公开(公告)号：US08472136B2

公开(公告)日：2013-06-25

申请号：US12502149

申请日：2009-07-13

申请人： Sharat Batra ,  Michael Mallary ,  Mourad Benakli

发明人： Sharat Batra ,  Michael Mallary ,  Mourad Benakli

IPC分类号： G11B5/23 ,  G11B5/147

CPC分类号： G11B5/3116

摘要： A magnetic writer comprises a write pole and a trailing shield. The write pole is proximate an air bearing surface. The trailing shield is separated from the write pole by a first write gap. The trailing shield is configured with a magnetic layer disposed between the first write gap and a second write gap.

摘要翻译： 磁性写入器包括写极和后屏蔽。 写柱靠近空气轴承表面。 尾部屏蔽通过第一写入间隙与写入极分离。 后屏蔽配置有设置在第一写入间隙和第二写入间隙之间的磁性层。

公开(公告)号：US20110007428A1

公开(公告)日：2011-01-13

申请号：US12502149

申请日：2009-07-13

申请人： Sharat Batra ,  Michael Mallary ,  Mourad Benakli

发明人： Sharat Batra ,  Michael Mallary ,  Mourad Benakli

IPC分类号： G11B5/33

CPC分类号： G11B5/3116

摘要： A magnetic writer comprises a surface, a write pole, a trailing shield and a gap. The write pole has a write pole tip proximate the surface. The trailing shield is proximate the surface and space away from the write pole. The gap is proximate the surface and located between the write pole tip and the trailing shield. The gap has an effective thickness. The gap comprises a first write gap and a synthesized low magnetization shield. The synthesized low magnetization shield is configured such that a magnetization of the synthesized magnetization shield adjacent the surface has a perpendicular component in an opposite direction to the magnetization of the write pole tip during a write operation.

摘要翻译： 磁性写入器包括表面，写入极，后屏蔽和间隙。 写极具有靠近表面的写极尖。 尾部屏蔽靠近表面，远离写入极的空间。 该间隙靠近表面并且位于写极端和后屏蔽之间。 间隙具有有效的厚度。 间隙包括第一写入间隙和合成的低磁化屏蔽。 合成的低磁化屏蔽被配置为使得在写入操作期间，邻近表面的合成磁屏蔽的磁化具有与写入磁极尖端的磁化方向相反的方向的垂直分量。

公开(公告)号：US20110205671A1

公开(公告)日：2011-08-25

申请号：US12710456

申请日：2010-02-23

申请人： Mourad Benakli ,  Sharat Batra

发明人： Mourad Benakli ,  Sharat Batra

IPC分类号： G11B5/33

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

摘要： A magnetic recording head includes a magnetic recording write element including a main pole. The main pole has a leading edge and an opposing trailing edge and a first side surface and a second side surface separating the leading edge from the trailing edge. A first side magnetic shield is positioned adjacent the first side surface and a second side magnetic shield positioned adjacent to the second side surface. A first side shield gap separates the first side shield from the first side of the main pole. A second side shield gap separates the second side shield from the second side of the main pole. A front magnetic shield is separated from the main pole trailing edge by a front shield gap. A recess extends into the front shield adjacent to the trailing edge, and parallel to the trailing edge. The recess extends laterally away from the main pole and into the front shield a distance greater than the first side shield gap or second side shield gap.

摘要翻译： 磁记录头包括具有主极的磁记录写元件。 主极具有前缘和相对的后缘以及将前缘与后缘分开的第一侧表面和第二侧表面。 第一侧磁屏蔽件邻近第一侧表面定位，第二侧磁屏蔽件邻近第二侧表面定位。 第一侧屏蔽间隙将第一侧屏蔽与主极的第一侧分离。 第二侧屏蔽间隙将第二侧屏蔽与主极的第二侧分开。 前磁屏蔽通过前屏蔽间隙与主极后缘分离。 凹槽与后缘相邻地延伸到前屏蔽件中，并且平行于后缘。 凹部从主极横向延伸并且远离第一侧屏蔽间隙或第二侧屏蔽间隙的距离远离前屏蔽。

公开(公告)号：US20130016442A1

公开(公告)日：2013-01-17

申请号：US13609657

申请日：2012-09-11

申请人： Mourad Benakli ,  Sharat Batra

发明人： Mourad Benakli ,  Sharat Batra

IPC分类号： G11B5/10

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

摘要： A magnetic recording head includes a magnetic recording write element including a main pole having a leading edge and an opposing trailing edge and a first side surface and a second side surface separating the leading edge from the trailing edge. A first side shield gap separates a first side shield from the first side of the main pole and a second side shield gap separates the second side shield from the second side of the main pole. A front magnetic shield is separated from the main pole trailing edge by a front shield gap. A recess extends into the front shield adjacent to the trailing edge, and parallel to the trailing edge. The recess extends laterally away from the main pole and into the front shield a distance greater than the first side shield gap or second side shield gap.

摘要翻译： 磁记录头包括磁记录写元件，该磁记录写元件包括具有前缘和相对后缘的主极和分离前缘与后缘的第一侧表面和第二侧表面。 第一侧屏蔽间隙将第一侧屏蔽与主极的第一侧分开，并且第二侧屏蔽间隙将第二侧屏蔽与主极的第二侧分离。 前磁屏蔽通过前屏蔽间隙与主极后缘分离。 凹槽与后缘相邻地延伸到前屏蔽件中，并且平行于后缘。 凹部从主极横向延伸并且远离第一侧屏蔽间隙或第二侧屏蔽间隙的距离远离前屏蔽。

公开(公告)号：US08717707B2

公开(公告)日：2014-05-06

申请号：US13609657

申请日：2012-09-11

申请人： Mourad Benakli ,  Sharat Batra

发明人： Mourad Benakli ,  Sharat Batra

IPC分类号： G11B5/11 ,  G11B5/23 ,  G11B5/31

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

摘要： A magnetic recording head includes a magnetic recording write element including a main pole having a leading edge and an opposing trailing edge and a first side surface and a second side surface separating the leading edge from the trailing edge. A first side shield gap separates a first side shield from the first side of the main pole and a second side shield gap separates the second side shield from the second side of the main pole. A front magnetic shield is separated from the main pole trailing edge by a front shield gap. A recess extends into the front shield adjacent to the trailing edge, and parallel to the trailing edge. The recess extends laterally away from the main pole and into the front shield a distance greater than the first side shield gap or second side shield gap.

摘要翻译： 磁记录头包括磁记录写元件，该磁记录写元件包括具有前缘和相对后缘的主极和分离前缘与后缘的第一侧表面和第二侧表面。 第一侧屏蔽间隙将第一侧屏蔽与主极的第一侧分开，并且第二侧屏蔽间隙将第二侧屏蔽与主极的第二侧分离。 前磁屏蔽通过前屏蔽间隙与主极后缘分离。 凹槽与后缘相邻地延伸到前屏蔽件中，并且平行于后缘。 凹部从主极横向延伸并且远离第一侧屏蔽间隙或第二侧屏蔽间隙的距离远离前屏蔽。

公开(公告)号：US08289647B2

公开(公告)日：2012-10-16

申请号：US12710456

申请日：2010-02-23

申请人： Mourad Benakli ,  Sharat Batra

发明人： Mourad Benakli ,  Sharat Batra

IPC分类号： G11B5/11 ,  G11B5/23 ,  G11B5/235 ,  G11B5/31

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

摘要： A magnetic recording head includes a magnetic recording write element including a main pole having a leading edge, an opposing trailing edge, a first side surface and a second side surface. A first side magnetic shield is positioned adjacent the first side surface and a second side magnetic shield positioned adjacent to the second side surface. First and second side shields are separated from the main pole by a first and second side shield gap. A front magnetic shield is separated from the main pole trailing edge by a front shield gap. A recess extends into the front shield adjacent to the trailing edge, and parallel to the trailing edge, and extends laterally away from the main pole and into the front shield a distance greater than the first or second side shield gap.

摘要翻译： 磁记录头包括磁记录写元件，磁记录写元件包括具有前缘，相对后缘，第一侧表面和第二侧表面的主极。 第一侧磁屏蔽件邻近第一侧表面定位，第二侧磁屏蔽件邻近第二侧表面定位。 第一和第二侧面屏蔽通过第一和第二侧面屏蔽间隙与主极分离。 前磁屏蔽通过前屏蔽间隙与主极后缘分离。 凹口延伸到前屏蔽件中，与后缘相邻并且平行于后缘，并且横向远离主极并且远离第一或第二侧屏蔽间隙远离前屏蔽件。

公开(公告)号：US08365393B1

公开(公告)日：2013-02-05

申请号：US12510349

申请日：2009-07-28

申请人： Mourad Benakli ,  Michael Mallary

发明人： Mourad Benakli ,  Michael Mallary

IPC分类号： G11B5/187 ,  C23C14/22

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

摘要： Methods for manufacturing a magnetic head for a disk drive. The methods include the steps of depositing a first non-magnetic spacer layer, depositing a plating seed layer on the first non-magnetic spacer layer and plating at least one side shield and a pole tip layer on the plating seed layer, each of the at least one side shield and the pole tip layer separated by a trench. Then the method includes depositing a first non-magnetic material in the trench using ion-beam assisted deposition and planarizing using a chemical-mechanical polishing step.

摘要翻译： 制造磁盘驱动器的磁头的方法。 所述方法包括以下步骤：沉积第一非磁性间隔层，在第一非磁性间隔层上沉积电镀种子层，并在电镀种子层上镀覆至少一个侧屏蔽和极尖层， 至少一个侧面屏蔽和由沟槽隔开的极尖层。 然后，该方法包括使用离子束辅助沉积和使用化学机械抛光步骤平坦化在沟槽中沉积第一非磁性材料。

公开(公告)号：US08243389B2

公开(公告)日：2012-08-14

申请号：US12967927

申请日：2010-12-14

申请人： Mourad Benakli ,  Michael Mallary

发明人： Mourad Benakli ,  Michael Mallary

IPC分类号： G11B5/667 ,  G11B5/82

CPC分类号： G11B5/667 ,  G11B5/82 ,  G11B5/855

摘要： A recording media design having discrete track recording structure where the trenches between tracks are filled with a soft magnetic material is provided. The soft magnetic material provides a low magnetic impedance path to the soft underlayer such that fringe fields from the write head are conducted to the soft underlayer without having a negative effect such as adjacent track erasure. A method of manufacturing the media includes a nano-imprint step and ion milling out the data layer to create the trenches. A B2O3 material allows the data layer to be ion milled out without redeposition bridging the B2O3 layer thus preventing lift off of the mask. The trenches are then filled by ion deposition with the layers of ferromagnetic material separated by an anti-ferromagnetic coupling that causes the flux to be conducted to the soft underlayer and remnant flux to rotate within the island and not into adjacent tracks.

摘要翻译： 提供了具有离散轨道记录结构的记录介质设计，其中轨道之间的沟槽被软磁材料填充。 软磁材料提供到软底层的低磁阻抗路径，使得来自写头的边缘场被传导到软底层，而不会产生诸如相邻轨道擦除的负面影响。 制造介质的方法包括纳米压印步骤和离子铣出数据层以产生沟槽。 B2O3材料允许将数据层离子研磨而不再沉积B2O3层，从而防止掩模剥离。 然后通过离子沉积来填充沟槽，铁磁材料层通过反铁磁耦合分开，这导致通量被引导到软底层，剩余通量在岛内旋转而不进入相邻的轨道。

公开(公告)号：US07573683B1

公开(公告)日：2009-08-11

申请号：US11483408

申请日：2006-07-06

申请人： Mourad Benakli ,  Michael Mallary

发明人： Mourad Benakli ,  Michael Mallary

IPC分类号： G11B5/127

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

摘要： A write head for a media drive suited for perpendicularly recording data in adjacent magnetic recording media, the media having a magnetic recording layer and a soft underlayer (SUL). The write head has a pole tip, a write yoke connected to the pole tip, a write return yoke, a write shield, one or more conductive coils surrounding the write yoke, and one or more side shields disposed in close proximity to the pole tip. The write return yoke connects to the write yoke on one end and the write shield on a different end. The one or more side shields are separated from the pole tip and write shields by a non-magnetic material and therefore are “floating” and not directly coupled to the write shield or pole tip.

摘要翻译： 适用于在相邻磁记录介质中垂直记录数据的媒体驱动器的写头，所述介质具有磁记录层和软底层（SUL）。 写头具有极尖，连接到极尖的写磁轭，写入返回磁轭，写入屏蔽，围绕写入磁轭的一个或多个导电线圈以及设置在极尖附近的一个或多个侧屏蔽 。 写入返回磁轭在一端连接到写磁轭，而在另一端连接写屏蔽。 一个或多个侧面屏蔽件与极尖分离，并由非磁性材料写入屏蔽，因此“浮动”并且不直接耦合到写入屏蔽或极尖。

公开(公告)号：US07430095B2

公开(公告)日：2008-09-30

申请号：US11786266

申请日：2007-04-11

申请人： Mourad Benakli ,  Michael Mallary ,  Adam F. Torabi

发明人： Mourad Benakli ,  Michael Mallary ,  Adam F. Torabi

IPC分类号： G11B5/127

CPC分类号： G11B5/3146 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1872 ,  G11B5/3116 ,  Y10T29/49032 ,  Y10T29/49052

摘要： A write pole for a read/write head of a disk drive system has a tapered surface on a leading edge thereof. Preferably, the tapered surface has a taper angle of between 0 and 20 degrees from a plane normal to the ABS. By having a write pole with a taper in this manner, sufficient write fields can be achieved even with thinner write pole tips on the ABS surface. By decreasing the thickness of the write pole tip in this manner while maintaining sufficiently high write fields, the skew profile of a write head can be decreased and areal density increased.