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1.发明授权公开(公告)号：US08914969B1
公开(公告)日：2014-12-23
申请号：US13717057
申请日：2012-12-17
发明人： Xiaotian Zhou , Hongzhou Jiang , Donghong Li , Lien-Chang Wang , Ching-Huang Lu , Wencheng Su , Lieping Zhong , Tao Pan
CPC分类号： G11B5/315 , G11B5/1278 , G11B5/3163 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method fabricates a magnetic transducer. A sacrificial leading shield is provided on an etch stop layer. A nonmagnetic layer is provided on the sacrificial leading shield. A pole trench is formed in the nonmagnetic layer and on the sacrificial leading shield. A pole is formed. The pole has a bottom and a top wider than the bottom in a pole tip region. Part of the pole in the pole tip region is in the pole trench and at the ABS location. The sacrificial leading shield and part of the nonmagnetic layer adjacent to the pole are removed. An air bridge thus resides in place of the sacrificial leading shield between the portion of the pole and the etch stop layer. As least one shield layer is provided. The at least one shield layer substantially fills the air bridge and form a monolithic shield including a leading and side shields.
摘要翻译： 一种制造磁性换能器的方法。 在蚀刻停止层上提供牺牲前导屏蔽。 在牺牲导电屏蔽上提供非磁性层。 在非磁性层和牺牲导电屏蔽上形成极沟槽。 一个极点形成。 极点在极尖区域具有底部和顶部宽于底部。 极尖区域的极点的一部分在极沟和ABS位置。 牺牲前导屏蔽和邻近极点的非磁性层的一部分被去除。 因此，空气桥代替在极的部分和蚀刻停止层之间的牺牲前导屏蔽。 至少提供一个屏蔽层。 所述至少一个屏蔽层基本上填充所述空气桥并形成包括前屏蔽和侧面屏蔽的整体屏蔽。
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2.发明授权Magnetic writer having a gradient in saturation magnetization of the shields and return pole 有权磁性写入器具有屏蔽和返回极的饱和磁化梯度公开(公告)号：US09443541B1
公开(公告)日：2016-09-13
申请号：US14667506
申请日：2015-03-24
发明人： Feng Liu , El-Amine Salhi , Ming Sun , Tao Pan
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/315 , G11B5/3163
摘要： A method and system provide a magnetic transducer. The transducer includes a main pole, a side gap, at least one coil, a side shield and at least one of a leading shield, a trailing shield and a return pole. The coil(s) are configured to energize the main pole. The side gap is between the main pole and the side shield. The main pole is between the leading shield and the trailing shield. The trailing shield is between the main pole and the return pole. The side shield is between the leading shield and the trailing shield. At least one of the leading shield, the trailing shield and the return pole have a gradient in saturation magnetization such that the saturation magnetization varies in a down track direction.
摘要翻译： 一种方法和系统提供一种磁换能器。 换能器包括主极，侧间隙，至少一个线圈，侧屏蔽以及前屏蔽，后屏蔽和返回极中的至少一个。 线圈被配置为使主极通电。 侧面间隙位于主极和侧面屏蔽之间。 主杆位于前盾和后盾之间。 后挡板位于主杆和返回杆之间。 侧面护罩位于前挡板和后挡板之间。 前导屏蔽，后屏蔽和返回极中的至少一个具有饱和磁化强度的梯度，使得饱和磁化强度沿向下的磁道方向变化。
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3.发明授权Magnetic write pole having engineered radius of curvature and chisel angle profiles 有权具有设计曲率半径和凿角分布的磁写柱公开(公告)号：US09190079B1
公开(公告)日：2015-11-17
申请号：US14492545
申请日：2014-09-22
发明人： Feng Liu , Tao Pan , Hai Sun , Zhigang Bai , Yang Xiang , Yugang Wang , Ling Wang
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A magnetic transducer has air-bearing surface (ABS) and includes a main pole and at least one coil. The coil(s) energize the main pole. The main pole includes a yoke and a pole tip having an ABS-facing surface. The pole tip includes a sidewall having a radius of curvature and a chisel angle. The chisel angle is measured between a yoke direction perpendicular to the ABS and a tangent the sidewall. The chisel angle for the pole tip continuously increases in the yoke direction to a maximum a first distance from the ABS-facing surface in the yoke direction. The radius of curvature for the pole tip has a minimum radius of curvature a second distance from the ABS-facing surface in the yoke direction. The first distance is greater than the second distance.
摘要翻译： 磁换能器具有空气轴承表面（ABS）并且包括主极和至少一个线圈。 线圈给主极通电。 主杆包括轭和具有面向ABS的表面的极尖。 极尖包括具有曲率半径和凿角度的侧壁。 在垂直于ABS的轭方向和侧壁切线之间测量凿角。 磁极尖的凿角在磁轭方向上连续地增大到与磁轭方向上的面向ABS的表面的最大距离。 极尖的曲率半径在磁轭方向上具有距离面向ABS的表面的第二距离的最小曲率半径。 第一距离大于第二距离。
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4.发明授权Magnetic recording write transducer having an improved trailing surface profile 有权具有改进的后表面轮廓的磁记录写传感器公开(公告)号：US09082423B1
公开(公告)日：2015-07-14
申请号：US14223957
申请日：2014-03-24
发明人： Feng Liu , Zhigang Bai , Weimin Si , Yugang Wang , Fenglin Liu , Tao Pan , Samuel W. Yuan
IPC分类号： G11B5/11
CPC分类号： G11B5/11 , G11B5/112 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A magnetic transducer has an ABS, a pole, coil(s) and a trailing shield. The pole includes a trailing surface having first and second portions. The first portion adjoins the ABS and is oriented at a first bevel angle from perpendicular to the ABS. The first bevel angle is nonzero and acute. The second portion adjoins the first portion, is recessed from the ABS and oriented at a second bevel angle from perpendicular to the ABS. The second bevel angle is less than the first bevel angle and nonzero. The trailing shield has a pole-facing surface part of which adjoins the ABS and is oriented at the first bevel angle. A write gap is between the trailing shield and the pole. The write gap has a constant thickness for the first portion of the trailing surface and a thickness that increases with increasing distance from the ABS for the second portion.
摘要翻译： 磁换能器具有ABS，杆，线圈和后挡板。 杆包括具有第一和第二部分的后表面。 第一部分邻接ABS并且以垂直于ABS的第一斜角定向。 第一个斜角是非零和锐角。 第二部分邻接第一部分，从ABS凹入并且以垂直于ABS的第二斜角定向。 第二个斜角小于第一个斜角和非零。 后挡板具有面向极板的表面部分，其邻接ABS并且以第一斜角定向。 尾部屏蔽和极之间的写入间隙。 写入间隙对于后表面的第一部分具有恒定的厚度，并且随着与用于第二部分的ABS的距离的增加而增加的厚度。
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公开(公告)号：US09286919B1
公开(公告)日：2016-03-15
申请号：US14574250
申请日：2014-12-17
发明人： Feng Liu , Zhanjie Li , Tao Pan , Zhigang Bai
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/23 , G11B5/315
摘要： A magnetic transducer has air-bearing surface (ABS) and includes a main pole, at least one coil, a side shield and a side gap. The coil(s) energize the main pole. A portion of the main pole resides at the ABS. The side gap is between the main pole and the side shield. The side gap is nonmagnetic and includes a first side gap and a second side gap. The first side gap is conformal with the main pole. The second side gap is conformal with the main pole. The first side gap is between the second side gap and the ABS. The second side gap is wider than the first side gap.
摘要翻译： 磁换能器具有空气轴承表面（ABS），并且包括主极，至少一个线圈，侧护罩和侧间隙。 线圈给主极通电。 主杆的一部分位于ABS。 侧面间隙位于主极和侧面屏蔽之间。 侧面间隙是非磁性的，并且包括第一侧面间隙和第二侧面间隙。 第一侧间隙与主极保持一致。 第二侧间隙与主极保持一致。 第一侧间隙在第二侧间隙和ABS之间。 第二侧间隙比第一侧间隙宽。
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6.发明授权Conformal high moment side shield seed layer for perpendicular magnetic recording writer 有权用于垂直磁记录刻录机的保形高力侧屏蔽种子层公开(公告)号：US09123358B1
公开(公告)日：2015-09-01
申请号：US14246821
申请日：2014-04-07
发明人： Feng Liu , Dehua Han , Yugang Wang , Zhigang Bai , Tao Pan
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315 , G11B5/4886
摘要： A perpendicular magnetic recording writer for use in a data storage device, the recording transducer has a magnetic writer pole, a pole tip facing an air bearing surface (ABS). The pole tip has a pole face, leading side wall, a trailing side wall, a first side wall and a second side wall. A trailing side wall nonmagnetic gap layer on the trailing side wall, a first side wall nonmagnetic gap layer deposited on the first side wall, and a second side wall nonmagnetic gap layer deposited on the second side wall. A high magnetic moment seed layer is deposited on the trailing side wall nonmagnetic gap layer, the first side wall nonmagnetic gap layer, and the second side wall nonmagnetic gap layer. In other aspects of the invention shields are provided that have magnetic moments less than the magnetic moment of the seed layers.
摘要翻译： 一种在数据存储装置中使用的垂直磁记录刻录机，记录换能器具有磁写入极，极尖面向空气轴承表面（ABS）。 极尖具有极面，前侧壁，后侧壁，第一侧壁和第二侧壁。 在后侧壁上的后侧壁非磁性间隙层，沉积在第一侧壁上的第一侧壁非磁性间隙层和沉积在第二侧壁上的第二侧壁非磁性间隙层。 在后侧壁非磁性间隙层，第一侧壁非磁性间隙层和第二侧壁非磁性间隙层上沉积高磁矩种子层。 在本发明的其它方面，提供了具有小于种子层的磁矩的磁矩的屏蔽。
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公开(公告)号：US09508372B1
公开(公告)日：2016-11-29
申请号：US14729403
申请日：2015-06-03
发明人： Yu Pan , Lieping Zhong , Yugang Wang , Zhigang Bai , Tao Pan
CPC分类号： G11B5/147 , G11B5/1278 , G11B5/3116
摘要： A method and system provide a shingle magnetic write transducer. The transducer has an air-bearing surface (ABS) and includes a main pole and at least one coil. The coil(s) are configured to energize the main pole. The main pole includes a leading surface, a trailing surface, and a plurality of sides between the leading surface and the trailing surface. At least one of the plurality of sides form a sidewall angle with a down track direction. The sidewall angle is less than thirteen degrees and is at least zero degrees. In some aspects, the sidewall angle is less than a maximum skew angle for the data storage system.
摘要翻译： 一种方法和系统提供一种瓦片磁写入传感器。 换能器具有空气轴承表面（ABS），并且包括主极和至少一个线圈。 线圈被配置为使主极通电。 主杆包括前表面，后表面以及前表面和后表面之间的多个侧面。 所述多个侧面中的至少一个侧面形成具有向下轨道方向的侧壁角。 侧壁角度小于十三度，至少为零度。 在某些方面，侧壁角度小于数据存储系统的最大倾斜角度。
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8.发明授权公开(公告)号：US09508363B1
公开(公告)日：2016-11-29
申请号：US14307174
申请日：2014-06-17
发明人： Mingjun Yu , Donghong Li , Lien-Chang Wang , Lieping Zhong , Tao Pan
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49043 , Y10T29/49052
摘要： A method provides a magnetic transducer having an air-bearing surface (ABS) location. An intermediate layer having a substantially flat bottom surface is provided. A trench is formed in the intermediate layer. The trench is wider in yoke region than in the pole tip region. The trench has a first depth in the yoke region and a second depth less than the first depth in the pole tip region. A portion of the intermediate layer is at the bottom of the trench at the ABS location. A nonmagnetic layer is provided. The nonmagnetic layer fills part of the trench in the pole tip region such that the trench has a third depth less than the second depth at the ABS location. A main pole is provided. The main pole has a leading bevel adjacent to nonmagnetic layer in the portion of the pole tip region of the trench.
摘要翻译： 一种方法提供具有空气轴承表面（ABS）位置的磁换能器。 提供具有基本平坦的底表面的中间层。 在中间层中形成沟槽。 磁轭区域的沟槽比磁极尖端区域宽。 沟槽在磁轭区域中具有第一深度，而第二深度小于极尖区域中的第一深度。 中间层的一部分在ABS位置处在沟槽的底部。 提供非磁性层。 非磁性层填充极尖区域中的沟槽的一部分，使得沟槽具有小于ABS位置处的第二深度的第三深度。 提供主杆。 主极在沟槽的极尖区域的部分中具有与非磁性层相邻的前导斜面。
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公开(公告)号：US09520146B1
公开(公告)日：2016-12-13
申请号：US13972002
申请日：2013-08-21
发明人： Jinwen Wang , Weimin Si , Jianxin Fang , Ying Hong , Hongzhou Jiang , Ching-Huang Lu , Yan Chen , Donghong Li , Lien-Chang Wang , Lieping Zhong , Tao Pan
CPC分类号： G11B5/112 , G11B5/1276 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3153 , G11B5/3163 , H04R31/00 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method of forming a wrapped-around shielded perpendicular magnetic recording writer pole is disclosed. A structure comprising a leading shield layer and an intermediate layer disposed over the leading shield layer is provided, the intermediate layer comprising a pole material and a dielectric material. A trench is formed in the dielectric material. A non-magnetic layer in the trench is removed via an ion beam etching process. A seed layer is deposited in the trench and over the pole material. A magnetic material comprising a side shield layer is deposited on at least a portion of the seed layer.
摘要翻译： 公开了一种形成缠绕的屏蔽垂直磁记录写入极的方法。 提供了包括引导屏蔽层和设置在引导屏蔽层之上的中间层的结构，所述中间层包括极材料和电介质材料。 在电介质材料中形成沟槽。 通过离子束蚀刻工艺去除沟槽中的非磁性层。 种子层沉积在沟槽中并在极材料上方。 包含侧屏蔽层的磁性材料沉积在籽晶层的至少一部分上。
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10.发明授权公开(公告)号：US09343086B1
公开(公告)日：2016-05-17
申请号：US14051359
申请日：2013-10-10
发明人： Feng Liu , Zhigang Bai , Yugang Wang , Tao Pan
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163
摘要： A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a main pole and at least one coil for energizing the main pole. The main pole includes a pole tip region and a yoke region. The pole tip region includes sidewalls, a bottom and a top wider than the bottom. At least one of the sidewalls forms a first sidewall angle with a down track direction at the ABS and a second sidewall angle with the down track direction at a first distance recessed from the ABS. The first sidewall angle is greater than the second sidewall angle.
摘要翻译： 一种方法和系统提供具有空气轴承表面（ABS）的磁换能器。 磁换能器包括主极和至少一个用于激励主极的线圈。 主极包括极尖区域和轭区域。 极尖区域包括侧壁，底部和顶部比底部更宽。 所述侧壁中的至少一个在ABS处形成具有向下轨道方向的第一侧壁角，并且与沿着向下轨道方向的第二侧壁角在与ABS凹陷的第一距离处形成。 第一侧壁角度大于第二侧壁角度。
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