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18 条记录 (耗时 0.03 秒)

    Thermal compensation for head protrusion in a magnetic drive
    6.
    发明授权
    Thermal compensation for head protrusion in a magnetic drive 有权
    在磁力驱动器中头部突出的热补偿

    公开(公告)号：US06842308B1

    公开(公告)日：2005-01-11

    申请号：US09845619

    申请日：2001-04-30

    申请人： Ladislav R. Pust ,  Youping Mei ,  Sunita Gangopadhyay ,  Jumna P. Ramdular ,  Mallika Kamarajugadda

    发明人： Ladislav R. Pust ,  Youping Mei ,  Sunita Gangopadhyay ,  Jumna P. Ramdular ,  Mallika Kamarajugadda

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/3136

    摘要： A head for a magnetic drive that includes a substrate with a thermal expansion rate CTE1. A transducer in the head has a bond to the substrate and has a transducer thermal expansion rate CTE2 that is greater than CTE1. A restraint layer in the substrate has a bond to one side of the transducer and has a first restraint layer thermal expansion rate CTE3 that is lower than CTE1. The restraint layer restrains protrusion of the transducer beyond the substrate at higher operating temperatures.

    摘要翻译： 一种用于磁驱动器的磁头，其包括具有热膨胀率CTE1的基板。 头部中的换能器具有与基底的结合，并且具有大于CTE1的换能器热膨胀率CTE2。 衬底中的约束层具有与换能器的一侧的结合，并且具有低于CTE1的第一约束层热膨胀率CTE3。 限制层在更高的工作温度下限制了换能器超出基板的突出。

    Wire-assisted magnetic write device with phase shifted current
    7.
    发明授权
    Wire-assisted magnetic write device with phase shifted current 有权
    具有相移电流的线辅助磁写装置

    公开(公告)号：US08098455B2

    公开(公告)日：2012-01-17

    申请号：US11823432

    申请日：2007-06-27

    申请人： Stefan A. Ionescu ,  Ladislav R. Pust ,  Michael T. Johnson ,  Nurul Amin

    发明人： Stefan A. Ionescu ,  Ladislav R. Pust ,  Michael T. Johnson ,  Nurul Amin

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/02 ,  G11B5/3123 ,  G11B5/3133 ,  G11B2005/0002

    摘要： A magnetic device includes a write element having a write element tip and a conductive coil for carrying a current to induce a first field from the write element. A conductor proximate the write element tip carries the current to generate a second field that augments the first field. A driver provides the current to the conductive coil and the conductor, and a circuit phase shifts the current through the conductor relative to the current through the conductive coil.

    摘要翻译： 磁性装置包括具有写入元件尖端和用于承载电流以从写入元件引起第一场的导电线圈的写入元件。 靠近写入元件尖端的导体承载电流以产生增加第一场的第二场。 驱动器向导电线圈和导体提供电流，并且电路相对于通过导电线圈的电流使电流通过导体。

    Magnetic head having a read element shield and substrate with matching coefficients of thermal expansion
    8.
    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。

    Transducing head having a reduced thermal pole tip recession
    9.
    发明授权
    Transducing head having a reduced thermal pole tip recession 有权
    具有降低的热极尖端衰退的转换头

    公开(公告)号：US06661605B1

    公开(公告)日：2003-12-09

    申请号：US09839345

    申请日：2001-04-20

    申请人： Ladislav R. Pust ,  Edward Murdock

    发明人： Ladislav R. Pust ,  Edward Murdock

    IPC分类号： G11B539

    CPC分类号： G11B5/3103 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3133

    摘要： A magnetic head having an air bearing surface, a substrate, a basecoat, a data transducer and a plurality of insulating layers. The basecoat is positioned upon the substrate. The data transducer, which is positioned upon the basecoat adjacent the air bearing surface of the magnetic head, includes a plurality of metallic layers. The plurality of insulating layers are positioned upon the basecoat adjacent the data transducer opposite the air bearing surface of the data transducer. At least one insulating layer of the plurality of insulating layers is substantially coplanar to at least one of the plurality of metallic layers. A portion of the insulating layer is formed of a material having a coefficient of thermal expansion less than a coefficient of thermal expansion of the material forming the substrate.

    摘要翻译： 具有空气轴承表面的磁头，基板，底涂层，数据传感器和多个绝缘层。 底漆被定位在基材上。 位于靠近磁头的空气轴承表面的底涂层上的数据传感器包括多个金属层。 多个绝缘层位于与数据传感器的空气轴承表面相对的数据传感器附近的底涂层上。 多个绝缘层中的至少一个绝缘层基本上与多个金属层中的至少一个共面。 绝缘层的一部分由热膨胀系数小于形成基板的材料的热膨胀系数的材料形成。

    Wire-assisted magnetic write device with a gapped trailing shield
    10.
    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

    申请人： Ladislav R. Pust ,  Eric S. Linville

    发明人： Ladislav R. Pust ,  Eric S. Linville

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3123 ,  G11B5/02 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3133 ,  G11B5/3146 ,  G11B2005/0002

    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。