公开(公告)号：US20070230045A1

公开(公告)日：2007-10-04

申请号：US11391835

申请日：2006-03-28

申请人： Wen-Chien Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Vladimir Nikitin

发明人： Wen-Chien Hsiao ,  Yimin Hsu ,  Ming Jiang ,  Vladimir Nikitin

IPC分类号： G11B5/147

CPC分类号： G11B5/1278 ,  G11B5/3116

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 includes an inner constant recess portion, and an outer tapered portion. The inner constant recess portion of each wing prevents stray field writing while also preventing magnetic saturation, the outer tapered portions, which taper away from the ABS as they extend laterally outward, further prevent stray field writing by removing the outer corners of the shield away from the ABS.

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。 翼部各自包括内部恒定凹部和外锥形部。 每个翼的内部恒定凹部防止杂散场写入，同时也防止磁饱和，当锥形横向向外延伸时，远离ABS逐渐变细的外锥形部分进一步防止杂散场写入，通过将屏蔽的外角除去 ABS。

公开(公告)号：US07253992B2

公开(公告)日：2007-08-07

申请号：US10981354

申请日：2004-11-04

申请人： Tsung Yuan Chen ,  Yimin Hsu ,  Yinshi Lui

发明人： Tsung Yuan Chen ,  Yimin Hsu ,  Yinshi Lui

IPC分类号： G11B5/147

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 single-pole perpendicular magnetic recording head contains 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： 单极垂直磁记录头包括斜角促进层，其有助于在梯形主极中制造斜角。 斜角促进层由比通常位于主极下方的材料（例如，Al 2 O 3 O 3）更柔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。

公开(公告)号：US07196871B2

公开(公告)日：2007-03-27

申请号：US10671639

申请日：2003-09-26

申请人： Yimin Hsu ,  Quang Le ,  Mason Lamar Williams

发明人： Yimin Hsu ,  Quang Le ,  Mason Lamar Williams

IPC分类号： G11B5/31 ,  G11B5/11

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/1871

摘要： Heads for perpendicular recording using a floating-trailing shield as part of the magnetic circuit for writing magnetic domains in the recording media are described. The floating-trailing shield is separated from the main pole piece by a layer of non-magnetic material along its entire length and the air bearing surface of the floating-trailing shield is substantially larger than that of the main pole piece. The reluctance between the trailing shield and the underlayer in the recording medium is made so low that both are at the same magnetomotive force (or potential), so that no direct connection is needed between the floating-trailing shield and the yoke. When the head is used in a storage system with a magnetic recording medium with a soft underlayer, the floating-trailing shield is, in effect, magnetically shorted to the return pole piece during recording.

摘要翻译： 描述了使用浮动拖尾屏蔽作为用于在记录介质中写入磁畴的磁路的一部分的垂直记录头。 浮动后挡板沿着其整个长度由非磁性材料层与主极片分开，并且浮动后挡板的空气支承表面基本上大于主极片的空气支承表面。 记录介质中的后屏蔽和底层之间的磁阻被制作得很低以致两者都具有相同的磁动势（或电位），使得在浮动后挡板和轭之间不需要直接连接。 当头部用于具有软底层的磁记录介质的存储系统中时，浮动拖尾屏蔽件实际上在记录期间与返回极片磁性短路。

公开(公告)号：US20060245109A1

公开(公告)日：2006-11-02

申请号：US11116796

申请日：2005-04-27

申请人： Yimin Hsu ,  Quang Le ,  Roger Wood

发明人： Yimin Hsu ,  Quang Le ,  Roger Wood

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3143 ,  G11B5/3163 ,  G11B5/3967

摘要： A studded trailing shield design and method for manufacture thereof. The studded trailing shield design maintains critical spacing between the trailing shield and the write pole and also maintains critical spacing between the studded, trailing shield connecting structure, even in a head design having read and write elements that are not aligned with one another.

公开(公告)号：US20050219747A1

公开(公告)日：2005-10-06

申请号：US10815286

申请日：2004-03-31

申请人： Yimin Hsu ,  Quang Le ,  Jui-Lung Li ,  Ian McFadyen ,  James Nix ,  Neil Robertson ,  Mason Williams

发明人： Yimin Hsu ,  Quang Le ,  Jui-Lung Li ,  Ian McFadyen ,  James Nix ,  Neil Robertson ,  Mason Williams

IPC分类号： G11B5/127 ,  G11B5/147 ,  G11B5/187 ,  G11B5/31

CPC分类号： G11B5/3146 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3116

摘要： A magnetic write head for us in perpendicular magnetic recording tapered trailing shield design for improved write flux, and field gradient performance.

摘要翻译： 一种用于我们的磁性写头，用于垂直磁记录锥形后屏蔽设计，用于改善写通量和场梯度性能。

公开(公告)号：US20110134567A1

公开(公告)日：2011-06-09

申请号：US12634456

申请日：2009-12-09

申请人： Yingjian Chen ,  Liubo Hong ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Katalin Pentek

发明人： Yingjian Chen ,  Liubo Hong ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Katalin Pentek

IPC分类号： G11B5/10

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315

摘要： A magnetic write head having a write pole with a tapered trailing edge. The write head has a non-magnetic step layer and a non-magnetic bump formed on the front edge of the magnetic step layer. A non-magnetic trailing gap layer is formed over the tapered trailing edge of the write pole and over the non-magnetic bump and over the non-magnetic step layer. A magnetic trailing shield is formed over at least a portion of the non-magnetic gap layer.

摘要翻译： 一种具有具有锥形后缘的写极的磁写头。 写头具有形成在磁性阶梯层的前边缘上的非磁性阶梯层和非磁性凸块。 非磁性拖尾间隙层形成在写磁极的锥形后缘和非磁性凸块之上以及非磁性阶梯层之上。 在非磁隙层的至少一部分上形成有磁性后屏蔽。

公开(公告)号：US07821736B2

公开(公告)日：2010-10-26

申请号：US11399548

申请日：2006-04-06

申请人： Xiaodong Che ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin

发明人： Xiaodong Che ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/3116 ,  G11B5/3146

摘要： Write elements are discussed having a write pole and an associated trailing shield. A leading side of the trailing shield faces a trailing side of the write pole. The leading side of the trailing shield has a shape such that a center portion of the leading side has less of a separation from the trailing side of the write pole than track edge portions of the leading side of the trailing shield. An exemplary shape the leading side of the trailing shield may be a convex shape when viewed from the ABS. The shape of the leading side of the trailing shield causes the trailing shield to shunt less of the magnetic field from the trailing side of the write pole at the track edges so that the written transition at the track edge will not lag behind the written transition at the track center allowing for a straighter transition.

摘要翻译： 讨论了具有写极点和相关联的后屏蔽的写元件。 后挡板的前端面向写极的后侧。 后挡板的前侧具有这样的形状，使得前侧的中心部分比后挡板的前侧的轨道边缘部分具有比写入极的后侧更小的间隔。 当从ABS观察时，后护罩的前侧的示例性形状可以是凸形。 尾部屏蔽的前端的形状使得后屏蔽件在轨道边缘处从写入极的后侧分流较少的磁场，使得在轨道边缘处的写入的转变不会滞后于在 轨道中心允许更直接的过渡。

公开(公告)号：US20080273268A1

公开(公告)日：2008-11-06

申请号：US11743150

申请日：2007-05-02

申请人： Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

发明人： Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

IPC分类号： G11B5/147 ,  G11B5/60 ,  G11B5/10

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3123 ,  G11B5/3146 ,  G11B5/315

摘要： A perpendicular magnetic recording write head has a main pole and return poles that are substantially coplanar. The write head includes a main pole, two return poles and a connecting stud that are all formed as a single layer in a single deposition and patterning step. The coplanar main and return poles lie in a plane parallel to the cross-track direction. The two return poles are thus spaced from the main pole in the cross-track direction. The main pole includes a write pole connected to it but lying in a plane spaced in the along-the-track direction from the plane of the main pole. The write head includes a helical coil wrapped around the main pole. The magnetic flux path is from the write pole to the disk recording layer in a data track aligned with the write pole, to the disk underlayer beneath the recording layer, through the underlayer to data tracks spaced cross-track from the data track aligned with the write pole, and back through the return poles.

摘要翻译： 垂直磁记录写头具有基本上共面的主极和返回极。 写头包括在单个沉积和图案化步骤中都形成为单层的主极，两个返回极和连接柱。 共平面的主极和返回极位于平行于交叉轨道方向的平面中。 因此，两个返回极在交叉轨道方向上与主极间隔开。 主极包括连接到其上的写入极，但是位于沿主轨方向与主极平面间隔开的平面中。 写头包括缠绕在主极上的螺旋线圈。 磁通路径是从记录磁极对准的数据磁道中的写入磁极到磁盘记录层，到记录层下方的磁盘底层，通过底层到从与数据磁道对准的数据磁道间隔开的数据磁道 写柱，并通过返回杆返回。

公开(公告)号：US20080002309A1

公开(公告)日：2008-01-03

申请号：US11899513

申请日：2007-09-05

申请人： Yimin Hsu ,  Jyh-Shuey Lo

发明人： Yimin Hsu ,  Jyh-Shuey Lo

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A magnetic head is disclosed which includes a hexagonal write head pole tip, having a P3 pole tip having a rectangular portion in which the track width is established, and a beveled portion having beveled wall portions. Also disclosed is a disk drive having a magnetic head having a hexagonal pole tip.

摘要翻译： 公开了一种磁头，其包括六边形写头磁极尖端，具有具有矩形部分的轨道宽度建立的P3极尖端和具有斜壁部分的斜面部分。 还公开了一种具有具有六角柱顶端的磁头的磁盘驱动器。

公开(公告)号：US07310205B2

公开(公告)日：2007-12-18

申请号：US10955691

申请日：2004-09-30

申请人： Yimin Hsu ,  Chie Ching Poon ,  Timothy Carl Strand

发明人： Yimin Hsu ,  Chie Ching Poon ,  Timothy Carl Strand

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A magnetic head including a media heating device including an optical cavity resonator that produces a high intensity near-field optical beam adjacent to the write pole. Optical energy is coupled into the resonant cavity through a waveguide that is placed proximate the cavity, and optical energy is coupled out of the cavity through an aperture that is placed proximate an antinode or post within the cavity. The write pole tip may serve as the post in certain embodiments. The media heating device is preferably fabricated between the first and second magnetic pole layers of a perpendicular magnetic head and close to the ABS surface of the head. An alternative embodiment may include a near field aperture disposed between the resonant cavity and the ABS.

摘要翻译： 一种磁头，包括介质加热装置，该介质加热装置包括产生与写入极相邻的高强度近场光束的光腔谐振器。 光能通过放置在腔附近的波导耦合到谐振腔中，并且光能通过放置在腔内的波腹或柱附近的孔耦合到空腔外。 在某些实施例中，写极尖可以用作柱。 介质加热装置优选地制造在垂直磁头的第一和第二磁极层之间并且靠近头部的ABS表面。 替代实施例可以包括设置在谐振腔和ABS之间的近场孔。