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1. 发明授权

US07085100B2 Magnetic head having a bilayer pole tip 失效
标题翻译：具有双层极尖的磁头
公开(公告)号：US07085100B2
公开(公告)日：2006-08-01
申请号：US10101394
申请日：2002-03-19
申请人： Tom King Harris, III , Wen-chien David Hsiao , Gautam Mohan Khera , David Kaimon Lee , Edward Hin Pong Lee , Hugo Alberto Emilio Santini , Samuel Wei-san Yuan
发明人： Tom King Harris, III , Wen-chien David Hsiao , Gautam Mohan Khera , David Kaimon Lee , Edward Hin Pong Lee , Hugo Alberto Emilio Santini , Samuel Wei-san Yuan
IPC分类号： G11B5/147
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3116 , G11B5/313 , G11B5/3146 , G11B5/3153 , G11B5/3163 , G11B5/3967 , G11B2005/3996
摘要： A magnetic head having improved overwrite capabilities and reduced fringing fields are described along with methods of making the same. The magnetic head has a first pole piece and a second pole piece. The first pole piece includes a first bottom pole piece layer, a pedestal portion formed over the first bottom pole piece layer, and a notched top pole portion formed over the pedestal portion. A gap layer separates the second pole piece from the notched top pole portion. The pedestal portion has a first saturation magnetization MS1 and the top pole portion has a second saturation magnetization MS2 that is greater than the first saturation magnetization MS1. The top pole portion has a substantially planar top surface over which a portion of the gap layer and the second pole piece are formed.
摘要翻译：具有改进的覆盖能力和降低的边缘场的磁头与其制造方法一起被描述。磁头具有第一极靴和第二极靴。第一极靴包括第一底极片层，形成在第一底极片层上的基座部分和形成在基座部分上的切口顶部极片。间隙层将第二极靴与切口的顶部极部分离开。基座部分具有第一饱和磁化强度M S1，并且顶极部分具有大于第一饱和磁化强度M S1的第二饱和磁化强度M S2 S2， / SUB>。顶极部分具有大致平坦的顶表面，间隙层和第二极片的一部分形成在顶面上。

2. 发明授权

US06804879B2 Method of fabricating a magnetic transducer with a write head having a multi-layer coil 失效
标题翻译：一种具有具有多层线圈的写头的磁换能器的方法
公开(公告)号：US06804879B2
公开(公告)日：2004-10-19
申请号：US10279169
申请日：2002-10-23
申请人： Richard D. Hsiao , Quang Le , Edward Hin Pong Lee , Paul Phong Nguyen , Son Van Nguyen , Denny D. Tang , Bradley Douglas Webb , Patrick Rush Webb , Samuel Wei-san Yuan
发明人： Richard D. Hsiao , Quang Le , Edward Hin Pong Lee , Paul Phong Nguyen , Son Van Nguyen , Denny D. Tang , Bradley Douglas Webb , Patrick Rush Webb , Samuel Wei-san Yuan
IPC分类号： G11B5127
CPC分类号： G11B5/3123 , G11B5/17 , G11B5/3163 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064
摘要： A method for producing a magnetic transducer with a inductive write head having a multilayer coil with a high aspect ratio and a short yoke is provided. A damascene process is used for two coil layers and a conventional process for the third coil layer. The process of the invention allows a seed layer for the coil to be deposited on the side walls of the trenches for the first and second coil layers. In one embodiment the seed layer for the coil is preceded by an adhesion layer.
摘要翻译：提供了具有具有高纵横比的多层线圈和短磁轭的感应写头的磁换能器的方法。两个线圈层和第三个线圈层的常规工艺使用镶嵌工艺。本发明的方法允许用于线圈的籽晶层沉积在用于第一和第二线圈层的沟槽的侧壁上。在一个实施例中，用于线圈的种子层之前是粘附层。

3. 发明授权

US07870659B2 Method for defining a perpendicular magnetic head 有权
标题翻译：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。

4. 发明授权

US07330336B2 Dual polarity bias for prolonging the life of a heating element in magnetic data storage devices 有权
标题翻译：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。

5. 发明授权

US07133241B2 Method and apparatus for optimizing record quality with varying track and linear density by allowing overlapping data tracks 有权
标题翻译：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。

6. 发明授权

US07692893B2 Side-by-side magnetic head configuration with flared pole tip layer and read sensor sharing same plane 失效
标题翻译：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。

7. 发明申请

US20090095707A1 Method And Apparatus For Processing Sub-Micron Write Head Flare Definition 有权
标题翻译：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。

8. 发明授权

US07079355B2 Magnetic transducer with a write head having a multi-layer coil 失效
标题翻译：具有具有多层线圈的写头的磁性换能器
公开(公告)号：US07079355B2
公开(公告)日：2006-07-18
申请号：US10812720
申请日：2004-03-29
申请人： Richard D. Hsiao , Quang Le , Edward Hin Pong Lee , Paul Phong Nguyen , Son Van Nguyen , Denny D. Tang , Bradley Douglas Webb , Patrick Rush Webb , Samuel Wei-san Yuan
发明人： Richard D. Hsiao , Quang Le , Edward Hin Pong Lee , Paul Phong Nguyen , Son Van Nguyen , Denny D. Tang , Bradley Douglas Webb , Patrick Rush Webb , Samuel Wei-san Yuan
IPC分类号： G11B5/147
CPC分类号： G11B5/3123 , G11B5/17 , G11B5/3163 , Y10T29/49048 , Y10T29/49052 , Y10T29/4906 , Y10T29/49062 , Y10T29/49064
摘要： A method for producing a magnetic transducer with an inductive write head having a multilayer coil with a high aspect ratio and a short yoke is disclosed. A damascene process is used for two coil layers and a conventional process for the third coil layer. The process of the invention allows a seed layer for the coil to be deposited on the side walls of the trenches for the first and second coil layers. In one embodiment the seed layer for the coil is preceded by an adhesion layer.
摘要翻译：公开了一种具有具有高纵横比的多层线圈和短磁轭的感性写头的磁换能器的方法。两个线圈层和第三个线圈层的常规工艺使用镶嵌工艺。本发明的方法允许用于线圈的籽晶层沉积在用于第一和第二线圈层的沟槽的侧壁上。在一个实施例中，用于线圈的种子层之前是粘附层。

9. 发明授权

US06859347B2 Magnetic transducer with electrically conductive shield for reducing electromagnetic interference 失效
标题翻译：具有导电屏蔽的磁性换能器，用于减少电磁干扰
公开(公告)号：US06859347B2
公开(公告)日：2005-02-22
申请号：US09756377
申请日：2001-01-04
申请人： Richard Hsiao , Klaas Berend Klaassen , Edward Hing Pong Lee , Timothy J. Moran , Vladimir Nikitin , Michael Paul Salo , Samuel Wei-San Yuan
发明人： Richard Hsiao , Klaas Berend Klaassen , Edward Hing Pong Lee , Timothy J. Moran , Vladimir Nikitin , Michael Paul Salo , Samuel Wei-San Yuan
IPC分类号： G11B5/11 , G11B5/31 , G11B5/33 , G11B5/39 , G11B5/48
CPC分类号： G11B5/4853 , G11B5/11 , G11B5/3143 , G11B5/33 , G11B5/3903 , G11B5/486 , Y10T29/49032
摘要： A magnetic transducer including an electrically conductive shield (ECS) which is disposed between the substrate and first magnetic shield is described. The ECS is preferably embedded in an insulating undercoat layer. The ECS is preferably electrically isolated from the magnetic sensor element and is externally connected to a ground available in the disk drive through the arm electronics. Two alternative ways for connecting the ECS to a ground are described. In one embodiment which is only effective with single-ended input type arm electronics, the ECS is connected to a ground through a via to a lead pad for the read head which is connected to the ground of the arm electronics. In a second and more preferred embodiment a separate lead pad is included on the head to allow the ECS to be connected to electronic or case ground when the head is installed in the arm. The extent of the ECS should be sufficiently large to cover the read head portion of the transducer, i.e., from the edge of the first magnetic shield to the outer edges of the read contact pads, but should preferably not cover the write head pads.
摘要翻译：描述了包括设置在基板和第一磁屏蔽之间的导电屏蔽（ECS）的磁换能器。 ECS优选地嵌入绝缘底涂层中。 ECS优选地与磁传感器元件电隔离，并且通过臂电子器件外部连接到盘驱动器中可用的地面。描述了将ECS连接到地面的两种替代方式。在一个实施例中，其仅对单端输入型臂电子器件有效，ECS通过通孔连接到地面，用于连接到臂电子器件的地面的用于读头的引线板。在第二和更优选的实施例中，头部包括单独的引线板，以便当头部安装在臂中时，允许ECS连接到电子或壳体接地。 ECS的范围应该足够大以覆盖换能器的读头部分，即从第一磁屏蔽的边缘到读接触焊盘的外边缘，但是最好不覆盖写头焊盘。

10. 发明授权

US07035047B2 Magnetic recording heads having thin thermally conductive undercoating 失效
标题翻译：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。

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