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    DUAL POLARITY BIAS FOR PROLONGING THE LIFE OF A HEATING ELEMENT IN MAGNETIC DATA STORAGE DEVICES
    2.
    发明申请
    DUAL POLARITY BIAS FOR PROLONGING THE LIFE OF A HEATING ELEMENT IN MAGNETIC DATA STORAGE DEVICES 有权
    用于在磁数据存储设备中延长加热元件寿命的双极化偏差

    公开(公告)号：US20070268624A1

    公开(公告)日：2007-11-22

    申请号：US11439296

    申请日：2006-05-22

    申请人： Jih-Shiuan Luo ,  Samuel Yuan

    发明人： Jih-Shiuan Luo ,  Samuel Yuan

    IPC分类号： G11B5/147

    CPC分类号： G11B5/314 ,  G11B5/6064

    摘要： A magnetic read/write head having a heating element to induce a desired amount of thermal protrusion in the read and write elements to control the fly height of the read and write elements over a magnetic medium. The heating element is connected with circuitry that provides an electrical bias (voltage or current) that switches polarity in order to prevent electromigration, thereby greatly increasing the life of the heating element. The polarity of the heating element can be switched upon the occurrence of a predetermined event such as between read or write events or upon activating deactivating the disk drive device or could be performed at regular, predetermined time intervals. The dual polarity bias could also be provided by applying an AC bias to the heating element.

    摘要翻译： 一种具有加热元件的磁读/写头，以在读和写元件中引起期望量的热突起，以通过磁介质控制读和写元件的飞行高度。 加热元件与电路连接，该电路提供切换极性的电偏压（电压或电流），以防止电迁移，从而大大增加了加热元件的寿命。 可以在诸如读取或写入事件之间的预定事件（例如在读取或写入事件之间）或者激活停用磁盘驱动器装置时进行加热元件的极性切换，或者可以以规定的预定时间间隔执行加热元件的极性。 也可以通过向加热元件施加AC偏压来提供双极性偏置。

    METHOD AND APPARATUS FOR OPTIMIZING RECORD QUALITY WITH VARYING TRACK AND LINEAR DENSITY BY ALLOWING OVERLAPPING DATA TRACKS
    3.
    发明申请
    METHOD AND APPARATUS FOR OPTIMIZING RECORD QUALITY WITH VARYING TRACK AND LINEAR DENSITY BY ALLOWING OVERLAPPING DATA TRACKS 有权
    通过允许重写数据轨迹优化记录质量与改变轨迹和线性密度的方法和装置

    公开(公告)号：US20060227449A1

    公开(公告)日：2006-10-12

    申请号：US11104209

    申请日：2005-04-11

    申请人： Xiaodong Che ,  Wen-Chien Hsiao ,  Yansheng Luo ,  Xiaoyu Sui ,  Samuel Yuan

    发明人： Xiaodong Che ,  Wen-Chien Hsiao ,  Yansheng Luo ,  Xiaoyu Sui ,  Samuel Yuan

    IPC分类号： G11B21/02

    CPC分类号： G11B5/59633 ,  G11B5/012 ,  G11B2005/001

    摘要： A method and apparatus for optimizing data record quality on a disk for a pair of read and write heads, in which the write head is bigger, by adaptively varying linear and track density of overlapping recorded tracks to achieve a target storage capacity. In the method, target storage capacity and radial writing direction are selected. Read and write widths of heads are determined. A linear density and offset distance pairing for optimizing record quality at target storage capacity is determined, wherein offset distance is less than write width but greater than read width. The write head writes a track at the linear density, is offset in the radial direction by the offset distance, and the offset distance is stored. The write head writes a new track at the linear density. Offsetting, storing offset, and writing a new track are repeated until desired data is written into a cluster.

    摘要翻译： 一种用于通过自适应地改变重叠记录轨道的线性和轨道密度以实现目标存储容量来优化写头的一对读写头的盘上的数据记录质量的方法和装置。 在该方法中，选择目标存储容量和径向写入方向。 磁头读写宽度确定。 确定用于优化目标存储容量的记录质量的线性密度和偏移距离配对，其中偏移距离小于写入宽度但大于读取宽度。 写入头以线性密度写入轨迹，在径向上偏移偏移距离，并存储偏移距离。 写头以线性密度写入新的轨迹。 重复偏移，存储偏移和写入新轨道，直到所需数据写入群集。

    Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion
    5.
    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。

    Laminated write gap to improve writer performance
    6.
    发明授权
    Laminated write gap to improve writer performance 失效
    叠层写差距提高作家的表现

    公开(公告)号：US07525760B2

    公开(公告)日：2009-04-28

    申请号：US11104333

    申请日：2005-04-11

    申请人： Wen-Chien Hsiao ,  Terence Lam ,  Bernd Lamberts ,  Yinshi Liu ,  Terry Olson ,  Michael Yang ,  Samuel Yuan

    发明人： Wen-Chien Hsiao ,  Terence Lam ,  Bernd Lamberts ,  Yinshi Liu ,  Terry Olson ,  Michael Yang ,  Samuel Yuan

    IPC分类号： G11B5/235

    CPC分类号： G11B5/3116 ,  G11B5/235

    摘要： Embodiments of the present invention recite a write gap structure for a magnetic recording head. In one embodiment, the write gap structure comprises at least one layer of inert material is disposed proximate to the P2 pole of a magnetic recording head. A layer of magnetic material is disposed between the layer of inert material and the P1 pedestal (P1P) of the magnetic recording head. In embodiments of the present invention, the write gap structure further comprises a second layer of inert material is disposed between the layer of magnetic material and the P1P of the magnetic recording head. In embodiments of the present invention, the write gap structure only overlies a portion of the write gap of the magnetic recording head with reference to the throat height dimension of the write gap.

    摘要翻译： 本发明的实施例叙述磁记录头的写间隙结构。 在一个实施例中，写间隙结构包括至少一层惰性材料，靠近磁记录头的P2极设置。 磁性材料层设置在惰性材料层与磁记录头的P1基座（P1P）之间。 在本发明的实施例中，写间隙结构还包括第二层惰性材料设置在磁性材料层和磁记录头的P1P之间。 在本发明的实施例中，相对于写入间隙的喉部高度尺寸，写入间隙结构仅覆盖磁记录头的写入间隙的一部分。

    Tungsten heat sink structures in a thin film magnetic head
    8.
    发明申请
    Tungsten heat sink structures in a thin film magnetic head 审中-公开
    钨散热器结构在薄膜磁头中

    公开(公告)号：US20060098337A1

    公开(公告)日：2006-05-11

    申请号：US10985527

    申请日：2004-11-10

    申请人： Hung-Chin Guthrie ,  Ming Jiang ,  Samuel Yuan

    发明人： Hung-Chin Guthrie ,  Ming Jiang ,  Samuel Yuan

    IPC分类号： G11B5/147 ,  G11B5/127

    CPC分类号： G11B5/3967 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3136

    摘要： A magnetic head having one or more tungsten heat sinks is disposed within the magnetic head to draw heat away from the components of the head to limit unwanted thermal expansion and protrusion of the components of the magnetic head into the air bearing gap. In a first embodiment, a tungsten heat sink is fabricated upon the magnetic head substrate, immediately prior to the fabrication of the first magnetic shield. In another embodiment, a tungsten heat sink is fabricated immediately following the fabrication of the second magnetic shield. In a further embodiment the tungsten heat sink is fabricated following the fabrication of the second magnetic pole of the write head portion of the magnetic head. An enhanced embodiment may contain two or all three of the heat sinks described above. In fabricating the heat sinks, photolithographic fabrication techniques, as are well known to those skilled in the art, are utilized.

    摘要翻译： 具有一个或多个钨散热器的磁头设置在磁头内以将热量从磁头的部件吸走，以限制磁头的不必要的热膨胀和突出到空气轴承间隙中。 在第一实施例中，在制造第一磁屏蔽之前，在磁头基板上制造钨散热器。 在另一个实施例中，在制造第二磁屏蔽之后立即制造钨散热器。 在另一实施例中，在制造磁头的写入头部分的第二磁极之后制造钨散热器。 增强的实施例可以包含上述两个或所有三个散热器。 在制造散热器时，利用本领域技术人员公知的光刻制造技术。

    Process for fabricating a magnetic recording head with a laminated write gap
    9.
    发明授权
    Process for fabricating a magnetic recording head with a laminated write gap 失效
    用于制造具有层压写入间隙的磁记录头的工艺

    公开(公告)号：US07500302B2

    公开(公告)日：2009-03-10

    申请号：US11104212

    申请日：2005-04-11

    申请人： Wen-Chien Hsiao ,  Terence Lam ,  Yinshi Liu ,  Michael Yang ,  Samuel Yuan

    发明人： Wen-Chien Hsiao ,  Terence Lam ,  Yinshi Liu ,  Michael Yang ,  Samuel Yuan

    IPC分类号： G11B5/127 ,  H04R31/00

    CPC分类号： G11B5/3116 ,  G11B5/23 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

    摘要： Embodiments of the present invention recite a process for fabricating a write gap structure for a magnetic recording head. In one embodiment, at least one layer of inert material is deposited which is disposed proximate to the P2 pole of a magnetic recording head. A layer of magnetic material is deposited which is disposed between the layer of inert material and the P1 pedestal (P1P) of the magnetic recording head. In embodiments of the present invention, a second layer of inert material is deposited which is disposed between the layer of magnetic material and the P1P of the magnetic recording head. In embodiments of the present invention, the throat height of the write gap structure is defined wherein the layer of magnetic material and the inert layer only overlie a portion of the P1 pedestal of the magnetic recording head.

    摘要翻译： 本发明的实施例背诵了一种用于制造用于磁记录头的写间隙结构的方法。 在一个实施例中，沉积至少一层惰性材料，其被布置成靠近磁记录头的P2极。 沉积磁性材料层，其设置在惰性材料层与磁记录头的P1基座（P1P）之间。 在本发明的实施例中，沉积第二层惰性材料，该层被设置在磁性材料层和磁记录头的P1P之间。 在本发明的实施例中，限定了写入间隙结构的喉部高度，其中磁性材料层和惰性层仅覆盖在磁记录头的P1基座的一部分上。