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    Method and system for providing a magnetic transducer having an improved read sensor synthetic antiferromagnet
    1.
    发明授权
    Method and system for providing a magnetic transducer having an improved read sensor synthetic antiferromagnet 有权
    用于提供具有改进的读取传感器合成反铁磁体的磁换能器的方法和系统

    公开(公告)号：US08116043B2

    公开(公告)日：2012-02-14

    申请号：US12634589

    申请日：2009-12-09

    申请人： Qunwen Leng ,  Jian X. Shen ,  Feng Liu ,  Geoffrey W. Anderson

    发明人： Qunwen Leng ,  Jian X. Shen ,  Feng Liu ,  Geoffrey W. Anderson

    IPC分类号： G11B5/39

    CPC分类号： G01R33/098 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T428/1121

    摘要： A method and system for providing a magnetic structure in magnetic transducer is described. The method and system include providing a pinning layer, a synthetic antiferromagnetic (SAF) adjacent to the pinning layer, a nonmagnetic layer, and a sensor layer. The SAF resides between the nonmagnetic and pinning layers. The nonmagnetic layer is between the SAF and the sensor layer. The SAF includes a pinned layer, a reference layer, and a nonmagnetic spacer layer between the pinned and reference layers. The pinned layer is magnetically coupled with the reference layer and includes sublayers. A first sublayer has a first blocking temperature distribution (TBD) and a first exchange energy. A second sublayer has a second TBD and a second exchange energy. The first sublayer is between the pinning layer and second sublayer. The first TBD is greater than the second TBD. The first exchange energy is less than the second exchange energy.

    摘要翻译： 描述了一种用于在磁换能器中提供磁结构的方法和系统。 该方法和系统包括提供钉扎层，邻近钉扎层的合成反铁磁（SAF），非磁性层和传感器层。 SAF位于非磁性和钉扎层之间。 非磁性层位于SAF和传感器层之间。 SAF在被钉扎层和参考层之间包括钉扎层，参考层和非磁性间隔层。 被钉扎层与参考层磁耦合并且包括子层。 第一子层具有第一阻挡温度分布（TBD）和第一交换能。 第二子层具有第二TBD和第二交换能。 第一子层位于钉扎层和第二子层之间。 第一个TBD大于第二个TBD。 第一交换能量小于第二交换能量。

    Method and system for providing an antiferromagnetically coupled writer
    5.
    发明授权
    Method and system for providing an antiferromagnetically coupled writer 有权
    提供反铁磁耦合作者的方法和系统

    公开(公告)号：US08441756B1

    公开(公告)日：2013-05-14

    申请号：US12970423

    申请日：2010-12-16

    申请人： Ming Sun ,  Dehua Han ,  Jose A. Medina ,  Ming Jiang ,  Ying Hong ,  Feng Liu ,  Jian X. Shen

    发明人： Ming Sun ,  Dehua Han ,  Jose A. Medina ,  Ming Jiang ,  Ying Hong ,  Feng Liu ,  Jian X. Shen

    IPC分类号： G11B5/39

    CPC分类号： G11B5/187 ,  G11B5/3116 ,  G11B5/3163

    摘要： A method and system for fabricating a magnetic transducer are described. The magnetic transducer includes a pole and a nonmagnetic intermediate layer adjacent to the pole. The pole has a paddle and a pole tip including a plurality of sidewalls. The pole includes a first magnetic pole layer, at least one antiferromagnetic coupling (AFC) structure on the first magnetic pole layer, and a second magnetic pole layer on the AFC structure(s). At least a portion of the first magnetic pole layer resides on the sidewalls of the pole tip. The paddle has a paddle width in a track width direction. The pole tip has a pole tip width in a track width direction that is less than the paddle width.

    摘要翻译： 描述了用于制造磁换能器的方法和系统。 磁换能器包括极和邻近极的非磁性中间层。 极具有桨和包括多个侧壁的极尖。 所述极包括第一磁极层，在所述第一磁极层上的至少一个反铁磁耦​​合（AFC）结构和所述AFC结构上的第二磁极层。 第一磁极层的至少一部分位于极尖的侧壁上。 桨叶在轨道宽度方向上具有桨叶宽度。 极尖具有小于桨宽度的轨道宽度方向上的极尖宽度。

    METHOD AND SYSTEM FOR PROVIDING A MAGNETIC TRANSDUCER HAVING AN IMPROVED READ SENSOR
    6.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING A MAGNETIC TRANSDUCER HAVING AN IMPROVED READ SENSOR 有权
    用于提供具有改进的读取传感器的磁性传感器的方法和系统

    公开(公告)号：US20110135961A1

    公开(公告)日：2011-06-09

    申请号：US12634589

    申请日：2009-12-09

    申请人： QUNWEN LENG ,  JIAN X. SHEN ,  FENG LIU ,  GEOFFREY W. ANDERSON

    发明人： QUNWEN LENG ,  JIAN X. SHEN ,  FENG LIU ,  GEOFFREY W. ANDERSON

    IPC分类号： G11B5/39

    CPC分类号： G01R33/098 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T428/1121

    摘要： A method and system for providing a magnetic structure in magnetic transducer is described. The method and system include providing a pinning layer, a synthetic antiferromagnetic (SAF) adjacent to the pinning layer, a nonmagnetic layer, and a sensor layer. The SAF resides between the nonmagnetic and pinning layers. The nonmagnetic layer is between the SAF and the sensor layer. The SAF includes a pinned layer, a reference layer, and a nonmagnetic spacer layer between the pinned and reference layers. The pinned layer is magnetically coupled with the reference layer and includes sublayers. A first sublayer has a first blocking temperature distribution (TBD) and a first exchange energy. A second sublayer has a second TBD and a second exchange energy. The first sublayer is between the pinning layer and second sublayer. The first TBD is greater than the second TBD. The first exchange energy is less than the second exchange energy.

    摘要翻译： 描述了一种用于在磁换能器中提供磁结构的方法和系统。 该方法和系统包括提供钉扎层，邻近钉扎层的合成反铁磁（SAF），非磁性层和传感器层。 SAF位于非磁性和钉扎层之间。 非磁性层位于SAF和传感器层之间。 SAF在被钉扎层和参考层之间包括钉扎层，参考层和非磁性间隔层。 被钉扎层与参考层磁耦合并且包括子层。 第一子层具有第一阻挡温度分布（TBD）和第一交换能。 第二子层具有第二TBD和第二交换能。 第一子层位于钉扎层和第二子层之间。 第一个TBD大于第二个TBD。 第一交换能量小于第二交换能量。