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    Magnetic recording heads having thin thermally conductive undercoating
    1.
    发明授权
    Magnetic recording heads having thin thermally conductive undercoating 失效
    具有薄导热底涂层的磁记录头

    公开(公告)号：US07035047B2

    公开(公告)日：2006-04-25

    申请号：US10271293

    申请日：2002-10-15

    申请人： Wen-Chien Hsiao ,  Peter Beverley Powell Phipps ,  Yong Shen ,  John Jaekoyun Yang ,  Samuel Wei-san Yuan

    发明人： Wen-Chien Hsiao ,  Peter Beverley Powell Phipps ,  Yong Shen ,  John Jaekoyun Yang ,  Samuel Wei-san Yuan

    IPC分类号： G11B5/147

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/332 ,  G11B5/3967 ,  G11B5/40 ,  G11B2005/3996

    摘要： A magnetic head having read and write elements is provided according to one embodiment. The head includes a substrate. An undercoating is coupled to the substrate. The undercoating has a preferred thickness of between about 1.5 and 0.5 microns or less in a direction perpendicular to the planar surface of the substrate engaging the undercoating. Preferably, the undercoating is reduced to a desired thickness during fabrication using chemical mechanical polishing. The undercoating is constructed of a material having a thermal conductivity greater than that of amorphous Al2O3. An electric contact pad is operatively coupled to a layer positioned between the pad and the undercoating. Electric contact pads of read and write elements are preferably separated from the undercoating by insulation planarization layers. A write element is coupled to the undercoating. The write element has an electrically conductive coil. The new thinner and more thermally conductive undercoating allows more heat to transfer through it from the write element to the substrate.

    摘要翻译： 根据一个实施例，提供具有读和写元件的磁头。 头包括基底。 底涂层与基底结合。 底涂层在垂直于与底涂层接触的基材的平坦表面的方向上具有约1.5至0.5微米或更小的优选厚度。 优选地，在使用化学机械抛光的制造期间，底涂层被还原成所需的厚度。 底涂层由热导率大于无定形Al 2 O 3 3的材料构成。 电接触垫可操作地耦合到位于垫和底涂层之间的层。 读取和写入元件的电接触焊盘优选通过绝缘平坦化层与底涂层分离。 写入元件耦合到底涂层。 写入元件具有导电线圈。 新的更薄且更热导热的底涂层允许更多的热量从写入元件转移到衬底。

    Enhanced low profile magnet write head
    4.
    发明授权
    Enhanced low profile magnet write head 失效
    增强型低磁铁磁头

    公开(公告)号：US06687083B2

    公开(公告)日：2004-02-03

    申请号：US09935361

    申请日：2001-08-22

    申请人： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Hugo Alberto Emilio Santini ,  Joseph Francis Smyth ,  Samuel Wei-san Yuan

    发明人： Wenchein Hsiao ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Hugo Alberto Emilio Santini ,  Joseph Francis Smyth ,  Samuel Wei-san Yuan

    IPC分类号： G11B5147

    CPC分类号： G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3163

    摘要： An low profile inductive write head is provided to improve track definition and head efficiency and to reduce overcoat and pole tip protrusion and cracking caused by thermal expansion. A first insulation layer of an insulation stack enclosing the coil layer is formed of an non-magnetic inorganic insulator material such as aluminum oxide, silicon dioxide or titanium dioxide having a thickness of in the range of 0.2-0.3 microns. The thinner first insulation layer results in a significantly reduced slope of the insulation stack which decreases reflective notching during processing of the second pole tip to improve track definition. Improved thermal conduction properties of the inorganic insulator material improves heat sinking of the write coil reducing overcoat and pole tip protrusion and cracking at the pole tip/write gap layer interface.

    摘要翻译： 提供了一种低调的感应写头，以提高轨道清晰度和头部效率，并减少由热膨胀引起的外涂层和极尖突起和开裂。 封闭线圈层的绝缘堆叠的第一绝缘层由厚度为0.2-0.3微米的非磁性无机绝缘体材料例如氧化铝，二氧化硅或二氧化钛形成。 较薄的第一绝缘层导致绝缘堆叠的显着减小的斜率，这降低了在第二极尖的处理期间的反射缝合，以改善轨道定义。 无机绝缘体材料的改进的导热性能改善了写入线圈的散热，从而减小了极尖/写入间隙层界面处的外涂层和极尖突起以及开裂。

    Method for defining a perpendicular magnetic head
    5.
    发明授权
    Method for defining a perpendicular magnetic head 有权
    用于定义垂直磁头的方法

    公开(公告)号：US07870659B2

    公开(公告)日：2011-01-18

    申请号：US11852152

    申请日：2007-09-07

    申请人： Vladimir Nikitin ,  Samuel Wei-san Yuan

    发明人： Vladimir Nikitin ,  Samuel Wei-san Yuan

    IPC分类号： G11B5/127 ,  H04R31/00

    CPC分类号： G11B5/265 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T428/1107 ,  Y10T428/1171 ,  Y10T428/1193

    摘要： A method for defining a perpendicular magnetic head is provided. The method includes forming a portion of the read and write head including depositing a sensor film on a surface only over a region of the read head to form a sensor; depositing a full-film shaping pole layer over the write head; defining a track width of the sensor; patterning a photoresist to define a pole tip of the write head including write track width and flare position, and at the same time to define a back edge of the sensor; removing material of the sensor and pole tip from the areas not covered by the photoresist; completing the fabrication of the write and read head layers; and lapping the write pole concurrently with the sensor to define the flare position of the pole tip and to define a sensor height with accurate positioning of write head flare.

    摘要翻译： 提供了一种用于限定垂直磁头的方法。 该方法包括形成读写头的一部分，包括仅在读头的区域上的表面上沉积传感器膜以形成传感器; 在写入头上沉积全膜成形极层; 定义传感器的轨道宽度; 图案化光致抗蚀剂以限定写入头的磁极尖端，包括写入磁道宽度和扩张位置，同时限定传感器的后边缘; 从未被光致抗蚀剂覆盖的区域移除传感器和极尖的材料; 完成写和读头层的制作; 并且与传感器同时研磨写入极，以限定极尖的扩张位置，并且通过准确定位写头光斑来定义传感器高度。

    Dual polarity bias for prolonging the life of a heating element in magnetic data storage devices
    6.
    发明授权
    Dual polarity bias for prolonging the life of a heating element in magnetic data storage devices 有权
    双极性偏置，用于延长磁数据存储设备中加热元件的使用寿命

    公开(公告)号：US07330336B2

    公开(公告)日：2008-02-12

    申请号：US11439296

    申请日：2006-05-22

    申请人： Jih-Shiuan Luo ,  Samuel Wei-san Yuan

    发明人： Jih-Shiuan Luo ,  Samuel Wei-san Yuan

    IPC分类号： G11B5/03 ,  G11B5/127

    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
    7.
    发明授权
    Method and apparatus for optimizing record quality with varying track and linear density by allowing overlapping data tracks 有权
    通过允许重叠的数据轨道来优化具有不同轨迹和线性密度的记录质量的方法和装置

    公开(公告)号：US07133241B2

    公开(公告)日：2006-11-07

    申请号：US11104209

    申请日：2005-04-11

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

    发明人： Xiaodong Che ,  Wen-Chien David Hsiao ,  Yansheng Luo ,  Xiaoyu Sui ,  Samuel Wei-san 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。

    Side-by-side magnetic head configuration with flared pole tip layer and read sensor sharing same plane
    8.
    发明授权
    Side-by-side magnetic head configuration with flared pole tip layer and read sensor sharing same plane 失效
    并排磁头配置带扩口极尖层和读取传感器共享同一平面

    公开(公告)号：US07692893B2

    公开(公告)日：2010-04-06

    申请号：US10884367

    申请日：2004-06-30

    申请人： Vladimir Nikitin ,  Samuel Wei-san Yuan

    发明人： Vladimir Nikitin ,  Samuel Wei-san Yuan

    IPC分类号： G11B5/265 ,  G11B5/29 ,  G11B5/31 ,  G11B5/39

    CPC分类号： G11B5/265 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T428/1107 ,  Y10T428/1171 ,  Y10T428/1193

    摘要： A method and apparatus for processing sub-micron write head flare definition is provided. The method for processing a perpendicular magnetic head forms a portion of a perpendicular write head, where the portion of the write head includes a first pole layer, a coil layer, a second pole layer and a write pole, the method forms a portion of a magnetic read head adjacent to the portion of the perpendicular write head, where the portion of the read head includes a shield layer and a sensor, the method also laps the write pole concurrently with the sensor to define a flare position of the pole tip and to define a sensor height, where the flare position of the pole tip is defined in the same photo-lithography step as the back edge of the sensor.

    摘要翻译： 提供了一种用于处理亚微米写头闪光定义的方法和装置。 用于处理垂直磁头的方法形成垂直写头的一部分，其中写头的部分包括第一极层，线圈层，第二极层和写极，该方法形成一部分 磁读头与垂直写头的部分相邻，其中读头的部分包括屏蔽层和传感器，该方法还与传感器同时缠绕写入极，以限定极尖的闪光位置，并且 定义传感器高度，其中极尖的光斑位置在与传感器的后边缘相同的光刻步骤中定义。

    Method And Apparatus For Processing Sub-Micron Write Head Flare Definition
    9.
    发明申请
    Method And Apparatus For Processing Sub-Micron Write Head Flare Definition 有权
    用于处理亚微米写头闪光定义的方法和装置

    公开(公告)号：US20090095707A1

    公开(公告)日：2009-04-16

    申请号：US11852152

    申请日：2007-09-07

    申请人： Vladimir Nikitin ,  Samuel Wei-san Yuan

    发明人： Vladimir Nikitin ,  Samuel Wei-san Yuan

    IPC分类号： B44C1/22

    CPC分类号： G11B5/265 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T428/1107 ,  Y10T428/1171 ,  Y10T428/1193

    摘要： A method and apparatus for processing sub-micron write head flare definition is provided. The method for processing a perpendicular magnetic head forms a portion of a perpendicular write head, where the portion of the write head includes a first pole layer, a coil layer, a second pole layer and a write pole, the method forms a portion of a magnetic read head adjacent to the portion of the perpendicular write head, where the portion of the read head includes a shield layer and a sensor, the method also laps the write pole concurrently with the sensor to define a flare position of the pole tip and to define a sensor height, where the flare position of the pole tip is defined in the same photo-lithography step as the back edge of the sensor.

    摘要翻译： 提供了一种用于处理亚微米写头闪光定义的方法和装置。 用于处理垂直磁头的方法形成垂直写头的一部分，其中写头的部分包括第一极层，线圈层，第二极层和写极，该方法形成一部分 磁读头与垂直写头的部分相邻，其中读头的部分包括屏蔽层和传感器，该方法还与传感器同时缠绕写入极，以限定极尖的闪光位置，并且 定义传感器高度，其中极尖的光斑位置在与传感器的后边缘相同的光刻步骤中定义。