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1. 发明授权

US07732069B1 Thin SUL media with shielded pole head 有权
标题翻译：薄型SUL介质带屏蔽极头
公开(公告)号：US07732069B1
公开(公告)日：2010-06-08
申请号：US11148942
申请日：2005-06-09
申请人： Mourad Benakli , Michael Mallary , Adam Torabi
发明人： Mourad Benakli , Michael Mallary , Adam Torabi
IPC分类号： G11B5/64
CPC分类号： G11B5/1278 , G11B5/012 , G11B5/3116 , G11B5/3146 , G11B5/64 , G11B5/82 , G11B2005/0005
摘要： A disk drive system having a shielded pole write head and media that includes a disk having a soft underlayer (SUL) that is relatively thin in order to save on cost for producing the SUL. The SUL is thin enough that it will become magnetically saturated in the vicinity of the write pole. The thickness of the SUL that will achieve this saturation may be stated as being less than a geometric factor times the ratio of the write pole saturation magnetization divided by the saturation magnetization of the SUL. The geometric factor is the ratio of the write pole area at the ABS to the write pole perimeter at the ABS.
摘要翻译：一种具有屏蔽极写头的磁盘驱动器系统和包括具有相对薄的软底层（SUL）的盘的介质，以便节省用于生产SUL的成本。 SUL足够薄，使其在写入极附近变得磁饱和。将实现该饱和的SUL的厚度可以被表示为小于写磁极饱和磁化强度除以SUL的饱和磁化强度之比的几何因子。几何因子是ABS处的写入极区域与ABS的写入极周边的比率。

2. 发明申请

US20070247747A1 Tapered write pole for reduced skew effect 有权
标题翻译：锥形写柱，减少扭曲效应
公开(公告)号：US20070247747A1
公开(公告)日：2007-10-25
申请号：US11786266
申请日：2007-04-11
申请人： Mourad Benakli , Michael Mallary , Adam Torabi
发明人： Mourad Benakli , Michael Mallary , Adam 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.
摘要翻译：用于磁盘驱动器系统的读/写头的写极在其前沿上具有锥形表面。优选地，锥形表面具有与垂直于ABS的平面在0和20度之间的锥角。通过以这种方式具有锥形的写入极，即使在ABS表面上具有较薄的写入极尖，也可以实现足够的写入场。通过以这种方式减小写极尖的厚度同时保持足够高的写入场，可以减小写头的偏斜轮廓并增加面密度。

3. 发明授权

US06807025B1 Magnetic recording process 有权
标题翻译：磁记录过程
公开(公告)号：US06807025B1
公开(公告)日：2004-10-19
申请号：US10027221
申请日：2001-12-21
申请人： Mourad Benakli , Adam Torabi
发明人： Mourad Benakli , Adam Torabi
IPC分类号： G11B503
CPC分类号： G11B5/865
摘要： A magnetic recording process includes applying an initial magnetic field to magnetize a magnetic recording medium and positioning a ferromagnetic mask over the magnetic recording medium. The ferromagnetic mask has a tooth which shields a portion of the magnetic recording medium in order to maintain the initial magnetic field in the portion. The process also includes applying a biasing magnetic field to the magnetic recording medium and applying a recording magnetic field to the magnetic recording medium while applying the biasing magnetic field. The biasing magnetic field is substantially perpendicular to the initial magnetic field and the recording magnetic field is substantially opposite in polarity to the initial magnetic field.
摘要翻译：磁记录处理包括施加初始磁场以磁化磁记录介质并将铁磁掩模定位在磁记录介质上。铁磁掩模具有用于屏蔽磁记录介质的一部分以保持该部分中的初始磁场的齿。该方法还包括将磁偏振磁场施加到磁记录介质，并在施加偏置磁场的同时向磁记录介质施加记录磁场。偏置磁场基本上垂直于初始磁场，并且记录磁场与初始磁场的极性基本相反。

4. 发明授权

US08365393B1 Manufacturing methods for write heads with floating side shields 有权
标题翻译：具有浮动侧屏蔽的写头的制造方法
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。

5. 发明授权

US08243389B2 Write fringing reduction for recording media 失效
标题翻译：为记录媒体写出边缘缩小
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。

6. 发明授权

US07573683B1 Write heads with floating side shields and manufacturing methods 有权
标题翻译：用浮动边屏蔽和制造方法写头
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。

7. 发明授权

US07430095B2 Tapered write pole for reduced skew effect 有权
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.

8. 发明授权

US07372664B1 Techniques to reduce adjacent track erasure including a write pole with a tip having faces at angles 有权
标题翻译：减少相邻轨道擦除的技术，其包括具有角度的面的尖端的写入极
公开(公告)号：US07372664B1
公开(公告)日：2008-05-13
申请号：US11005885
申请日：2004-12-06
申请人： Michael Mallary , Mourad Benakli
发明人： Michael Mallary , Mourad Benakli
IPC分类号： G11B5/147
CPC分类号： G11B5/3123 , G11B5/1278 , G11B5/17 , G11B5/1871 , G11B5/3116
摘要： Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid solenoid coil that includes turns that are in a pancake arrangement and turns that are in a solenoid arrangement; a P2 write pole tip with an increasing amount of flare as the distance from the ABS increases; a notch along an edge of the ABS surface of the P1 write pole adjacent to a tooth that extends closest to the P2 write pole; a back notch adjacent to the tooth on the P1 write pole that has a width generally corresponding to the width of the tooth; and a layered structure on the pole tip of the P1 write pole adjacent to the tooth, the layers having at least one of decreasing amounts of saturation magnetization, decreasing amounts of permeability, or alternating layers of magnetic and nonmagnetic material, where the width of the magnetic and nonmagnetic layers in controlled or the characteristics of the magnetic layers are controlled with regard to saturation magnetization or magnetic permeability to effectively decrease the overall saturation magnetization or permeability.
摘要翻译：用于减少相邻轨迹擦除的技术包括：具有比写入线圈少的匝数的降压线圈，用于抵消由写入线圈引起的场的一部分; 一种混合电磁线圈，其包括处于螺旋排列的薄煎饼布置和转动的匝; 随着距离ABS的距离增加，P2写入磁极尖随着扩张量的增加而增加; 沿着P1写入极的ABS表面的边缘的切口，其与最接近P2写入极的齿相邻; 与P1写入极上的齿相邻的后槽，其宽度通常对应于齿的宽度; 以及在邻近牙齿的P1写入极的极尖上的分层结构，这些层具有减小量的饱和磁化强度，降低的磁导率或磁性和非磁性材料的交替层中的至少一种，其中，在饱和磁化强度或磁导率方面控制磁性层和磁性层的磁性层和非磁性层，以有效降低整体饱和磁化强度或磁导率。

9. 发明申请

US20080024912A1 TECHNIQUES TO REDUCE ADJACENT TRACK ERASURE 有权
标题翻译：减少相似跟踪擦除的技术
公开(公告)号：US20080024912A1
公开(公告)日：2008-01-31
申请号：US11838364
申请日：2007-08-14
申请人： Michael Mallary , Mourad Benakli
发明人： Michael Mallary , Mourad Benakli
IPC分类号： G11B5/127
CPC分类号： G11B5/3123 , G11B5/1278 , G11B5/17 , G11B5/1871 , G11B5/3116
摘要： Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid solenoid coil that includes turns that are in a pancake arrangement and turns that are in a solenoid arrangement; a P2 write pole tip with an increasing amount of flare as the distance from the ABS increases; a notch along an edge of the ABS surface of the P1 write pole adjacent to a tooth that extends closest to the P2 write pole; a back notch adjacent to the tooth on the P1 write pole that has a width generally corresponding to the width of the tooth; and a layered structure on the pole tip of the P1 write pole adjacent to the tooth, the layers having at least one of decreasing amounts of saturation magnetization, decreasing amounts of permeability, or alternating layers of magnetic and nonmagnetic material, where the width of the magnetic and nonmagnetic layers is controlled or the characteristics of the magnetic layers are controlled with regard to saturation magnetization or magnetic permeability to effectively decrease the overall saturation magnetization or permeability.
摘要翻译：用于减少相邻轨迹擦除的技术包括：具有比写入线圈少的匝数的降压线圈，用于抵消由写入线圈引起的场的一部分; 一种混合电磁线圈，其包括处于螺旋排列的薄煎饼布置和转动的匝; 随着距离ABS的距离增加，P2写入磁极尖随着扩张量的增加而增加; 沿着P1写入极的ABS表面的边缘的切口，其与最接近P2写入极的齿相邻; 与P1写入极上的齿相邻的后槽，其宽度通常对应于齿的宽度; 以及在邻近牙齿的P1写入极的极尖上的分层结构，这些层具有减小量的饱和磁化强度，降低的磁导率或磁性和非磁性材料的交替层中的至少一种，其中，控制磁性和非磁性层，或者磁饱和磁化强度或磁导率控制磁性层的特性，以有效降低整体饱和磁化强度或磁导率。

10. 发明授权

US08472136B2 Write pole with a synthesized low magnetization shield 有权
标题翻译：用合成的低磁化屏蔽写磁极
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。

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