公开(公告)号：US20100159154A1

公开(公告)日：2010-06-24

申请号：US12341866

申请日：2008-12-22

申请人： Amanda Baer ,  Wen-Chien David Hsiao ,  John I. Kim ,  Vladimir Nikitin ,  Trevor W. Olson ,  John Bruce Piggott, JR. ,  Yuan Yao

发明人： Amanda Baer ,  Wen-Chien David Hsiao ,  John I. Kim ,  Vladimir Nikitin ,  Trevor W. Olson ,  John Bruce Piggott, JR. ,  Yuan Yao

IPC分类号： G11B5/127

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

摘要： A method in one embodiment includes forming a layer of a nonmagnetic material above an upper surface of a substrate; forming a resist structure above the layer of nonmagnetic material, wherein the resist structure has an undercut; removing a portion of the layer of nonmagnetic material not covered by the resist structure; depositing a layer of magnetic material above the substrate adjacent a remaining portion of the layer of nonmagnetic material such that at least portions of the layer of magnetic material and the remaining portion of the layer of nonmagnetic material lie in a common plane; removing the resist structure; and forming a write pole above the layer of magnetic material and the remaining portion of the layer of nonmagnetic material. Additional methods are also presented.

摘要翻译： 一个实施例中的方法包括在衬底的上表面上方形成非磁性材料层; 在非磁性材料层之上形成抗蚀剂结构，其中抗蚀剂结构具有底切; 去除未被抗蚀剂结构覆盖的非磁性材料层的一部分; 在所述基板的上方邻近所述非磁性材料层的剩余部分沉积一层磁性材料，使得所述磁性材料层和所述非磁性材料层的剩余部分的至少部分位于公共平面中; 去除抗蚀剂结构; 以及在磁性材料层和非磁性材料层的剩余部分之上形成写入极。 还介绍了其他方法。

公开(公告)号：US07729084B2

公开(公告)日：2010-06-01

申请号：US11644446

申请日：2006-12-22

申请人： Daniel Wayne Bedell ,  David Patrick Druist ,  Edward Hin Pong Lee ,  Jennifer Ai-Ming Loo ,  Vladimir Nikitin

发明人： Daniel Wayne Bedell ,  David Patrick Druist ,  Edward Hin Pong Lee ,  Jennifer Ai-Ming Loo ,  Vladimir Nikitin

IPC分类号： G11B5/17

CPC分类号： G11B5/3123 ,  Y10T29/49043 ,  Y10T29/4906 ,  Y10T29/49064

摘要： In one embodiment and method of the present invention, a coil of a write head is created by forming a P1 pedestal layer and a back gap layer and further forming a coil pattern consistent with the coil to be formed and insulator spacers dispersed in the coil pattern, using a non-damascene process, thereafter the coil is formed by plating using a damascene process.

摘要翻译： 在本发明的一个实施例和方法中，通过形成P1基座层和后间隙层，并且进一步形成与要形成的线圈一致的线圈图案并且将绝缘体间隔物分散在线圈图案中，形成写入头的线圈 ，使用非镶嵌工艺，然后通过使用镶嵌工艺电镀形成线圈。

公开(公告)号：US07652853B2

公开(公告)日：2010-01-26

申请号：US11191767

申请日：2005-07-28

申请人： Gity Samadi Hosseinali ,  Vladimir Nikitin ,  Robert Langland Smith

发明人： Gity Samadi Hosseinali ,  Vladimir Nikitin ,  Robert Langland Smith

IPC分类号： G11B5/33

CPC分类号： G11B5/3116 ,  G11B5/115 ,  G11B5/3136 ,  G11B5/3912 ,  G11B5/3967

摘要： A magnetic data recording head having reduced thermally induced shield (pole tip) protrusion. The head includes a magnetoresistive sensor sandwiched between first and second shield. The shields have a substantially reduced thickness. The distance between the shields defines a gap (G) and the shields each have a thickness (ST) such that the ratio ST/G is greater than 2, but less than 50. More preferably the ratio ST/G is greater than 2, but less than 20, and yet more preferably, the ratio ST/G is greater than 2 and less than 10.

摘要翻译： 具有减少的热感应屏蔽（极尖）突起的磁数据记录头。 头包括夹在第一和第二屏蔽之间的磁阻传感器。 屏蔽件具有大大减小的厚度。 屏蔽之间的距离限定了间隙（G），并且屏蔽件各自具有厚度（ST），使得比率ST / G大于2但小于50.更优选地，比率ST / G大于2， 但小于20，还更优选地，比率ST / G大于2且小于10。

公开(公告)号：US07639453B2

公开(公告)日：2009-12-29

申请号：US11497202

申请日：2006-08-01

申请人： Hardayal Singh Gill ,  Kuok San Ho ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

发明人： Hardayal Singh Gill ,  Kuok San Ho ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Edward Hin Pong Lee ,  Vladimir Nikitin

IPC分类号： G11B5/127

CPC分类号： G11B5/3123 ,  G11B5/1278 ,  G11B5/3967

摘要： A magnetic head structure for use in perpendicular magnetic recording. The magnetic head includes a magnetic write head having a return pole with a magnetic shunt structure extending from the back end opposite the ABS. The magnetic shunt structure prevents magnetic field from the write coil from reaching and affecting the read head. More specifically the shunt structure prevents magnetic field from the portion of the write coil beyond the back gap (as measured from the ABS) from magnetizing a magnetic shield of the read head. The shunt structure is also configured so as to avoid stray field writing. The size and shape of the shunt structure is therefore, limited to avoid attracting stray fields that might cause such stray field writing.

摘要翻译： 用于垂直磁记录的磁头结构。 磁头包括具有从与ABS相对的后端延伸的磁分路结构的返回极的磁写头。 磁分路结构防止来自写入线圈的磁场到达并影响读取头。 更具体地说，分流结构防止来自写入线圈的部分的磁场超过后隙（从ABS测量）来磁化读取磁头的磁屏蔽。 分流结构也被配置为避免杂散场写入。 因此，分流结构的尺寸和形状受到限制，以避免吸引可能导致这种杂散场写入的杂散场。

公开(公告)号：US20090152235A1

公开(公告)日：2009-06-18

申请号：US11956292

申请日：2007-12-13

申请人： Wen-Chien David Hsiao ,  Hieu Lam ,  Vladimir Nikitin ,  Sue Siyang Zhang ,  Yi Zheng

发明人： Wen-Chien David Hsiao ,  Hieu Lam ,  Vladimir Nikitin ,  Sue Siyang Zhang ,  Yi Zheng

IPC分类号： B44C1/22

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

摘要： A method for manufacturing a magnetic write head having a stepped trailing shield. The stepped trailing shield is formed by forming a non-magnetic bump over a write pole prior to electroplating a wrap-around magnetic shield. The method allows the location of the front edge of the bump relative to the back edge of the wrap-around shield to be monitored by measuring the electrical resistance of an electrical lapping guide formed concurrently with these features. This concurrent formation of a lapping guide can be used to define the relative location of other features as well, such as the location of a back edge of a wrap-around shield relative to a flare point of a write pole.

摘要翻译： 一种用于制造具有阶梯式后挡板的磁写头的方法。 在电镀环绕磁屏蔽之前，通过在写入极上形成非磁性凸块来形成阶梯式后屏蔽。 该方法允许通过测量与这些特征同时形成的电研磨引导件的电阻来监测凸块的前边缘相对于环绕护罩的后边缘的位置。 研磨引导件的这种同时形成也可以用于限定其它特征的相对位置，例如环绕屏蔽件的后边缘相对于写入极点的扩张点的位置。

公开(公告)号：US07505226B2

公开(公告)日：2009-03-17

申请号：US10857286

申请日：2004-05-28

申请人： Wen-Chien David Hsiao ,  Vladimir Nikitin

发明人： Wen-Chien David Hsiao ,  Vladimir Nikitin

IPC分类号： G11B5/127

CPC分类号： G11B5/3116

摘要： A method and apparatus for providing a pole tip structure having a shape for preventing over saturation of the pole tip structure is disclosed. A cap layer having a tail structure for reducing the saturation of the cap layer is formed over the pole structure. The tail structure includes an angled surface that can vary between approximately 15° and 65°.

摘要翻译： 公开了一种用于提供具有防止极尖结构的过饱和形状的极尖结构的方法和装置。 在极结构上形成具有用于降低盖层的饱和度的尾部结构的盖层。 尾部结构包括可在大约15°和65°之间变化的成角度的表面。

公开(公告)号：US20080316630A1

公开(公告)日：2008-12-25

申请号：US11765650

申请日：2007-06-20

申请人： Bernd Lamberts ,  Vladimir Nikitin ,  James Terrence Olson

发明人： Bernd Lamberts ,  Vladimir Nikitin ,  James Terrence Olson

IPC分类号： G11B27/36 ,  G11B5/17 ,  G11B5/33

CPC分类号： G11B5/1278 ,  G11B5/3133 ,  G11B5/6064 ,  G11B5/607

摘要： A magnetic data recording system that can directly measure soft underlayer spacing of a perpendicular magnetic write head during operation. The soft underlayer spacing of the magnetic write head can be determined by measuring the magnetic inductance of the write head. The inductance of the write head varies with changes in the distance between the write pole and the soft underlayer of the magnetic medium. By connecting the write head with magnetic inductance measuring circuitry, the soft underlayer spacing can be constantly monitored during operation of the magnetic data recording system. The system can also include active fly height control such as a thermal fly height control capability. By directly measuring the soft underlayer spacing in real time during use of the data recording system, the actively fly height controlling features can be operated efficiently to precisely maintain a desired spacing between the write pole and the soft underlayer of the magnetic medium.

摘要翻译： 一种磁性数据记录系统，可在操作过程中直接测量垂直磁性写入头的软底层间距。 可以通过测量写头的磁感来确定磁写头的软底层间距。 写头的电感随磁介质的写极和软底层之间的距离变化而变化。 通过将写入头与磁感测量电路连接起来，可以在磁数据记录系统的操作期间不间断地监视软底层间距。 该系统还可以包括主动飞行高度控制，例如热飞行高度控制能力。 通过在使用数据记录系统期间实时地直接测量软底层间距，可以有效地操作主动飞行高度控制特征，以精确地保持磁性介质的写极和软底层之间的期望间隔。

公开(公告)号：US20060164760A1

公开(公告)日：2006-07-27

申请号：US11043490

申请日：2005-01-26

申请人： Vladimir Nikitin ,  David Seagle

发明人： Vladimir Nikitin ,  David Seagle

IPC分类号： G11B5/60

CPC分类号： G11B5/6005 ,  G11B5/3173 ,  G11B5/4853

摘要： A recording head is disclosed that includes electrical pads on multiple surfaces. The recording head includes a substrate portion abutting a deposited portion. The deposited portion includes an air bearing surface (ABS) (or bottom surface), an end surface, and at least one other surface. The end surface is the surface traditionally used by head designers for electrical pads. In accord with the invention, one or more electrical pads are included on the other surfaces of the deposited portion (i.e., a surface other than the end surface). Electrical pads may also be included on the end surface.

摘要翻译： 公开了一种包括多个表面上的电焊盘的记录头。 记录头包括邻接沉积部分的基底部分。 沉积部分包括空气轴承表面（ABS）（或底表面），端表面和至少另一个表面。 端面是传统上由头设计师用于电焊盘的表面。 根据本发明，一个或多个电焊盘包括在沉积部分的其它表面（即除了端面之外的表面）上。 电焊盘也可以包括在端面上。

公开(公告)号：US20060114605A1

公开(公告)日：2006-06-01

申请号：US11001265

申请日：2004-11-30

申请人： Vladimir Nikitin

发明人： Vladimir Nikitin

IPC分类号： G11B21/02 ,  G11B5/127 ,  G11B5/325 ,  G11B5/23 ,  G11B5/187

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/127 ,  G11B5/2655 ,  G11B5/31 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3967 ,  G11B2005/3996

摘要： An inductive write head has its write poles and write gap oriented to generate magnetic fields in the cross-track direction on a magnetic recording disk in a disk drive. The disk has the magnetizations in the concentric data tracks oriented in the cross-track direction with the concentric data tracks magnetically separated from each other by guard bands. The write head may have an erase pole and an erase gap to generate magnetic fields in an along-the-track direction on the sides of the data tracks, with the along-the-track magnetizations serving as the guard bands.

摘要翻译： 感应写入头具有写入磁极和写入间隙，以在磁盘驱动器中的磁记录盘上沿交叉磁道方向产生磁场。 磁盘在同心数据磁道中具有在交叉磁道方向上定向的磁化，同心数据磁道通过保护带彼此磁性分离。 写头可以具有擦除磁极和擦除间隙，以在数据磁道的侧面上沿着磁道方向产生磁场，沿着磁道磁化用作保护带。

公开(公告)号：US09490421B2

公开(公告)日：2016-11-08

申请号：US13751304

申请日：2013-01-28

申请人： Dmytro Apalkov ,  Alexey Vasilyevitch Khvalkovskiy ,  Vladimir Nikitin ,  Steven M. Watts

发明人： Dmytro Apalkov ,  Alexey Vasilyevitch Khvalkovskiy ,  Vladimir Nikitin ,  Steven M. Watts

IPC分类号： H01L29/82 ,  H01L21/02 ,  H01L43/08 ,  H01L43/12 ,  H01F10/32 ,  G11C11/16

CPC分类号： H01L43/08 ,  G11C11/161 ,  G11C11/1675 ,  H01F10/3254 ,  H01F10/3272 ,  H01L43/12

摘要： A method and system provide a magnetic junction usable in a magnetic device and which resides on a substrate. The magnetic junction includes a reference layer, a nonmagnetic spacer layer, and a free layer. The nonmagnetic spacer layer is between the reference layer and the free layer. The free layer, the nonmagnetic spacer layer and the reference layer form nonzero angle(s) with the substrate. The magnetic junction is configured such that the free layer is switchable between a plurality of stable magnetic states when a write current is passed through the magnetic junction.

摘要翻译： 一种方法和系统提供可用于磁性装置并位于基板上的磁结。 磁结包括参考层，非磁性间隔层和自由层。 非磁性间隔层位于参考层和自由层之间。 自由层，非磁性间隔层和参考层与衬底形成非零角度。 磁结被配置为使得当写入电流通过磁结时，自由层可在多个稳定磁状态之间切换。