPP-GMR head with a sense current that flows from the second surface to the first surface, a magnetic recording/reproducing apparatus having such a head, and a specification method of an appropriate sense current direction of the CCP-CPP-GMR head.
摘要翻译： 公开了一种CCP-CPP-GMR头组件，其具有：CCP-CPP-GMR头，其至少包括具有作为微结构的电流控制层，多个具有与电流方向相同的轴的截头锥形电导体和绝缘体 多个截锥形电导体之间的填充，其中多个截锥形电导体的较大面积的基面在其上较大的表面是电流控制层的第一表面和相反的表面 第一表面的一侧是电流控制层的第二表面; 以及感测电流源，为CCP-CPP-GMR头提供从第二表面流向第一表面的感测电流，具有这种头的磁记录/再现装置，以及适当的感应电流方向的指定方法 CCP-CPP-GMR头。
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8.发明授权公开(公告)号：US07405906B2
公开(公告)日：2008-07-29
申请号：US10936715
申请日：2004-09-09
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G01R33/093 , G11B5/3906 , G11B5/398 , G11B5/3983 , G11B2005/3996 , H01F10/3259 , H01F10/3263 , H01L43/08
摘要： A magnetoresistance effect element of the dual spin valve type using a current-perpendicular-to-the-plane (CPP) system where a sensing current flows perpendicular to the stacked faces of a plurality of conductive layers, the magnetoresistance effect element comprises a first unit which includes a free layer and a first pinning layer, a second unit which includes the free layer shared with the first unit and a second pinning layer, a first current control layer which is provided in the first unit and limits the flow quantity of the sensing current, and a second current control layer which is provided in the second unit and limits the flow quantity of the sensing current.
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公开(公告)号：US06940700B2
公开(公告)日：2005-09-06
申请号：US10176577
申请日：2002-06-24
CPC分类号： G11B5/3925 , G11B5/012 , G11B5/3932
摘要： In a magnetic head having magnetic yoke layers, each magnetic yoke layer includes a yoke projecting portion (2A) projected toward a recording medium, and yoke setback portions (2B) set back from the yoke projecting portion. A first bias magnetic field applying film (5) of an antiferromagnetic material is formed to cover the yoke projecting portion whereas a second bias magnetic field applying film (6) of a ferromagnetic material may be formed on opposite side surfaces of the yoke projecting portion.
摘要翻译： 在具有磁轭层的磁头中，每个磁轭层包括朝向记录介质突出的磁轭突出部分（2A），以及从磁轭突出部分回放的磁轭翻转部分（2B）。 形成反铁磁材料的第一偏置磁场施加膜（5）以覆盖磁轭突出部分，而铁磁材料的第二偏置磁场施加膜（6）可以形成在磁轭突出部分的相对侧表面上。
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10.发明申请CCP-CCP-GMR head assembly, magnetic recording/reproducing apparatus, and specification method of appropriate sense current direction of CCP-CPP-GMR head 有权CCP-CCP-GMR头组件，磁记录/再现装置和CCP-CPP-GMR头适当感应电流方向的规范方法公开(公告)号：US20050190510A1
公开(公告)日：2005-09-01
申请号：US10985886
申请日：2004-11-12
CPC分类号： G11B5/1272 , G11B5/33 , G11B5/39
摘要： Disclosed is a CCP-CPP-GMR head assembly which has: a CCP-CPP-GMR head that includes at least a current control layer having as a microstructure a plurality of truncated cone electric conductors with axes the same as a current direction and an insulator filling between the plurality of truncated cone electric conductors, and in which a surface on which a larger-area basal plane of the plurality of truncated cone electric conductors is greater in number is a first surface of the current control layer and a surface of an opposite side of the first surface is a second surface of the current control layer; and a sense current source providing the CCP-CPP-GMR head with a sense current that flows from the second surface to the first surface, a magnetic recording/reproducing apparatus having such a head, and a specification method of an appropriate sense current direction of the CCP-CPP-GMR head.
摘要翻译： 公开了一种CCP-CPP-GMR头组件，其具有：CCP-CPP-GMR头，其至少包括具有作为微结构的电流控制层，多个具有与电流方向相同的轴的截头锥形电导体和绝缘体 多个截锥形电导体之间的填充，其中多个截锥形电导体的较大面积的基面在其上较大的表面是电流控制层的第一表面和相反的表面 第一表面的一侧是电流控制层的第二表面; 以及感测电流源，为CCP-CPP-GMR头提供从第二表面流向第一表面的感测电流，具有这种头的磁记录/再现装置，以及适当的感应电流方向的指定方法 CCP-CPP-GMR头。
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