Perpendicular magnetic recording media with thin soft magnetic underlayers and recording systems comprising same
    24.
    发明授权
    Perpendicular magnetic recording media with thin soft magnetic underlayers and recording systems comprising same 有权
    具有薄软磁底层的垂直磁记录介质和包含该磁性底层的记录系统

    公开(公告)号:US08465854B2

    公开(公告)日:2013-06-18

    申请号:US11606998

    申请日:2006-12-01

    IPC分类号: G11B5/65

    摘要: A perpendicular magnetic recording medium comprises a non-magnetic substrate having a surface; and a plurality of overlying thin film layers forming a layer stack on the substrate surface, the layer stack including a magnetically hard perpendicular magnetic recording layer structure and an underlying soft magnetic underlayer (SUL), the SUL having a thickness of up to about 100 Å. Also disclosed is a data/information recording, storage, and retrieval system comprising the perpendicular magnetic recording medium and a single-pole magnetic transducer head including main and auxiliary poles positioned in spaced adjacency to an upper surface of the layer stack, the single-pole transducer head comprising a front shield adjacent the main pole.

    摘要翻译: 垂直磁记录介质包括具有表面的非磁性基板; 以及在衬底表面上形成层堆叠的多个上覆薄膜层,所述层堆叠包括磁性硬垂直磁记录层结构和下面的软磁性底层(SUL),所述SUL具有高达约100埃的厚度 。 还公开了一种包括垂直磁记录介质和单极磁换能器头的数据/信息记录,存储和检索系统,其包括与层堆叠的上表面间隔开的主副磁极,单极 换能器头包括邻近主极的前屏蔽。

    Magnetic recording head with magnetic wall angle
    25.
    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。

    Devices including a write pole tip with a convex shape
    26.
    发明授权
    Devices including a write pole tip with a convex shape 有权
    包括具有凸形形状的写极端的装置

    公开(公告)号:US08233233B1

    公开(公告)日:2012-07-31

    申请号:US13173854

    申请日:2011-06-30

    IPC分类号: G11B5/147

    CPC分类号: G11B5/3146 G11B5/3116

    摘要: in certain embodiments, an apparatus includes a write pole tip having a top side that has a monotonically decreasing slope that forms a convex profile between a write pole paddle and an air bearing surface.In certain embodiments, an apparatus includes a write pole tip having a first and second top bevel. The first top bevel is at an angle greater than the second top bevel with respect to a plane perpendicular to an air bearing surface of the write pole tip.

    摘要翻译: 在某些实施例中,一种装置包括具有顶侧的写极尖,该顶极具有单调减小的斜率,在写极性桨叶和空气支承表面之间形成凸形轮廓。 在某些实施例中,装置包括具有第一和第二顶部斜面的写入磁极尖端。 第一顶部斜面相对于垂直于写入磁极尖端的空气轴承表面的平面成大于第二顶部斜面的角度。

    DOUBLE SHELL WRITERS
    27.
    发明申请
    DOUBLE SHELL WRITERS 有权
    双壳笔记本

    公开(公告)号:US20120147503A1

    公开(公告)日:2012-06-14

    申请号:US12966453

    申请日:2010-12-13

    IPC分类号: G11B5/127 H01F3/00

    摘要: An apparatus illustratively includes a return pole (RP) and a shield. The RP has a first RP magnetic layer, a second RP magnetic layer, and a RP non-magnetic layer. The RP non-magnetic layer separates and magnetically decouples the RP first and second magnetic layers. The shield has a first shield magnetic layer, a second shield magnetic layer, and a shield non-magnetic layer. The shield non-magnetic layer separates and magnetically decouples the shield first and second magnetic layers. A method illustratively includes generating magnetic flux and collecting the magnetic flux through an inner magnetic shell.

    摘要翻译: 装置示例性地包括返回杆(RP)和护罩。 RP具有第一RP磁性层,第二RP磁性层和RP非磁性层。 RP非磁性层分离并使RP第一和第二磁性层磁耦合。 屏蔽具有第一屏蔽磁性层,第二屏蔽磁性层和屏蔽非磁性层。 屏蔽非磁性层分离并磁屏蔽第一和第二磁性层。 一种示例性的方法包括产生磁通量并收集通过内部磁性壳体的磁通量。

    Self-aligned perpendicular writer pole and front shield
    28.
    发明授权
    Self-aligned perpendicular writer pole and front shield 有权
    自对准垂直笔杆和前屏蔽

    公开(公告)号:US08089724B2

    公开(公告)日:2012-01-03

    申请号:US12123288

    申请日:2008-05-19

    IPC分类号: G11B5/127

    摘要: A write pole structure includes a write pole having a tip region. A shield structure is spaced from the write pole by a gap at the tip region. The shield structure includes a front shield and a spacer layer on the back of the front shield. A yoke is formed on the write pole, and an end of the yoke is aligned with the back end of the spacer layer.

    摘要翻译: 写极结构包括具有尖端区域的写入极。 屏蔽结构通过尖端区域处的间隙与写入极间隔开。 屏蔽结构包括在前屏蔽背面上的前屏蔽和间隔层。 磁轭形成在写极上,磁轭的一端与间隔层的后端对准。

    MAGNETIC RECORDING HEAD WITH MAGNETIC WALL ANGLE
    29.
    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。