公开(公告)号：US20100326819A1

公开(公告)日：2010-12-30

申请号：US12490480

申请日：2009-06-24

申请人： Jeffrey S. Lille ,  Neil Leslie Robertson

发明人： Jeffrey S. Lille ,  Neil Leslie Robertson

IPC分类号： B44C1/22

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/746 ,  G11B5/855

摘要： A method for making a patterned-media magnetic recording disk uses nano-imprint lithography (NIL) for patterning a resist layer over the magnetic recording layer. A hard mask layer is located above the magnetic recording layer and an etch stop layer is located above the hard mask layer and below the resist layer. Residual resist material in the recesses of the patterned resist layer is removed by reactive ion etching (RIE) to expose the underlying etch stop layer. The etch stop material in the recesses is then removed by RIE to expose regions of the hard mask layer. A reactive ion milling (RIM) process removes the exposed hard mask material. The RIM process causes no undercutting of the unexposed hard mask material, which allows the very small critical dimensions of the patterned-media disk to be reliably achieved when ion milling is subsequently performed through the hard mask that has been patterned by the RIM process.

摘要翻译： 用于制造图案介质磁记录盘的方法使用纳米压印光刻（NIL）来在磁记录层上图形化抗蚀剂层。 硬掩模层位于磁记录层上方，并且蚀刻停止层位于硬掩模层之上和抗蚀剂层下方。 通过反应离子蚀刻（RIE）去除图案化抗蚀剂层的凹陷中的残留抗蚀剂材料以暴露下面的蚀刻停止层。 然后通过RIE去除凹槽中的蚀刻停止材料以暴露硬掩模层的区域。 反应离子研磨（RIM）工艺去除了暴露的硬掩模材料。 RIM工艺不会导致未曝光的硬掩模材料的底切，这允许当通过已经通过RIM工艺图案化的硬掩模进行离子铣削时，可靠地实现图案化介质盘的非常小的临界尺寸。

公开(公告)号：US20100091407A1

公开(公告)日：2010-04-15

申请号：US12646879

申请日：2009-12-23

申请人： Christian Rene Bonhote ,  Thomas Dudley Boone, JR. ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

发明人： Christian Rene Bonhote ,  Thomas Dudley Boone, JR. ,  Quang Le ,  Jui-Lung Li ,  Jeffrey S. Lille ,  Scott Arthur MacDonald ,  Neil Leslie Robertson ,  Xhavin Sinha ,  Petrus Antonius Van Der Heijden

IPC分类号： G11B5/60 ,  G11B5/127

CPC分类号： G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3166 ,  G11B5/3169

摘要： A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure that is recessed from the ABS by a distance that is greater than that of the magnetic shell portion. A magnetic shield is formed over the magnetic shell and non-magnetic spacer.

摘要翻译： 一种用于数据记录的磁写头，具有限定二次闪光点的阶梯状磁性壳结构的磁性写入极。 由磁性壳体部分限定的次级火炬点可以相对于与写入磁头的空气轴承表面（ABS）的距离比在主极结构上光刻的传统闪光点更加严格地控制。 这使得使用当前可用的工具和光刻技术可以使写入头的有效喇叭点移动得更接近ABS。 写头还包括形成在磁性壳结构上的非磁性间隔层，其从ABS凹陷的距离大于磁性壳部分的距离。 在磁性壳体和非磁性间隔物上形成磁屏蔽。

公开(公告)号：US20080141522A1

公开(公告)日：2008-06-19

申请号：US11611829

申请日：2006-12-15

申请人： Amanda Baer ,  Vladimir Nikitin ,  Aron Pentek ,  Neil Leslie Robertson

发明人： Amanda Baer ,  Vladimir Nikitin ,  Aron Pentek ,  Neil Leslie Robertson

IPC分类号： G11B5/127 ,  B05D5/12 ,  H04R31/00

CPC分类号： G11B5/3166 ,  G11B5/102 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/3169 ,  G11B5/3173 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： An optical lapping guide for determining an amount of lapping performed on a row of sliders in a process for manufacturing sliders for magnetic data recording. The optical lapping guide is constructed with a front edge that is at an angle with respect to an air bearing surface plane ABS plane, such that a portion of the lapping guides is in front of the ABS and portion of the lapping guide is behind the ABS. As lapping progresses, an increasing amount of the lapping guide will be exposed at the ABS and visible for inspection. Therefore, after a lapping process has been performed, the optical lapping guide can be inspected to determine the amount of material removed by lapping. The greater the amount of the lapping guide that is exposed and visible, the greater the amount of material removed by lapping.

摘要翻译： 光学研磨引导件，用于确定在用于制造用于磁数据记录的滑块的过程中对一排滑块执行的研磨量。 光学研磨引导件的前边缘相对于空气轴承表面平面ABS平面成一定角度，使得研磨导轨的一部分在ABS的前面，研磨导轨的一部分在ABS后面 。 随着研磨的进行，越来越多的研磨导轨将暴露在ABS处并可见以供检查。 因此，在进行研磨处理之后，可以检查光学研磨导向件以确定通过研磨去除的材料的量。 暴露和可见的研磨导轨的量越大，通过研磨去除的材料量就越大。

公开(公告)号：US20080117546A1

公开(公告)日：2008-05-22

申请号：US11560761

申请日：2006-11-16

申请人： Quang Le ,  James L. Nix ,  Neil Leslie Robertson ,  Neil Smith ,  Petrus Antonius VanDerHeijden

发明人： Quang Le ,  James L. Nix ,  Neil Leslie Robertson ,  Neil Smith ,  Petrus Antonius VanDerHeijden

IPC分类号： G11B5/127

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

摘要： A perpendicular magnetic recording write head has a flux conductor in contact with the write pole. The flux conductor is substantially wider than the write pole tip in the cross-track direction and has a blunt end that is recessed from the pole tip end. The region of the flux conductor where its blunt end is in contact with the pole tip is the “choke” point for the write pole, i.e., the point where the flux density is highest. The flux conductor enables the write pole to be made with no flare, or with a flare angle and throat height with a much wider tolerance, which substantially simplifies the manufacturing process. The write head may have a trailing shield and side shields that substantially surround the write pole tip and remove stray fields that may be produced by the flux conductor, so that regions of the recording layer other than the track being written are not adversely affected.

摘要翻译： 垂直磁记录写头具有与写极接触的磁通导体。 磁通导体在横向磁道方向上基本上比写入磁极尖端更宽，并且具有从磁极末端凹进的钝端。 其钝端与极尖接触的磁通导体的区域是写极的“扼流”点，即磁通密度最高的点。 磁通导体使写磁极能够制成没有耀斑，或具有更宽公差的喇叭角和喉部高度，这大大简化了制造过程。 写头可以具有基本上围绕写磁极尖端的后屏蔽和侧屏蔽，并且去除可能由磁通导体产生的杂散场，使得除了正在写入的磁道之外的记录层的区域不受不利影响。

公开(公告)号：US07367112B2

公开(公告)日：2008-05-06

申请号：US11354139

申请日：2006-02-14

申请人： James L. Nix ,  Neil Leslie Robertson ,  Mason Lamar Williams

发明人： James L. Nix ,  Neil Leslie Robertson ,  Mason Lamar Williams

IPC分类号： G11B5/193

CPC分类号： G11B5/3163 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315 ,  Y10T29/49021 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method is provided for fabricating a head for perpendicular recording with self-aligning side shields. The voids where the side shields will be formed are milled into the layer of material for the pole tip to achieve self-alignment. A mask is patterned with openings defining initial shape of the pole piece tip nearest the air-bearing surface including the width and the point at which the pole tip widens out. A film of soft magnetic material to form the side shields is deposited over the wafer. A chemical-mechanical-polishing process is preferably used to remove the mask and the material deposited on it. A new mask is patterned over the predetermined area for the final shape of the pole tip and the side shields. The excess side shield material and pole tip material outside of the mask is then removed.

摘要翻译： 提供一种用于制造用于具有自对准侧屏蔽件的垂直记录头部的方法。 将形成侧面屏蔽的空隙铣成用于极尖的材料层以实现自对准。 掩模被图案化，其开口限定最靠近空气轴承表面的极片末端的初始形状，包括宽度和极尖扩大的点。 用于形成侧面屏蔽的软磁性材料薄膜沉积在晶片上。 优选使用化学机械抛光工艺来去除掩模和沉积在其上的材料。 在预定区域上形成新的掩模，用于极尖和侧屏的最终形状。 然后除去掩模外部的多余的侧屏蔽材料和极尖材料。

公开(公告)号：US07001499B2

公开(公告)日：2006-02-21

申请号：US10053785

申请日：2002-01-18

申请人： Mike Ming Yu Chen ,  Thomas Edward Dinan ,  April Hixson-Goldsmith ,  Murali Ramasubramanian ,  Neil Leslie Robertson

发明人： Mike Ming Yu Chen ,  Thomas Edward Dinan ,  April Hixson-Goldsmith ,  Murali Ramasubramanian ,  Neil Leslie Robertson

IPC分类号： C25D5/50

CPC分类号： G11B5/3163 ,  C25D3/562 ,  C25D5/50 ,  H01F10/14 ,  H01F10/26 ,  H01F41/26

摘要： A process for electroplating and annealing thin-films of nickel-iron alloys having from 63% to 81% iron content by weight to produce pole pieces having saturation flux density (BS) in the range from 1.9 to 2.3 T (19 to 23 kG) with acceptable magnetic anisotropy and magnetostriction and a coercivity (HC) no higher than 160 A/m (2 Oe). The desired alloy layer properties, including small crystal size and minimal impurity inclusions, can be produced by including higher relative levels of Fe++ ions in the electroplating bath while holding the bath at a lower temperature while plating from a suitable seed layer. The resulting alloy layer adopts a small crystal size (BCC) without significant inclusion of impurities, which advantageously permits annealing to an acceptable HC while retaining the high BS desired.

摘要翻译： 电镀和退火铁含量为63％至81％的镍铁合金薄膜的方法，以产生具有饱和磁通密度（B S S S S）的范围在1.9至 2.3 T（19〜23kG）具有可接受的磁各向异性和磁致伸缩，矫顽力（H C C）不高于160A / m（2Oe）。 包括小晶体尺寸和最小杂质夹杂物在内的期望的合金层性能可以通过在电镀浴中包含更高的相对水平的Fe ++离子而制备，同时将浴保持在较低温度，同时从 合适的种子层。 所得到的合金层采用小晶粒尺寸（BCC），而不显着地包含杂质，这有利地允许退火到可接受的H C，同时保持所需的高B S S S。

公开(公告)号：US06664026B2

公开(公告)日：2003-12-16

申请号：US09815540

申请日：2001-03-22

申请人： Son Van Nguyen ,  Neil Leslie Robertson ,  Thomas Edward Dinan ,  Thao Duc Pham

发明人： Son Van Nguyen ,  Neil Leslie Robertson ,  Thomas Edward Dinan ,  Thao Duc Pham

IPC分类号： G03F700

CPC分类号： G03F7/094 ,  G03F7/40 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/3163 ,  H01L21/0332 ,  H01L21/042

摘要： An etch barrier to be used in a photolithograph process is disclosed. A silicon rich etch barrier is deposited on a substrate using a low energy deposition technique. A diamond like carbon layer is deposited on the silicon rich etch barrier. Photoresist is then placed on this etch barrier DLC combination. To form photolithographic features, successive steps of oxygen and flourine reactive ion etching is used.

公开(公告)号：US06538857B1

公开(公告)日：2003-03-25

申请号：US09662247

申请日：2000-09-14

申请人： Saad Doss ,  Glen Adam Garfunkel ,  Edward Hin Pong Lee ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Andrew Ching Tam

发明人： Saad Doss ,  Glen Adam Garfunkel ,  Edward Hin Pong Lee ,  Chie Ching Poon ,  Neil Leslie Robertson ,  Andrew Ching Tam

IPC分类号： G11B540

CPC分类号： G11B5/4853 ,  G11B5/3106 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/4806 ,  G11B2005/0016

摘要： A read head is provided with an N-cycle switch for sequentially shorting and unshorting a sense current circuit of a read head so that the read head will be protected from electrostatic discharges (ESDs) by shorting when the read head is not being tested and unshorted during tests of the read head. The shorting and unshorting switches, which are mounted on or in a slider carrying the read head, are activated by a laser beam.

摘要翻译： 读头设置有N周期开关，用于顺序地短路和取消点读头的感测电流电路，使得当读头不被测试且未被排序时，通过短路来保护读头免受静电放电（ESD）的影响 在读头测试期间。 安装在携带读取头的滑块上或其中的短路和非启动开关由激光束激活。

公开(公告)号：US06330128B1

公开(公告)日：2001-12-11

申请号：US09299542

申请日：1999-04-26

申请人： Thomas Young Chang ,  Glen Adam Garfunkel ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Samuel Wonder Yuan

发明人： Thomas Young Chang ,  Glen Adam Garfunkel ,  Edward Hin Pong Lee ,  Neil Leslie Robertson ,  Samuel Wonder Yuan

IPC分类号： G11B5147

CPC分类号： G11B5/3103 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3146 ,  G11B5/3967 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

摘要： A magnetic head assembly has an open yoke type write head constructed on top of a read head so that the write head can be constructed with a very narrow track width without restraint by the requirements of the read head. The write head has first and second pole piece portions wherein the second pole piece portion has separate front and back layer portions. A coil layer is wrapped around only the first pole piece portion and the back layer portion so that the front layer portion can be constructed separately to provide a narrow track width. Further, in a preferred embodiment the front layer portion has a reduced thickness and a higher magnetic moment than the thickness and magnetic moment of the first pole piece portion and the back layer portion. Still further, in a preferred embodiment the first pole piece portion and the back layer portion are planar due to planarization of underlying layers.

摘要翻译： 磁头组件具有构造在读头的顶部上的开式轭型写入头，使得写入头可以被构造成具有非常窄的轨道宽度，而不受读取头的要求的限制。 写头具有第一和第二极靴部分，其中第二极靴部分具有分离的前部和后部部分。 线圈层仅缠绕在第一极靴部分和背层部分上，使得前层部分可以分开构造以提供窄的轨道宽度。 此外，在优选实施例中，前层部分具有比第一极靴部分和背部部分的厚度和磁矩更小的厚度和更高的磁矩。 此外，在优选实施例中，由于下层的平坦化，第一极片部分和背层部分是平面的。

公开(公告)号：US6162305A

公开(公告)日：2000-12-19

申请号：US344253

申请日：1999-06-25

申请人： Richard Hsiao ,  Daniele Mauri ,  Neil Leslie Robertson

发明人： Richard Hsiao ,  Daniele Mauri ,  Neil Leslie Robertson

IPC分类号： G11B5/012 ,  G11B5/31 ,  G11B5/33 ,  G11B5/39 ,  G11B5/40 ,  C23C8/04

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3133 ,  G11B5/332 ,  G11B5/3903 ,  G11B5/3967 ,  G11B5/40 ,  G11B2005/3996 ,  Y10S148/117 ,  Y10T29/49032

摘要： A method is provided for providing extra insulation between lead layers and first and second shield layers of a read head so as to prevent electrical shorting therebetween. A sensor layer is partially formed with a capping layer of a first oxidizable metallic layer. A lead layer is formed with a second oxidizable metallic capping layer thereon. A rear edge of the partially completed sensor is then formed followed by formation of an insulation layer which seals the rear edge. The wafer, upon which the components are constructed, is then subjected to an oxygen-based plasma which oxidizes the oxidizable layers with the second oxidizable metallic layers oxidizing at a faster rate than the first oxidizable metallic layer. The second oxidized layer then provides the desired extra insulation between the lead layers and the second shield layer. The read head produced by the method includes a sensor layer and first and second lead layers. A first metal oxide layer is on the sensor layer and a sensor layer and a second metal oxide layer is on each of the first and second lead layers. The sensor layer, the first and second lead layers and the first and second metal oxide layers are located between first and second gap layers and the first and second gap layers are located between first and second shield layers.

摘要翻译： 提供了一种用于在引线层与读取头的第一和第二屏蔽层之间提供额外的绝缘的方法，以防止它们之间的电短路。 传感器层部分地形成有第一可氧化金属层的覆盖层。 在其上形成有第二可氧化金属覆盖层的引线层。 然后形成部分完成的传感器的后边缘，然后形成密封后边缘的绝缘层。 然后，将构成部件的晶片经受氧基等离子体，其氧化可氧化层，第二可氧化金属层以比第一可氧化金属层更快的速率氧化。 然后，第二氧化层在引线层和第二屏蔽层之间提供所需的额外绝缘。 通过该方法制造的读取头包括传感器层和第一和第二引线层。 第一金属氧化物层位于传感器层上，传感器层和第二金属氧化物层位于第一和第二引线层中的每一个上。 传感器层，第一和第二引线层以及第一和第二金属氧化物层位于第一和第二间隙层之间，并且第一和第二间隙层位于第一和第二屏蔽层之间。