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    Magnetic head having a read element shield and substrate with matching coefficients of thermal expansion
    1.
    发明授权
    Magnetic head having a read element shield and substrate with matching coefficients of thermal expansion 有权
    磁头具有读取元件屏蔽和具有匹配热膨胀系数的衬底

    公开(公告)号：US06775108B2

    公开(公告)日：2004-08-10

    申请号：US10125750

    申请日：2002-04-18

    申请人： Mark T. Kief ,  Ladislav R. Pust ,  Venkateswara R. Inturi

    发明人： Mark T. Kief ,  Ladislav R. Pust ,  Venkateswara R. Inturi

    IPC分类号： G11B539

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3912 ,  G11B5/398 ,  G11B5/40 ,  G11B2005/3996

    摘要： A magnetic head for reading information from a magnetic medium is provided. The magnetic head includes a substrate, having a substrate thermal coefficient of expansion, and a read element positioned above the substrate. The head also includes a shield, positioned above the substrate and adjacent the read element, which has a shield thermal coefficient of expansion that substantially matches the substrate thermal coefficient of expansion. The shield absorbs stray magnetic fields from the magnetic medium, which emanate from stored data that is adjacent to a data element that is directly beneath and read by the magnetoresistive read element. This shield may also serve to provide electrical contact for the read element. The magnetic thermal coefficient of expansion and electrical properties of the shield may be suitably optimized through appropriate choice of component materials and structure.

    摘要翻译： 提供了用于从磁介质读取信息的磁头。 磁头包括具有衬底热膨胀系数的衬底和位于衬底上方的读取元件。 头部还包括位于衬底上方并与读取元件相邻的屏蔽件，该屏蔽件的屏蔽热膨胀系数基本上与衬底的热膨胀系数匹配。 屏蔽物吸收来自磁介质的杂散磁场，其从与直接在磁阻读取元件下面读取的数据元素相邻的存储数据产生。 该屏蔽还可用于为读取元件提供电接触。 可以通过适当选择部件材料和结构来适当地优化屏蔽的磁热膨胀系数和电性能。

    Read head shield having improved stability
    3.
    发明授权
    Read head shield having improved stability 有权
    读头保护罩具有改善的稳定性

    公开(公告)号：US06801409B2

    公开(公告)日：2004-10-05

    申请号：US09952725

    申请日：2001-09-14

    申请人： Richard P. Michel ,  Mark T. Kief ,  Dehua Han ,  Venkateswara R. Inturi ,  Vladyslav A. Vas'ko

    发明人： Richard P. Michel ,  Mark T. Kief ,  Dehua Han ,  Venkateswara R. Inturi ,  Vladyslav A. Vas'ko

    IPC分类号： G11B539

    CPC分类号： G11B5/3903 ,  G11B5/11 ,  G11B5/115 ,  G11B5/3109 ,  G11B5/3113 ,  G11B5/313 ,  Y10T29/49046

    摘要： A read head shield having improved stability includes a ferromagnetic (FM) layer and an anti-ferromagnetic (AFM) layer adjacent the FM layer. The FM layer has a patterned shape and a domain configuration that is defined by a plurality of local magnetic domains that are stabilized in accordance with the patterned shape. The AFM layer is annealed to imprint thereon the stabilized local magnetic domains of the FM layer. The AFM layer operates to increase the stability of the domain configuration of the FM layer thereby providing improved resistance to domain configuration shift caused by the application of a strong magnetic field.

    摘要翻译： 具有改进的稳定性的读头屏蔽包括邻近FM层的铁磁（FM）层和反铁磁（AFM）层。 FM层具有由根据图案形状稳定的多个局部磁畴限定的图案形状和畴结构。 对AFM层进行退火以在其上压印FM层的稳定的局部磁畴。 AFM层操作以增加FM层的畴结构的稳定性，从而提供由施加强磁场引起的对域配置位移的改进的阻力。

    MAGNETIC WRITE DEVICE WITH A CLADDED WRITE ASSIST ELEMENT
    6.
    发明申请
    MAGNETIC WRITE DEVICE WITH A CLADDED WRITE ASSIST ELEMENT 有权
    磁带写入装置，带有封装的写入元件

    公开(公告)号：US20110063756A1

    公开(公告)日：2011-03-17

    申请号：US12950642

    申请日：2010-11-19

    申请人： Eric S. Linville ,  Mark T. Kief

    发明人： Eric S. Linville ,  Mark T. Kief

    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 MAIN WRITE POLE
    7.
    发明申请
    MAGNETIC MAIN WRITE POLE 有权
    磁性主写字

    公开(公告)号：US20100328817A1

    公开(公告)日：2010-12-30

    申请号：US12491898

    申请日：2009-06-25

    申请人： Mark T. Kief ,  Kaizhong Gao ,  Venkateswara Rao Inturi

    发明人： Mark T. Kief ,  Kaizhong Gao ,  Venkateswara Rao Inturi

    IPC分类号： G11B5/127 ,  C25D5/34

    CPC分类号： G11B5/3116 ,  C23C14/14 ,  C23C14/225 ,  C25D5/022 ,  C25D5/12 ,  C25D5/14 ,  C25D7/001 ,  G11B5/1278 ,  G11B5/3163

    摘要： A magnetic writer includes a write pole configured such that the easy magnetic axis is parallel to the vertical length direction of the write pole tip and to the ABS of the recording media. The write pole tip can be a multilayer structure comprising alternating magnetic and nonmagnetic layers with a planar orientation substantially perpendicular to the ABS and with magnetic anisotropy parallel to the vertical length direction of the write pole tip. The alternating magnetic and nonmagnetic layers may be formed by electroplating on a conformal seedlayer in a trench, or by static off axis physical vapor deposition.

    摘要翻译： 磁性写入器包括写极，其被构造为使得易磁轴与记录介质的写极端和ABS的垂直长度方向平行。 写极端可以是包括交替磁性和非磁性层的多层结构，其平面取向基本上垂直于ABS并且具有平行于写入极尖的垂直长度方向的磁各向异性。 交替的磁性和非磁性层可以通过电镀在沟槽中的保形晶种层上，或通过静态离轴物理气相沉积形成。

    Patterned Magnetic Recording Media By Selective Anodic Removal Of An Element
    10.
    发明申请
    Patterned Magnetic Recording Media By Selective Anodic Removal Of An Element 有权
    图案磁记录介质通过选择性阳极去除元素

    公开(公告)号：US20100273026A1

    公开(公告)日：2010-10-28

    申请号：US12431705

    申请日：2009-04-28

    申请人： Steven C. Riemer ,  Ibro Tabakovic ,  Jie Gong ,  Hieu T. Lam ,  Mark T. Kief ,  Mark H. Ostrowski ,  Jiaoming Qiu

    发明人： Steven C. Riemer ,  Ibro Tabakovic ,  Jie Gong ,  Hieu T. Lam ,  Mark T. Kief ,  Mark H. Ostrowski ,  Jiaoming Qiu

    IPC分类号： G11B5/33 ,  C25F3/02

    CPC分类号： C25F3/02 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855

    摘要： A patterned magnetic recording media and method thereof is provided. A recording layer comprises a continuous surface of more-noble elements and less-noble elements, such as CoXYZ, wherein X can be Pt, Pd, Ru, Rh, Ir, Os, or Au, wherein Y can be null or Cr, and wherein Z can be null, Cu, Ta, Ti, O, B, Ag, or TiO2. The recording layer is masked, shielding areas for recording domains and exposing areas between the recording domains. A voltage bias establishes the substrate as an anode in the presence of Pt cathode, in an electrolyte bath. Ions of the less-noble element are anodically removed predominantly from the exposed areas of the recording layer for a controlled time. The controlled time minimizes oxidation of the nobler element and reduces undercutting of the recording domains. The article produced can have separating areas with surfaces substantially formed of the more-noble element.

    摘要翻译： 提供了一种图案化的磁记录介质及其方法。 记录层包括更贵族元素和较低贵族元素如CoXYZ的连续表面，其中X可以是Pt，Pd，Ru，Rh，Ir，Os或Au，其中Y可以是无效或Cr，以及 其中Z可以为零，Cu，Ta，Ti，O，B，Ag或TiO2。 屏蔽记录层，用于记录域的屏蔽区域和在记录域之间的曝光区域。 在Pt阴极的存在下，在电解质浴中，电压偏压建立了作为阳极的衬底。 较低贵族元素的离子主要从记录层的曝光区域阳极移除一段时间。 受控时间最小化了贵族元素的氧化并减少了记录域的底切。 所制造的制品可以具有基本上由更贵族元素形成的表面的分离区域。