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    Side reading reduced GMR for high track density
    1.
    发明授权
    Side reading reduced GMR for high track density 失效
    侧视读数降低了高磁轨密度的GMR

    公开(公告)号：US07408748B2

    公开(公告)日：2008-08-05

    申请号：US11716869

    申请日：2007-03-12

    申请人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    发明人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  C21D1/04 ,  G11B5/3903 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3268 ,  H01F41/302 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability and can cause amplitude loss and side reading. This problem has been overcome by placing an additional layer of soft magnetic material on the conductive layer. The added layer prevents flux leakage into the gap region. A non-magnetic layer must be included to prevent exchange coupling to nearby magnetic layers. In at least one embodiment the conductive leads are used to accomplish this. A process for manufacturing the device is also described.

    摘要翻译： 随着磁盘驱动器的磁道密度要求越来越高，GMR器件已被推到更窄的磁道宽度以匹配驱动器宽度的磁道间距。 较窄的轨道宽度会降低稳定性，并可能导致振幅损失和侧面读数。 通过在导电层上放置附加的软磁性材料层已经克服了这个问题。 添加的层防止漏电流到间隙区域。 必须包括非磁性层以防止交换耦合到附近的磁性层。 在至少一个实施例中，导电引线用于实现这一点。 还描述了用于制造该装置的方法。

    Process of manufacturing a side reading reduced GMR for high track density
    2.
    发明授权
    Process of manufacturing a side reading reduced GMR for high track density 失效
    制造侧读的过程降低了高磁轨密度的GMR

    公开(公告)号：US06760966B2

    公开(公告)日：2004-07-13

    申请号：US10135097

    申请日：2002-04-30

    申请人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    发明人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    IPC分类号： G11B5147

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  C21D1/04 ,  G11B5/3903 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3268 ,  H01F41/302 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability, cause amplitude loss, due to the field originating from the hard bias structure, and side reading. This problem has been overcome in a process of manufacturing a device by adding an additional layer of soft magnetic material above the hard bias layers. The added layer provides flux closure to the hard bias layers thereby preventing flux leakage into the gap region. A non-magnetic layer must be included to prevent exchange coupling to the hard bias layers. In at least one embodiment the conductive leads are used to accomplish this.

    摘要翻译： 随着磁盘驱动器的磁道密度要求越来越高，GMR器件已被推到更窄的磁道宽度以匹配驱动器宽度的磁道间距。 较窄的轨道宽度会降低稳定性，导致振幅损失，这是由于源自硬偏置结构的场和侧读。 在通过在硬偏压层上方添加附加的软磁性材料层来制造器件的过程已经克服了这个问题。 添加的层向硬偏置层提供磁通闭合，从而防止磁通量泄漏到间隙区域中。 必须包括非磁性层以防止与硬偏置层的交换耦合。 在至少一个实施例中，导电引线用于实现这一点。

    Side reading reduced GMR for high track density
    3.
    发明授权
    Side reading reduced GMR for high track density 失效
    侧视读数降低了高磁轨密度的GMR

    公开(公告)号：US07599158B2

    公开(公告)日：2009-10-06

    申请号：US11716945

    申请日：2007-03-12

    申请人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    发明人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  C21D1/04 ,  G11B5/3903 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3268 ,  H01F41/302 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability, cause amplitude loss, due to the field originating from the hard bias structure, and side reading. This problem has been overcome by adding an additional layer of soft magnetic material above the hard bias layers. The added layer provides flux closure to the hard bias layers thereby preventing flux leakage into the gap region. A non-magnetic layer must be included to prevent exchange coupling to the hard bias layers. In at least one embodiment the conductive leads are used to accomplish this. A process for manufacturing the device is also described.

    摘要翻译： 随着磁盘驱动器的磁道密度要求越来越高，GMR器件已被推到更窄的磁道宽度以匹配驱动器宽度的磁道间距。 较窄的轨道宽度会降低稳定性，导致振幅损失，这是由于源自硬偏置结构的场和侧读。 通过在硬偏压层上方添加一层附加的软磁材料已经克服了这个问题。 添加的层向硬偏置层提供磁通闭合，从而防止磁通量泄漏到间隙区域中。 必须包括非磁性层以防止与硬偏置层的交换耦合。 在至少一个实施例中，导电引线用于实现这一点。 还描述了用于制造该装置的方法。

    Side reading reduced GMR for high track density
    4.
    发明授权
    Side reading reduced GMR for high track density 失效
    侧视读数降低了高磁轨密度的GMR

    公开(公告)号：US07203039B2

    公开(公告)日：2007-04-10

    申请号：US10856181

    申请日：2004-05-28

    申请人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    发明人： Po Kang Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    IPC分类号： G11B5/33 ,  G11B5/127

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  C21D1/04 ,  G11B5/3903 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3268 ,  H01F41/302 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability, cause amplitude loss, due to the field originating from the hard bias structure, and side reading. This problem has been overcome by adding an additional layer of soft magnetic material above the hard bias layers. The added layer provides flux closure to the hard bias layers thereby preventing flux leakage into the gap region. A non-magnetic layer must be included to prevent exchange coupling to the hard bias layers. In at least one embodiment the conductive leads are used to accomplish this.

    摘要翻译： 随着磁盘驱动器的磁道密度要求越来越高，GMR器件已被推到更窄的磁道宽度以匹配驱动器宽度的磁道间距。 较窄的轨道宽度会降低稳定性，导致振幅损失，这是由于源自硬偏置结构的场和侧读。 通过在硬偏压层上方添加一层附加的软磁材料已经克服了这个问题。 添加的层向硬偏置层提供磁通闭合，从而防止磁通量泄漏到间隙区域中。 必须包括非磁性层以防止与硬偏置层的交换耦合。 在至少一个实施例中，导电引线用于实现这一点。

    Side reading reduced GMR for high track density
    6.
    发明申请
    Side reading reduced GMR for high track density 失效
    侧视读数降低了高磁轨密度的GMR

    公开(公告)号：US20070171572A1

    公开(公告)日：2007-07-26

    申请号：US11716945

    申请日：2007-03-12

    申请人： Po Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    发明人： Po Wang ,  Moris Dovek ,  Jibin Geng ,  Tai Min

    IPC分类号： G11B5/127 ,  G11B5/33

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  C21D1/04 ,  G11B5/3903 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3268 ,  H01F41/302 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability, cause amplitude loss, due to the field originating from the hard bias structure, and side reading. This problem has been overcome by adding an additional layer of soft magnetic material above the hard bias layers. The added layer provides flux closure to the hard bias layers thereby preventing flux leakage into the gap region. A non-magnetic layer must be included to prevent exchange coupling to the hard bias layers. In at least one embodiment the conductive leads are used to accomplish this. A process for manufacturing the device is also described.

    摘要翻译： 随着磁盘驱动器的磁道密度要求越来越高，GMR器件已被推到更窄的磁道宽度以匹配驱动器宽度的磁道间距。 较窄的轨道宽度会降低稳定性，导致振幅损失，这是由于源自硬偏置结构的场和侧读。 通过在硬偏压层上方添加一层附加的软磁材料已经克服了这个问题。 添加的层向硬偏置层提供磁通闭合，从而防止磁通量泄漏到间隙区域中。 必须包括非磁性层以防止与硬偏置层的交换耦合。 在至少一个实施例中，导电引线用于实现这一点。 还描述了用于制造该装置的方法。