Biasing for tri-layer magnetoresistive sensors
    1.
    发明授权
    Biasing for tri-layer magnetoresistive sensors 有权
    三层磁阻传感器的偏置

    公开(公告)号:US07177122B2

    公开(公告)日:2007-02-13

    申请号:US10694483

    申请日:2003-10-27

    IPC分类号: G11B5/33

    摘要: A biasing system for a tri-layer reader stack magnetoresistive sensor is disclosed. The tri-layer reader stack includes a first ferromagnetic free layer, a second ferromagnetic free layer, and a magnetoresistive layer between the first and second ferromagnetic free layers. The free layers are positioned in the tri-layer reader stack such that quiescent state magnetizations of the free layers are antiparallel. A biasing layer is positioned with regard to the tri-layer reader stack, typically separated from the tri-layer reader stack by a nonmagnetic spacer layer. A biasing means is positioned such that a magnetization of the biasing layer is perpendicular to the quiescent state magnetizations of the free layers. This biasing results in the free layers having biased magnetizations directed substantially orthogonal with respect to each other.

    摘要翻译: 公开了一种用于三层读取器堆叠磁阻传感器的偏置系统。 三层读取器堆叠包括第一铁磁自由层,第二铁磁自由层和在第一和第二铁磁性自由层之间的磁阻层。 自由层位于三层读取器堆叠中,使得自由层的静态状态磁化反平行。 偏置层相对于三层读取器堆叠定位,通常通过非磁性间隔层与三层读取器堆叠分离。 偏置装置被定位成使得偏置层的磁化垂直于自由层的静态状态磁化。 该偏置导致自由层具有相对于彼此基本上正交的偏磁化。

    Magnetic Recording Head Having a Pole Tip Shield
    2.
    发明申请
    Magnetic Recording Head Having a Pole Tip Shield 有权
    具有杆尖屏蔽的磁记录头

    公开(公告)号:US20140063657A1

    公开(公告)日:2014-03-06

    申请号:US13823672

    申请日:2010-09-15

    IPC分类号: G11B5/193 G11B5/187

    摘要: A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.

    摘要翻译: 公开了一种包括极端屏蔽的写入元件。 在所公开的实施例中,例如,极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分,以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。 在另一个实施例中,极尖屏蔽包括侧面屏蔽部分,其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。 在所示的实施例中,侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。 凹入部分具有圆形的缩进表面轮廓,其形成圆顶轮廓,用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。

    Magnetic write device with a cladded write assist element
    3.
    发明授权
    Magnetic write device with a cladded write assist element 有权
    具有包层写写辅助元件的磁写装置

    公开(公告)号:US08582236B2

    公开(公告)日:2013-11-12

    申请号:US12950642

    申请日:2010-11-19

    IPC分类号: G11B5/127

    CPC分类号: G11B5/3123

    摘要: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one surface of the conductor.

    摘要翻译: 磁性装置包括具有写入元件尖端的写元件和与写入元件尖端的边缘相邻的导体,用于承载电流以产生增强写入元件产生的写入场的辅助场。 包层材料设置在导体的至少一个表面上。

    Magnetic write device with a cladded write assist element
    4.
    发明申请
    Magnetic write device with a cladded write assist element 有权
    具有包层写写辅助元件的磁写装置

    公开(公告)号:US20080316643A1

    公开(公告)日:2008-12-25

    申请号:US11820689

    申请日:2007-06-20

    IPC分类号: G11B5/127

    CPC分类号: G11B5/3123

    摘要: A magnetic device includes a write element having a write element tip and a conductor adjacent an edge of the write element tip for carrying current to generate an assist field that augments a write field generated by the write element. A cladding material is disposed on at least one surface of the conductor.

    摘要翻译: 磁性装置包括具有写入元件尖端的写入元件和与写入元件尖端的边缘相邻的导体,用于承载电流以产生增强由写入元件产生的写入场的辅助场。 包层材料设置在导体的至少一个表面上。

    Wire and wire lead designs for a wire-assisted magnetic write device
    5.
    发明授权
    Wire and wire lead designs for a wire-assisted magnetic write device 有权
    线辅助磁性写入装置的线和导线设计

    公开(公告)号:US09159339B2

    公开(公告)日:2015-10-13

    申请号:US11925012

    申请日:2007-10-26

    摘要: A magnetic device includes a write element having a write element tip that defines a medium confronting surface. The write element is operable to generate a first field at the medium confronting surface. A conductor is proximate the write element tip and first and second conductive leads are connected to the conductor and configured to deliver a current to the conductor to generate a second field that augments the first field. First and second side elements are disposed on opposite sides of the write element tip in a cross-track direction at the medium confronting surface. At least a portion of the first conductive lead is disposed adjacent the first side element on a side opposite the medium confronting surface, and at least a portion of the second conductive lead is disposed adjacent the second side element on a side opposite the medium confronting surface.

    摘要翻译: 磁性装置包括具有限定介质面对表面的写入元件尖端的写入元件。 写入元件可操作以在介质面对面产生第一场。 导体靠近写入元件尖端,并且第一和第二导电引线连接到导体并且被配置为将电流传送到导体以产生增强第一场的第二场。 第一和第二侧面元件在介质面对面处沿着横向方向设置在写入元件尖端的相对侧上。 第一导电引线的至少一部分在与介质相对表面相对的一侧邻近第一侧元件设置,并且第二导电引线的至少一部分邻近第二侧元件设置在与介质相对表面相对的一侧 。

    Magnetic recording head with magnetic wall angle
    6.
    发明授权
    Magnetic recording head with magnetic wall angle 有权
    带磁壁角度的磁记录头

    公开(公告)号:US08279562B2

    公开(公告)日:2012-10-02

    申请号:US12404579

    申请日:2009-03-16

    IPC分类号: G11B5/33

    摘要: A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally “U” shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.

    摘要翻译: 公开了一种用于记录头的写入元件的极头护罩。 极尖护罩在前缘方向上与极尖间隔开,以提供磁壁角度,以减少ATI或相邻轨道擦除,以补偿头部的歪斜角度。 在图示的实施例中,极端护罩包括侧部。 在所示实施例中,极端屏蔽件通常为U形,并且极端护罩的侧部分包括不同的厚度或宽度尺寸。 在示出的实施例中,极尖屏蔽为矩形极尖提供磁壁角度。 本申请中公开的实施例包括通过非磁性间隙部分沿着头部的空气轴承表面与极端护罩分离的后缘护罩。

    Wire-assisted magnetic write device with a gapped trailing shield
    7.
    发明授权
    Wire-assisted magnetic write device with a gapped trailing shield 失效
    具有间隙后盾的线辅助磁写装置

    公开(公告)号:US07983002B2

    公开(公告)日:2011-07-19

    申请号:US11823026

    申请日:2007-06-26

    IPC分类号: G11B5/127

    摘要: A magnetic device includes a write element having a write element tip and a first return element magnetically coupled to the write element on a trailing side of the write element. A conductor is positioned proximate to an edge of the write element tip and is configured to generate an assist field that augments a write field generated by the write element. A shield that includes at least one gap extends from the first return element toward the write element tip.

    摘要翻译: 磁性装置包括具有写入元件尖端的写入元件和与写入元件的后侧上的写入元件磁耦合的第一返回元件。 导体位于写入元件尖端的边缘附近,并被配置为产生增强由写入元件产生的写入场的辅助场。 包括至少一个间隙的屏蔽件从第一返回元件朝向写元件尖端延伸。

    MAGNETIC RECORDING HEAD WITH MAGNETIC WALL ANGLE
    8.
    发明申请
    MAGNETIC RECORDING HEAD WITH MAGNETIC WALL ANGLE 有权
    带磁性壁角的磁记录头

    公开(公告)号:US20100232062A1

    公开(公告)日:2010-09-16

    申请号:US12404579

    申请日:2009-03-16

    IPC分类号: G11B5/10 G11B5/127

    摘要: A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the head. In illustrated embodiments, the pole tip shield includes side portions. In illustrated embodiments the pole tip shield is generally “U” shaped and side portions of the pole tip shield include different thickness or width dimensions. In illustrated embodiments, the pole tip shield provides a magnetic wall angle for a rectangular shaped pole tip. Embodiments disclosed in the application include a trailing edge shield separated from the pole tip shield along an air bearing surface of the head by a non-magnetic gap portion.

    摘要翻译: 公开了一种用于记录头的写入元件的极头护罩。 极尖护罩在前缘方向上与极尖间隔开,以提供磁壁角度,以减少ATI或相邻轨道擦除,以补偿头部的歪斜角度。 在图示的实施例中,极端护罩包括侧部。 在示出的实施例中,极端屏蔽件通常为“U”形,并且极尖屏蔽件的侧部分包括不同的厚度或宽度尺寸。 在示出的实施例中,极尖屏蔽为矩形极尖提供磁壁角度。 本申请中公开的实施例包括通过非磁性间隙部分沿着头部的空气轴承表面与极端护罩分离的后缘护罩。