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    Perpendicular magnetic write head with shunt structure to prevent read sensor interference
    2.
    发明授权
    Perpendicular magnetic write head with shunt structure to prevent read sensor interference 有权
    垂直磁头，分流结构，防止读取传感器干扰

    公开(公告)号：US07639453B2

    公开(公告)日：2009-12-29

    申请号：US11497202

    申请日：2006-08-01

    申请人： Hardayal Singh Gill ,  Kuok San Ho ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

    发明人： Hardayal Singh Gill ,  Kuok San Ho ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3123 ,  G11B5/1278 ,  G11B5/3967

    摘要： A magnetic head structure for use in perpendicular magnetic recording. The magnetic head includes a magnetic write head having a return pole with a magnetic shunt structure extending from the back end opposite the ABS. The magnetic shunt structure prevents magnetic field from the write coil from reaching and affecting the read head. More specifically the shunt structure prevents magnetic field from the portion of the write coil beyond the back gap (as measured from the ABS) from magnetizing a magnetic shield of the read head. The shunt structure is also configured so as to avoid stray field writing. The size and shape of the shunt structure is therefore, limited to avoid attracting stray fields that might cause such stray field writing.

    摘要翻译： 用于垂直磁记录的磁头结构。 磁头包括具有从与ABS相对的后端延伸的磁分路结构的返回极的磁写头。 磁分路结构防止来自写入线圈的磁场到达并影响读取头。 更具体地说，分流结构防止来自写入线圈的部分的磁场超过后隙（从ABS测量）来磁化读取磁头的磁屏蔽。 分流结构也被配置为避免杂散场写入。 因此，分流结构的尺寸和形状受到限制，以避免吸引可能导致这种杂散场写入的杂散场。

    Perpendicular magnetic write head with shunt structure to prevent read sensor interference
    7.
    发明申请
    Perpendicular magnetic write head with shunt structure to prevent read sensor interference 有权
    垂直磁头，分流结构，防止读取传感器干扰

    公开(公告)号：US20080030897A1

    公开(公告)日：2008-02-07

    申请号：US11497202

    申请日：2006-08-01

    申请人： Hardayal Singh Gill ,  Kuok San Ho ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

    发明人： Hardayal Singh Gill ,  Kuok San Ho ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

    IPC分类号： G11B5/147 ,  G11B5/127

    CPC分类号： G11B5/3123 ,  G11B5/1278 ,  G11B5/3967

    摘要： A magnetic head structure for use in perpendicular magnetic recording. The magnetic head includes a magnetic write head having a return pole with a magnetic shunt structure extending from the back end opposite the ABS. The magnetic shunt structure prevents magnetic field from the write coil from reaching and affecting the read head. More specifically the shunt structure prevents magnetic field from the portion of the write coil beyond the back gap (as measured from the ABS) from magnetizing a magnetic shield of the read head. The shunt structure is also configured so as to avoid stray field writing. The size and shape of the shunt structure is therefore, limited to avoid attracting stray fields that might cause such stray field writing.

    摘要翻译： 用于垂直磁记录的磁头结构。 磁头包括具有从与ABS相对的后端延伸的磁分路结构的返回极的磁写头。 磁分路结构防止来自写入线圈的磁场到达并影响读取头。 更具体地说，分流结构防止来自写入线圈的部分的磁场超过后隙（从ABS测量）来磁化读取磁头的磁屏蔽。 分流结构也被配置为避免杂散场写入。 因此，分流结构的尺寸和形状受到限制，以避免吸引可能导致这种杂散场写入的杂散场。

    Magnetic head having thermally assisted recording device, and method of fabrication thereof
    8.
    发明授权
    Magnetic head having thermally assisted recording device, and method of fabrication thereof 有权
    具有热辅助记录装置的磁头及其制造方法

    公开(公告)号：US07187520B2

    公开(公告)日：2007-03-06

    申请号：US10791186

    申请日：2004-03-01

    申请人： Edward Hin Pong Lee ,  Jeffrey S. Lille ,  Vladimir Nikitin ,  Hugo Alberto Emilio Santini

    发明人： Edward Hin Pong Lee ,  Jeffrey S. Lille ,  Vladimir Nikitin ,  Hugo Alberto Emilio Santini

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3133

    摘要： A magnetic head including a media heating device that is fabricated within the magnetic head structure. The media heating device includes an electrically resistive element that is fabricated above the first magnetic pole layer close to the ABS surface of the head. A P1 pole pedestal is fabricated above the heating element. Electrical insulation layers are fabricated beneath and above the heating element to prevent electrical shorting to the P1 pole layer and the P1 pole pedestal that are disposed beneath and above the heating element, respectively.

    摘要翻译： 一种磁头，包括制造在磁头结构内的介质加热装置。 介质加热装置包括电阻元件，其制造在接近头部的ABS表面的第一磁极层的上方。 在加热元件上方制造一个P 1极基座。 在加热元件下方和上方制造电绝缘层，以防止分别设置在加热元件下方和上方的P 1极层和P 1极基座的电短路。

    Magnetic head having a write coil structure with a reduced electrical resistance for reducing thermal protrusion
    9.
    发明授权
    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：US07079353B2

    公开(公告)日：2006-07-18

    申请号：US10629060

    申请日：2003-07-29

    申请人： Wen-chien David Hsiao ,  Edward Hin Pong Lee ,  Vladimir Nikitin ,  Samuel Weisan Yuan

    发明人： Wen-chien David Hsiao ,  Edward Hin Pong Lee ,  Vladimir Nikitin ,  Samuel Weisan Yuan

    IPC分类号： G11B5/17

    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，使用镶嵌工艺形成写入线圈，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。

    Apparatus for patterning a self-aligned coil using a damascene process
    10.
    发明授权
    Apparatus for patterning a self-aligned coil using a damascene process 有权
    用于使用镶嵌工艺图案化自对准线圈的装置

    公开(公告)号：US07075750B2

    公开(公告)日：2006-07-11

    申请号：US10652877

    申请日：2003-08-29

    申请人： Daniel Wayne Bedell ,  Quang Le ,  Edward Hin Pong Lee ,  Son Van Nguyen ,  Vladimir Nikitin ,  Murali Ramasubramanian

    发明人： Daniel Wayne Bedell ,  Quang Le ,  Edward Hin Pong Lee ,  Son Van Nguyen ,  Vladimir Nikitin ,  Murali Ramasubramanian

    IPC分类号： G11B5/147

    CPC分类号： G11B5/127

    摘要： An apparatus for patterning a self-aligned coil using a damascene process is disclosed. Coil pockets are formed in a first insulation layer disposed over a first pole layer. A barrier/seed layer is deposited along walls of the coil pockets in the insulation layer. Copper is formed in the coil pockets and over the insulation layer. The copper is planarized down to the insulation layer. The self-aligned coil process packs more copper into the same coil pocket and relaxes the coil alignment tolerance. Protrusions are prevented because of the more efficient and uniform spacing of the coil to reduce heat buildup in the head during a write.

    摘要翻译： 公开了一种使用镶嵌工艺图案化自对准线圈的装置。 在设置在第一极层上的第一绝缘层中形成线圈腔。 隔离层/籽晶层沿绝缘层中的线圈袋的壁被沉积。 在线圈袋中形成铜，并在绝缘层上形成铜。 铜平坦化到绝缘层。 自对准线圈工艺将更多的铜包装到相同的线圈袋中，并松弛线圈对准公差。 由于在写入期间线圈的间隔更加有效和均匀以减少头部的积聚，所以防止了突起。