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1. 发明申请

US20060092565A1 Notched shield and pole structure with slanted wing for perpendicular recording 有权
标题翻译：具有垂直记录的倾斜翼的缺口盾和杆结构
公开(公告)号：US20060092565A1
公开(公告)日：2006-05-04
申请号：US10976479
申请日：2004-10-29
申请人： Kuok Ho , Yimin Hsu , Ching Tsang
发明人： Kuok Ho , Yimin Hsu , Ching Tsang
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/398
摘要： A magnetic structure for use in a magnetic head for avoiding stray field writing. The magnetic structure can be for example a magnetic shield or could be a magnetic pole of a write head and is particularly advantageous for use in a perpendicular recording system, because such perpendicular recording systems are especially susceptible to stray field writing. The magnetic structure includes a forward protruding portion that extends toward the air bearing surface (ABS) of the head also includes first and second wing portions that extend laterally from the forward protruding portion. The wing portions each have a front edge that is recessed from the ABS. The wings are tapered so that the amount of recess of the front edge of the wings increases with lateral distance from the center of the magnetic structure.
摘要翻译：用于磁头的磁结构，用于避免杂散场写入。磁性结构可以是例如磁屏蔽或者可以是写入磁头的磁极，并且对于在垂直记录系统中使用是特别有利的，因为这样的垂直记录系统特别容易受到杂散磁场写入的影响。磁性结构包括朝向头部的空气支承表面（ABS）延伸的向前突出部分还包括从前突出部分横向延伸的第一和第二翼部分。翼部各自具有从ABS凹入的前边缘。翅膀是锥形的，使得翼的前边缘的凹部的数量随着与磁性结构的中心的横向距离而增加。

2. 发明申请

US20060092566A1 Double notched shield and pole structure for stray field reduction in a magnetic head 失效
标题翻译：用于磁头中杂散场减少的双切口屏蔽和极结构
公开(公告)号：US20060092566A1
公开(公告)日：2006-05-04
申请号：US10977446
申请日：2004-10-29
申请人： Kuok Ho , Yimin Hsu , Ching Tsang
发明人： Kuok Ho , Yimin Hsu , Ching Tsang
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/11 , G11B5/1278 , G11B5/3146
摘要： A double notched magnetic structure for use in a magnetic head for avoiding stray field writing. The structure could be a magnetic shield, magnetic pole of a write head or some other magnetic structure used in a magnetic head of a magnetic recording system, and has notches formed at both the front end (adjacent to the ABS) and at the back end (away from the ABS). The notches at the front end form a forward protruding portions that performs the necessary function of the structure, such as magnetic shielding, and has laterally extending recessed portions (recessed by the front notches) that move the flux focal points of the structure away from the ABS to avoid stray field writing. The back notches form a backward extending portion that affects the geometry of the structure to prevent the focusing of magnetic flux caused by stray magnetic fields having a component perpendicular to the ABS.
摘要翻译：用于磁头中的双切口磁结构，用于避免杂散场写入。该结构可以是磁屏蔽，写磁头的磁极或磁记录系统的磁头中使用的一些其它磁性结构，并且在前端（邻近ABS）和后端形成有缺口（远离ABS）。前端的凹口形成一个向前突出的部分，其执行诸如磁屏蔽的结构的必要功能，并且具有横向延伸的凹陷部分（由凹槽凹陷），该凹陷部分将结构的通量焦点移动离开 ABS避免杂散场写入。后凹口形成一个向后延伸部分，该部分影响结构的几何形状，以防止由具有垂直于ABS的分量的杂散磁场引起的磁通聚焦。

3. 发明申请

US20060092562A1 Winged design for reducing corner stray magnetic fields 失效
公开(公告)号：US20060092562A1
公开(公告)日：2006-05-04
申请号：US10977315
申请日：2004-10-29
申请人： Kuok Ho , Yimin Hsu , Masafumi Mochizuki , Ching Tsang , Roger Wood
发明人： Kuok Ho , Yimin Hsu , Masafumi Mochizuki , Ching Tsang , Roger Wood
IPC分类号： G11B5/17
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： Embodiments of the present invention are directed to structures of a recording head having a winged design for reducing corner stray magnetic fields. In one embodiment, the present invention comprises a magnetic recording head comprising a plurality of components. In embodiments of the present invention at least one of the plurality of components comprises a surface exposed to an air bearing surface when in operation with a recording medium. The surface exposed to the air bearing surface comprises notched edges for constraining corner stray magnetic fields associated therewith.

4. 发明授权

US08503131B2 Perpendicular magnetic write head having a novel shield structure 有权
标题翻译：具有新型屏蔽结构的垂直磁头写头
公开(公告)号：US08503131B2
公开(公告)日：2013-08-06
申请号：US13339310
申请日：2011-12-28
申请人： Yi Zheng , Yimin Hsu , Wen-Chien David Hsiao , Ming Jiang , Aron Pentek , Sue Siyang Zhang , Edward Hin Pong Lee , Hung-chin Guthrie , Ning Shi , Vladimir Nikitin , Prabodh Ratnaparkhi , Yinshi Liu
发明人： Yi Zheng , Yimin Hsu , Wen-Chien David Hsiao , Ming Jiang , Aron Pentek , Sue Siyang Zhang , Edward Hin Pong Lee , Hung-chin Guthrie , Ning Shi , Vladimir Nikitin , Prabodh Ratnaparkhi , Yinshi Liu
IPC分类号： G11B5/147
CPC分类号： G11B5/3166 , G11B5/112 , G11B5/1278 , G11B5/3116 , G11B5/3146 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052 , Y10T428/11 , Y10T428/1186
摘要： A magnetic write head for perpendicular magnetic data recording. The write head includes a substrate and a magnetic write pole formed on the substrate, the write pole having a trailing edge and first and second sides. A magnetic stitched pole is formed over a portion of the magnetic write pole, the stitched pole having a front edge that defines a secondary flare point. First and second non-magnetic side walls are formed at the first and second sides of the write pole. The non-magnetic side walls extend from the substrate at least to the trailing edge of the write pole in a first region near an air bearing surface and wherein the first and second non-magnetic side walls extend from the substrate to a point between the substrate and the trailing edge, allowing the stitched magnetic pole to extend partially over the sides of the write pole.
摘要翻译：用于垂直磁数据记录的磁写头。写入头包括形成在衬底上的衬底和磁性写入磁极，写入极具有后缘和第一和第二侧。在磁性写入磁极的一部分上形成有磁性的缝合磁极，缝合的磁极具有限定二次闪光点的前部边缘。第一和第二非磁性侧壁形成在写入极的第一和第二侧。所述非磁性侧壁在靠近空气支承表面的第一区域中从所述基板至少延伸到所述写柱的后缘，并且其中所述第一和第二非磁性侧壁从所述基板延伸到所述基板之间的点和后缘，允许缝合的磁极部分地延伸在写柱的侧面上。

5. 发明授权

US07848054B2 Perpendicular magnetic write head having a corner notched conformal, wrap-around, trailing magnetic shield for reduced adjacent track interference 有权
标题翻译：垂直磁性写头，具有角切口的保形，环绕，后退磁屏蔽，减少相邻的轨道干扰
公开(公告)号：US07848054B2
公开(公告)日：2010-12-07
申请号：US11744054
申请日：2007-05-03
申请人： Wen-Chien David Hsiao , Yimin Hsu , Vladimir Nikitin , Aron Pentek , Yi Zheng
发明人： Wen-Chien David Hsiao , Yimin Hsu , Vladimir Nikitin , Aron Pentek , Yi Zheng
IPC分类号： G11B5/127
CPC分类号： G11B5/112 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A perpendicular magnetic write head having a conformal wrap around trailing shield. The write head includes a write pole that can be configured with a trapezoidal shape as viewed from the Air Bearing Surface (ABS) and which includes a wrap around trailing magnetic shield. The magnetic shield has a trailing portion that is separated from the leading edge of the write pole by a non-magnetic trailing gap, and has side shield portions that are separated from first and second side portions of the write pole by first and second non-magnetic side gaps. The magnetic shield can be configured with notches at either side of the trailing portion of magnetic shield. These notches can extend in the trailing direction by a distance that is preferably ¼ to 1 times the trailing gap thickness. The width of the straight, trailing portion of the shield is preferable ½ to 1 times of the main pole width.
摘要翻译：垂直磁性写头，其具有围绕后屏蔽的保形包裹。写入头包括写入极，其可以被配置为从空气轴承表面（ABS）观察到的梯形形状，并且包括围绕尾部磁屏蔽的包裹。磁屏蔽具有通过非磁性拖尾间隔与写入极的前端分离的后部，并且具有通过第一和第二非间隙与写入极的第一和第二侧部分离的侧面屏蔽部分，磁侧隙。磁屏蔽可以在磁屏蔽的尾部的任一侧配置有凹口。这些凹口可以在拖尾方向上延伸一段距离，优选为后缘间隙厚度的1/4至1倍。屏蔽的直的后部的宽度优选为主极宽度的1/2至1倍。

6. 发明授权

US07841068B2 Methods of fabricating single-pole recording head having trapezoidal main pole and bevel angle promotion layer 有权
标题翻译：制造具有梯形主极和斜角促进层的单极记录头的方法
公开(公告)号：US07841068B2
公开(公告)日：2010-11-30
申请号：US11772665
申请日：2007-07-02
申请人： Tsung Yuan Chen , Yimin Hsu , Yinshi Liu
发明人： Tsung Yuan Chen , Yimin Hsu , Yinshi Liu
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/1871 , G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49032 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method of fabricating a single-pole perpendicular magnetic recording head to contain a bevel angle promotion layer that facilitates the fabrication of the bevel angle in a trapezoidal main pole. The bevel angle promotion layer is made of a non-magnetic material that is softer than the material (e.g., Al2O3) that normally underlies the main pole. In one embodiment, the bevel angle promotion layer is formed between an end of the yoke and the air bearing surface (ABS), with the top surface of the bevel angle promotion layer being substantially coplanar with the top surface of the yoke. In other embodiment the bevel angle promotion layer is integrated with a leading edge taper material, which is formed of a magnetic material, to broaden the magnetic flux path between the yoke and the main pole.
摘要翻译：一种制造单极垂直磁记录头的方法，其包含有助于在梯形主极中制造斜角的斜角促进层。斜角促进层由比通常位于主极下方的材料（例如Al 2 O 3）更软的非磁性材料制成。在一个实施例中，斜角促进层形成在轭的端部和空气支承表面（ABS）之间，斜角促进层的顶表面与轭的顶表面基本共面。在其他实施例中，斜角促进层与由磁性材料形成的前缘锥形材料整合，以扩大轭和主极之间的磁通路径。

7. 发明授权

US07804662B2 Perpendicular magnetic recording head including wrap around shield with notched top write gap and method of fabricating the same 有权
标题翻译：垂直磁记录头包括带有凹口顶部写入间隙的屏蔽罩及其制造方法
公开(公告)号：US07804662B2
公开(公告)日：2010-09-28
申请号：US11645390
申请日：2006-12-26
申请人： Tsung Yuan Chen , Hung-Chin Guthrie , Yimin Hsu , Ming Jiang
发明人： Tsung Yuan Chen , Hung-Chin Guthrie , Yimin Hsu , Ming Jiang
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： In a perpendicular recording head, a notch is formed in the top write gap at a location on top of the main pole. A perpendicular head with this notched top write gap structure has less transition curvature and better writability while reducing the adjacent track interference (ATI). Also, the process used to fabricate the head ensures that the trailing edge (writing edge) of the main pole is extremely flat with no corner rounding.
摘要翻译：在垂直记录头中，在主极顶部的位置处，在顶部写入间隙中形成凹口。具有该切口顶部写入间隙结构的垂直头部具有较小的转变曲率和较好的可编写性，同时减小了相邻的轨道干涉（ATI）。此外，用于制造头的过程确保主极的后缘（书写边缘）非常平坦，没有圆角。

8. 发明申请

US20100214693A1 PERPENDICULAR MAGNETIC RECORDING SYSTEM WITH MAGNETIC PRECESSION FOR FAST SWITCHING OF PERPENDICULAR WRITE POLE MAGNETIZATION 有权
标题翻译：具有磁性预测功能的全频磁记录系统，用于快速切换全频写波长磁化
公开(公告)号：US20100214693A1
公开(公告)日：2010-08-26
申请号：US12391242
申请日：2009-02-23
申请人： John Thomas Contreras , Yimin Hsu , Manfred Ernst Schabes , Xinzhi Xing
发明人： John Thomas Contreras , Yimin Hsu , Manfred Ernst Schabes , Xinzhi Xing
IPC分类号： G11B5/127
CPC分类号： G11B5/3123 , G11B5/02 , G11B5/1278 , G11B2005/0005
摘要： A perpendicular magnetic recording system has a write head with a main perpendicular write pole connected to a yoke with first and second electrical coils. The first coil is wrapped around the yoke on one side of the main pole, and the second coil is wrapped around the yoke on the other side of the main pole. The first end of each coil is connected to a respective terminal. The second ends of the two coils are connected together and connected to a common terminal. A lead-time circuit is connected between the common terminal and the first end of one of the coils. Immediately after the direction of write current is switched by the write driver, the lead-time circuit causes the current in one of the coils to lead the current in the other coil. The current displacement between the two coils creates a precession of the magnetic flux reversal, thereby reducing the switching time of the write head.
摘要翻译：垂直磁记录系统具有写头，其具有与第一和第二电线圈的轭连接的主垂直写极。第一线圈缠绕在主极的一侧上的轭架上，并且第二线圈缠绕在主极的另一侧上的轭。每个线圈的第一端连接到相应的端子。两个线圈的第二端连接在一起并连接到公共端子。在公共端子和一个线圈的第一端之间连接有引线时间电路。在写入驱动器切换写入电流的方向之后，引线时间电路使一个线圈中的电流导致另一个线圈中的电流。两个线圈之间的电流位移产生了磁通反转的进动，从而减小了写入头的切换时间。

9. 发明授权

US07593183B2 Magnetic write head design for reducing temperature induced protrusion 有权
标题翻译：磁写头设计用于降低温度引起的突起
公开(公告)号：US07593183B2
公开(公告)日：2009-09-22
申请号：US11411590
申请日：2006-04-25
申请人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin , Katalin Pentek
发明人： Wen-Chien David Hsiao , Yimin Hsu , Edward Hin Pong Lee , Vladimir Nikitin , Katalin Pentek
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/1278 , G11B5/3133 , G11B5/3136
摘要： A magnetic write pole having a structure that prevents thermally induced pole tip protrusion. The write head has a return pole with a magnetic pedestal formed at the air bearing surface (ABS) and a back gap at an end opposite the ABS. An electrically conductive write coil having a plurality of turns passes over the return pole. A fill layer of a material having a low coefficient of thermal expansion, such as alumina is disposed between the coil and the pedestal, and may extend over the top of the coil to the back gap. A photoresist coil insulation layer may be provided between the turns of the coil to insulate the turns of the coil from one another. The photoresist coil insulation layer can also extend to the back gap. A write pole, formed above the return pole and coil is magnetically connected with the back gap layer and return pole by a magnetic shaping layer.
摘要翻译：具有防止热感应极尖突出的结构的磁性写入极。写头具有在空气轴承表面（ABS）形成的磁性基座的返回极和与ABS相对的一端的后部间隙。具有多个匝的导电写入线圈通过返回极。具有低热膨胀系数的材料的填充层（例如氧化铝）设置在线圈和基座之间，并且可以在线圈的顶部延伸到后部间隙。可以在线圈的匝之间设置光致抗蚀剂线圈绝缘层，以将线圈的匝彼此绝缘。光致抗蚀剂线圈绝缘层也可以延伸到后隙。在返回极和线圈之上形成的写极通过磁性成形层与后间隙层和返回极磁连接。

10. 发明申请

US20080313885A1 SHIELD FABRICATION OF MAGNETIC WRITE HEADS 有权
标题翻译：磁性写头的屏蔽制作
公开(公告)号：US20080313885A1
公开(公告)日：2008-12-25
申请号：US11767330
申请日：2007-06-22
申请人： Wen-Chien Hsiao , Yimin Hsu , Vladimir Nikitin
发明人： Wen-Chien Hsiao , Yimin Hsu , Vladimir Nikitin
IPC分类号： G11B5/10 , G11B5/33
CPC分类号： G11B5/11 , G11B33/1493 , Y10T29/49021 , Y10T29/49028 , Y10T29/49032 , Y10T29/49043 , Y10T29/49155 , Y10T29/49165
摘要： Methods are provided for fabricating a write head with a self aligned wrap around shield and a self aligned flared region of a write pole. A flare point and a track width of a write pole may be fabricated using multiple processes. The multiple processes utilize several masking structures to define the track width and the flare point of the write pole. A mask structure is formed to cover a first portion of the write pole. An edge of the mask structure adjacent to an exposed second portion of the write pole defines a flare point of the write pole. Various structures of the write head, including shield gap layers, a wrap around shield and a flared region (e.g., the yoke) of the write pole may be fabricated from the flare point defined by the mask structure.
摘要翻译：提供了用于制造具有围绕屏蔽件的自对准包裹和写入极的自对准扩口区域的写入头的方法。可以使用多个工艺来制造写极点的闪点和轨道宽度。多个过程利用几个掩模结构来定义磁道宽度和写入磁极的扩展点。形成掩模结构以覆盖写入极的第一部分。掩模结构的与写入极的暴露的第二部分相邻的边缘限定了写入极的扩张点。写磁头的各种结构，包括屏蔽间隙层，环绕屏蔽层和写磁极的扩口区域（例如磁轭）可以由掩模结构限定的扩口来制造。

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