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46 条记录 (耗时 0.037 秒)

    Disk drive thin-film inductive write head with pole tip structure having reduced susceptibility to corrosion
    41.
    发明申请
    Disk drive thin-film inductive write head with pole tip structure having reduced susceptibility to corrosion 失效
    具有极尖结构的磁盘驱动器薄膜感应写头具有降低的腐蚀敏感性

    公开(公告)号：US20060198048A1

    公开(公告)日：2006-09-07

    申请号：US11073267

    申请日：2005-03-04

    申请人： Eric Flint ,  Wen-Chien Hsiao ,  Yiping Hsiao ,  Michael Yang

    发明人： Eric Flint ,  Wen-Chien Hsiao ,  Yiping Hsiao ,  Michael Yang

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/31 ,  G11B5/313

    摘要： A disk drive thin-film write head structure has a pole tip structure with reduced susceptibility to corrosion. The write head has a first ferromagnetic pole tip that includes a pedestal pole layer and a capping layer on the pedestal pole layer. The capping layer has an extension and the write gap is located between the capping layer extension and the second pole tip. Substantially the entire thickness of the pedestal pole layer is formed of a lower-moment alloy and the capping layer is formed of a higher-moment alloy and is made thick enough to compensate for the lower-moment alloy in the pedestal pole layer. The pedestal pole layer may be a bilayer of two different alloys with the upper layer in the bilayer having a higher moment. The width of the pedestal pole layer is substantially reduced to reduce the pole tip area exposed. The reduced pole tip area and the increased use of lower-moment alloys enable a thinner protective film to be used to protect the pole tips from corrosion.

    摘要翻译： 磁盘驱动器薄膜写头结构具有磁极尖端结构，具有降低的腐蚀敏感性。 写头具有第一铁磁极端头，其包括基座极层和底座极层上的覆盖层。 封盖层具有延伸部，写入间隙位于封盖层延伸部和第二极端部之间。 基座极层的整个厚度基本上由较低的力矩合金形成，并且盖层由更高的力矩合金形成，并且被制成足够厚以补偿底座极层中的较小的力矩合金。 底座极层可以是两个不同合金的双层，双层中的上层具有较高的时间。 底座极层的宽度大大减小，以减小露出的极尖面积。 减小的极端面积和增加使用较低的力矩合金使得可以使用更薄的保护膜来保护极尖免受腐蚀。

    Method and apparatus for providing a self-pinned bias layer that extends beyond the ends of the free layer
    43.
    发明授权
    Method and apparatus for providing a self-pinned bias layer that extends beyond the ends of the free layer 失效
    用于提供延伸超出自由层的端部的自固定偏置层的方法和装置

    公开(公告)号：US07072154B2

    公开(公告)日：2006-07-04

    申请号：US10629529

    申请日：2003-07-29

    申请人： Hardayal Singh Gill ,  Wen-Chien Hsiao ,  Jih-Shiuan Luo

    发明人： Hardayal Singh Gill ,  Wen-Chien Hsiao ,  Jih-Shiuan Luo

    IPC分类号： G11B5/33 ,  G11B5/39

    CPC分类号： G11B5/3912 ,  G11B5/3932

    摘要： A method and apparatus for enhancing thermal stability, improving biasing and reducing damage from electrical surges in self-pinned abutted junction heads. The head includes a free layer having a first end and a second end defining a width selected to form a desired trackwidth and an extended self-pinned bias layer extending beyond the ends of the free layer, the self-pinned bias layer extending beyond the free layer increasing the volume of the extended self-pinned bias layer to provide greater thermal stability and stronger pinning of the free layer.

    摘要翻译： 一种用于增强热稳定性，改善偏压并减少自销接合接头中的电涌的损伤的方法和装置。 头包括自由层，其具有第一端和限定被选择以形成期望的轨道宽度的宽度的第二端和延伸超过自由层的端部的扩展的自固定偏置层，自固定偏置层延伸超过自由层 增加了扩展的自固定偏置层的体积，以提供更大的热稳定性和较强的自由层的钉扎。

    Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion
    46.
    发明申请
    Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion 失效
    磁头具有具有降低的电阻降低热突起的写入线圈结构

    公开(公告)号：US20050024764A1

    公开(公告)日：2005-02-03

    申请号：US10629060

    申请日：2003-07-29

    申请人： Wen-Chien Hsiao ,  Edward Lee ,  Vladimir Nikitin ,  Samuel Yuan

    发明人： Wen-Chien Hsiao ,  Edward Lee ,  Vladimir Nikitin ,  Samuel Yuan

    IPC分类号： G11B5/17 ,  G11B5/012 ,  G11B5/31 ,  G11B5/40

    CPC分类号： G11B5/3136 ,  G11B5/012 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/40

    摘要： Magnetic heads having write coil structures with reduced electrical resistances for reducing thermal protrusion are disclosed. In one illustrative example, a magnetic head includes a magnetic yoke; a write gap layer formed between upper and lower poles of the magnetic yoke; and a write coil having a plurality of coil layers. Each coil layer of the write coil extends continuously between the upper and the lower poles through a plane defined by the write gap layer. Preferably, the write coil is formed using a damascene process, such that each coil layer is wider than each coil separating layer. Such a structure provides for a relatively large amount of coil materials to be used, which reduces the coil's electrical resistance. This, in turn, reduces the heat generated by the write coils during operation. Further, either one or both of the lower and upper poles may include a horizontally laminated structure of alternating magnetic and non-magnetic dielectric layers to further reduce heating caused by eddy current losses. Since thermal protrusion is reduced, the fly height of magnetic head may be made relatively small with a reduced risk of head-to-disk crashes and disk scratches.

    摘要翻译： 公开了具有降低的电阻以减少热突起的具有写入线圈结构的磁头。 在一个说明性示例中，磁头包括磁轭; 形成在磁轭的上下极之间的写间隙层; 以及具有多个线圈层的写入线圈。 写入线圈的每个线圈层通过由写入间隙层限定的平面在上极和下极之间连续延伸。 优选地，写入线圈使用镶嵌工艺形成，使得每个线圈层比每个线圈分离层宽。 这种结构提供了相对大量的待使用的线圈材料，这降低了线圈的电阻。 这又减少了在操作期间由写入线圈产生的热量。 此外，下极和上极中的一个或两个可以包括交替的磁和非磁性介电层的水平层叠结构，以进一步减少由涡流损耗引起的加热。 由于热突起减少，所以磁头的飞行高度可以相对较小，同时降低了磁头与磁盘的碰撞和磁盘划痕的风险。