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：US07578049B2

公开(公告)日：2009-08-25

申请号：US11525788

申请日：2006-09-21

申请人： Yimin Hsu ,  Vladimir Nikitin ,  Aron Pentek

发明人： Yimin Hsu ,  Vladimir Nikitin ,  Aron Pentek

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/1278 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for manufacturing a write pole for a perpendicular magnetic write head. The method includes forming a mask structure over a full film layer of magnetic write pole material. A layer of hard mask material such as conformally deposited alumina is then deposited full film over the mask and write pole material. An ion mill, such as in an Ar or CHF3 chemistry is then used to preferentially remove horizontally disposed portions of the alumina layer (hard mask layer), thereby forming vertical hard mask walls at the sides of the mask structure. An ion mill is then used to form the write pole, with the alumna side walls providing excellent masking for forming well defined write pole edges. A relatively gentle clean up process can then be performed to remove the remaining mask material and side walls.

摘要翻译： 一种用于制造用于垂直磁写头的写极的方法。 该方法包括在磁性写入磁极材料的全部薄膜层上形成掩模结构。 然后将诸如保形沉积氧化铝的硬掩模材料层沉积在掩模上并写入极材料。 然后使用诸如Ar或CHF 3化学中的离子磨机来优先除去氧化铝层（硬掩模层）的水平设置的部分，从而在掩模结构的侧面形成垂直的硬掩模壁。 然后使用离子磨机形成写柱，校准侧壁为形成良好定义的写极边缘提供了优​​异的掩模。 然后可以执行相对温和的清理过程以除去剩余的掩模材料和侧壁。

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。

公开(公告)号：US20070247751A1

公开(公告)日：2007-10-25

申请号：US11412017

申请日：2006-04-25

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

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

IPC分类号： G11B5/147

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

摘要： A magnetic structure for use in a magnetic head for avoiding wide angle track erasure and other forms of adjacent track interference. The magnetic structure includes a trailing shield having a specially configured back edge opposite the air bearing surface ABS. The magnetic shield has a shallow substantially constant throat height at a center portion. Then, the back edge of the shield tapers back away from the ABS in first and second intermediate portion located at either side of the center portion. These intermediate portions lead to first and second outer portions that have substantially constant throat heights that are larger than the throat height at the center region. The throat height at each of the laterally outer portions can be 1.5 to 5 times the throat height of the center portion. This configuration, chokes off stray fields that might be picked up by the outer portions of the shield preventing excessive magnetic flux from reaching the central portion of the shield where it might affect writing. In addition, the limited throat height of the outer portion (ie. the back edge of the outer portions does not keep tapering back away from the ABS) prevents the outer portions from picking up too much stray magnetic field, while also ensuring that sufficient magnetic material will be present to absorb desired magnetic field from the write pole during use.

摘要翻译： 用于磁头的磁结构，用于避免广角跟踪擦除和其他形式的相邻轨道干扰。 磁性结构包括后挡板，其具有与空气轴承表面ABS相对的特殊配置的后边缘。 磁屏蔽件在中心部分具有浅实质上恒定的喉部高度。 然后，屏蔽件的后边缘在位于中心部分两侧的第一和第二中间部分中从ABS逐渐变细。 这些中间部分导致第一和第二外部部分具有大于喉部高度在中心区域处大致恒定的喉部高度。 每个横向外部部分的喉部高度可以是中心部分的喉部高度的1.5至5倍。 这种构造可以消除可能由屏蔽外部拾取的杂散场，防止过多的磁通量到达屏蔽的中心部分，从而可能影响写入。 此外，外部部分的限制喉部高度（即，外部部分的后边缘不保持从ABS退回）防止外部部分拾取太多的杂散磁场，同时还确保足够的磁 将存在材料以在使用期间从写入极吸收期望的磁场。

公开(公告)号：US20070247750A1

公开(公告)日：2007-10-25

申请号：US11411590

申请日：2006-04-25

申请人： Wen-Chien Hsiao ,  Yimin Hsu ,  Edward Lee ,  Vladimir Nikitin ,  Katalin Pentek

发明人： Wen-Chien Hsiao ,  Yimin Hsu ,  Edward Lee ,  Vladimir Nikitin ,  Katalin Pentek

IPC分类号： 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。

公开(公告)号：US20070211384A1

公开(公告)日：2007-09-13

申请号：US11744054

申请日：2007-05-03

申请人： Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin ,  Aron Pentek ,  Yi Zheng

发明人： Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/147

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 writ 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隙与写极的前缘分离的后部，并且具有通过第一和第二非隔离部分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。

公开(公告)号：US20070115584A1

公开(公告)日：2007-05-24

申请号：US11286077

申请日：2005-11-23

申请人： Hamid Balamane ,  Yimin Hsu ,  Aron Pentek ,  Yi Zheng

发明人： Hamid Balamane ,  Yimin Hsu ,  Aron Pentek ,  Yi Zheng

IPC分类号： G11B5/147

CPC分类号： G11B5/3163 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315 ,  Y10T29/49021

摘要： A perpendicular write head having a wrap around trailing shield for reducing stray field writing and adjacent track interference. A method for constructing such a write head allows for excellent control of side shield gap thickness and trailing shield gap thickness, and allows the ratio of side gap to trailing gap thicknesses to be maintained at about two to one as desired. The method includes depositing forming a write pole by constructing a mask which may include a bi-layer hard mask, and then ion milling to form the write pole. Once the write pole has been formed, a layer of alumina or some other non-magnetic material can be conformally deposited. A reactive ion mill (RIM) can be performed to open up the top of the write pole (remove the horizontally disposed portions of the alumina layer). Then, a second layer of alumina or some other non-magnetic material can be deposited, and the write pole can be plated. The thickness of the side shield gaps is defined by the sum of the final thicknesses of the first and second alumina layers, while the thickness of the first magnetic layer defines the thickness of the trailing shield gap.

摘要翻译： 垂直写头，其具有围绕后屏蔽的卷绕，用于减少杂散场写入和相邻轨道干涉。 用于构造这样的写头的方法允许对侧屏蔽间隙厚度和后屏蔽间隙厚度的优良控制，并且允许侧间隙与后间隙厚度的比率根据需要保持在大约二对一。 该方法包括通过构成可包括双层硬掩模的掩模沉积形成写入极，然后进行离子铣削以形成写入极。 一旦形成了写极，就可以共形沉积一层氧化铝或其它非磁性材料。 可以执行反应离子磨（RIM）以打开写柱的顶部（去除氧化铝层的水平放置的部分）。 然后，可以沉积第二层氧化铝或一些其它非磁性材料，并且可以对写入极进行电镀。 侧屏蔽间隙的厚度由第一和第二氧化铝层的最终厚度之和限定，而第一磁性层的厚度限定了后屏蔽间隙的厚度。