公开(公告)号：US07770285B2

公开(公告)日：2010-08-10

申请号：US12058584

申请日：2008-03-28

申请人： Christian R. Bonhote ,  Malika D. Carter ,  David A. Dudek ,  Wen-Chien D. Hsiao ,  John W. Lam ,  Vladimir Nikitin

发明人： Christian R. Bonhote ,  Malika D. Carter ,  David A. Dudek ,  Wen-Chien D. Hsiao ,  John W. Lam ,  Vladimir Nikitin

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/40 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/3163 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A magnetic read/write head is produced with an insert layer between the substrate and the magnetic transducer. The insert layer has a lower coefficient of thermal expansion than the substrate, which reduces the temperature pole tip recession (T-PTR) of the head because the insert layer is an intervening layer between the substrate and magnetic transducer. The insert layer is produced by plating, e.g., an Invar layer over the substrate prior to fabricating the magnetic transducer. The Invar layer is annealed and the structure planarized prior to depositing a non-magnetic gap layer followed by the fabrication of the magnetic transducer.

摘要翻译： 磁性读/写头在衬底和磁换能器之间产生插入层。 插入层具有比衬底更低的热膨胀系数，这降低了头部的温度极尖衰退（T-PTR），因为插入层是衬底和磁换能器之间的中间层。 在制造磁换能器之前，通过在衬底上电镀例如Invar层来制造插入层。 在沉积非磁隙层之前对Invar层进行退火并将结构平坦化，随后制造磁换能器。

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：US20070236831A1

公开(公告)日：2007-10-11

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： G11B5/147

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：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。