公开(公告)号：US08537494B1

公开(公告)日：2013-09-17

申请号：US11935508

申请日：2007-11-06

申请人： Tao Pan ,  Yugang Wang ,  Kroum S. Stoev

发明人： Tao Pan ,  Yugang Wang ,  Kroum S. Stoev

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

摘要： A method and system for providing a magnetic transducer having an air-bearing surface (ABS) are described. The magnetic transducer includes a perpendicular magnetic recording (PMR) pole, an additional pole, a stitch, a shield, a write gap between the PMR pole and a portion of the shield, and at least one coil that energizes at least the additional pole. The PMR pole has a first front portion proximate to the ABS, while the additional pole is recessed from the ABS. The stitch resides between the PMR pole and the additional pole and has a stitch front portion between the front portion of the PMR pole and the additional pole. At least a portion of the write gap resides on the front portion of the PMR pole. At least a portion of the additional pole resides between the PMR pole and the shield.

摘要翻译： 描述了一种用于提供具有空气轴承表面（ABS）的磁换能器的方法和系统。 磁换能器包括垂直磁记录（PMR）极，附加极，线迹，屏蔽，PMR极与屏蔽的一部分之间的写间隙，以及至少一个激励至少附加极的线圈。 PMR杆具有靠近ABS的第一前部，而附加杆从ABS凹入。 该线圈位于PMR极和附加极之间，并且在PMR极的前部和附加极之间具有针迹前部。 写入间隙的至少一部分位于PMR极的前部。 附加极点的至少一部分位于PMR极与屏蔽之间。

公开(公告)号：US07688546B1

公开(公告)日：2010-03-30

申请号：US11643493

申请日：2006-12-21

申请人： Zhigang Bai ,  Peng Luo ,  Kroum S. Stoev ,  Francis H. Liu ,  Yugang Wang ,  Adam F. Torabi

发明人： Zhigang Bai ,  Peng Luo ,  Kroum S. Stoev ,  Francis H. Liu ,  Yugang Wang ,  Adam F. Torabi

IPC分类号： G11B5/17

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： The method and system provide a perpendicular magnetic recording (PMR) head having an air bearing surface (ABS). The PMR head includes first and second poles each having front and back gap regions, a first nonmagnetic insertion layer between the back gap regions, a magnetic pole layer with a front terminating at the ABS, a write gap, shield(s), a second nonmagnetic insertion layer between the second pole back gap region and the shield(s), and coil(s) between the shield(s) and the first pole. The magnetic pole layer terminates between the ABS and the second pole back gap region and has pole angle(s) of at least thirty and not more than fifty degrees. At least part of the magnetic pole layer resides on the second pole. Part of the shield(s) are adjacent to the write gap. Another part of the shield(s) is coupled with the second pole back gap region.

摘要翻译： 该方法和系统提供具有空气轴承表面（ABS）的垂直磁记录（PMR）头。 PMR头包括第一和第二极，每个具有前后间隙区域，在后间隙区域之间的第一非磁性插入层，在ABS处终止于前面的磁极层，写入间隙，屏蔽，第二极 第二极背间隙区域和屏蔽之间的非磁性插入层以及屏蔽和第一极之间的线圈。 磁极层终止在ABS和第二极背间隙区域之间，并且具有至少三十度且不超过五十度的极角。 磁极层的至少一部分位于第二极上。 屏蔽的一部分与写入间隙相邻。 屏蔽的另一部分与第二极背隙区域耦合。

公开(公告)号：US07729086B1

公开(公告)日：2010-06-01

申请号：US12197612

申请日：2008-08-25

申请人： Suping Song ,  Kroum S. Stoev

发明人： Suping Song ,  Kroum S. Stoev

IPC分类号： G11B5/147 ,  G11B5/56

CPC分类号： G11B5/3133 ,  G11B5/1278 ,  G11B5/3967 ,  G11B5/6064 ,  G11B5/607

摘要： A magnetic head for perpendicular magnetic recording includes a slider having an air bearing surface (ABS) and a trailing surface and a transducer fabricated on the trailing surface. The transducer includes a magnetoresistive (MR) read element disposed within a gap material bounded by shield material, an adjunct pole, and a main pole formed in an adjacent layered relationship to the adjunct pole. The adjunct pole has a front edge that is recessed from the ABS and a rear edge. The main pole has a write tip that extends approximately to the ABS. The transducer further includes a write coil having a first layer of turns below the adjunct pole and above the shield material. The magnetic head also includes a heating element with a portion of the heating element below the write coil and behind the rear edge of the adjunct pole.

摘要翻译： 用于垂直磁记录的磁头包括具有空气轴承表面（ABS）和后表面的滑块以及在后表面上制造的换能器。 换能器包括设置在由屏蔽材料界定的间隙材料内的磁阻（MR）读取元件，辅助极和与附加极相邻的层叠关系形成的主极。 辅助杆具有从ABS凹下的前边缘和后边缘。 主杆具有大致延伸到ABS的写入尖端。 换能器还包括写入线圈，该线圈具有在辅助极下方的第一层匝并且在屏蔽材料之上。 磁头还包括加热元件，其中加热元件的一部分在写入线圈下方并在辅助极的后边缘之后。

公开(公告)号：US07522379B1

公开(公告)日：2009-04-21

申请号：US10909226

申请日：2004-07-30

申请人： Mohamad T. Krounbi ,  Yining Hu ,  Ming Zhao ,  Kenneth Kung ,  Mark D. Thomas ,  Kroum S. Stoev ,  Francis H. Liu ,  Marcos M. Lederman

发明人： Mohamad T. Krounbi ,  Yining Hu ,  Ming Zhao ,  Kenneth Kung ,  Mark D. Thomas ,  Kroum S. Stoev ,  Francis H. Liu ,  Marcos M. Lederman

IPC分类号： G11B5/147

CPC分类号： G11B5/3133

摘要： A head including a write element for writing data to a magnetic media, and methods for its production are provided. A write element of the invention includes one or more of a recessed first pole, a heat sink layer, and a shortened yoke length. A method of the invention provides forming an anti-reflective layer before forming a mask layer. During photolithography the anti-reflective layer suppresses undesirable reflections off of features, such as vertical sidewalls, that otherwise limit how closely to such features portions of the mask layer can be formed.

摘要翻译： 提供一种包括用于向磁性介质写入数据的写入元件的头，以及用于其生产的方法。 本发明的写入元件包括凹入的第一极，散热层和缩短的磁轭长度中的一个或多个。 本发明的方法提供了在形成掩模层之前形成抗反射层。 在光刻期间，抗反射层抑制了诸如垂直侧壁的特征（例如垂直侧壁）的不期望的反射，否则可以限制与这些特征的接近程度，可以形成掩模层的部分。

公开(公告)号：US07337530B1

公开(公告)日：2008-03-04

申请号：US11699777

申请日：2007-01-30

申请人： Kroum S. Stoev ,  Francis H. Liu ,  Yugang Wang

发明人： Kroum S. Stoev ,  Francis H. Liu ,  Yugang Wang

IPC分类号： G11B5/147

CPC分类号： G11B5/313 ,  G11B5/1278 ,  G11B5/3116 ,  G11B2005/0029 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49046 ,  Y10T29/4905

摘要： A method of making a perpendicular magnetic recording head for use in a data storage device includes forming a first pole layer, a second pole layer, a third pole layer, and a shield layer of a write section. The first pole layer, second pole layer, third pole layer, and shield layer are formed without using a chemical mechanical polishing process. The method next includes concurrently trimming the shield layer and a write pole that is defined by the third pole layer to a predetermined track width. In the trimming step, the shield layer is used as a mask for the write pole.

摘要翻译： 制造用于数据存储装置的垂直磁记录头的方法包括形成写入部分的第一极层，第二极层，第三极层和屏蔽层。 在不使用化学机械抛光工艺的情况下形成第一极层，第二极层，第三极层和屏蔽层。 该方法接下来包括同时修整屏蔽层和由第三极层限定到预定磁道宽度的写入极。 在修整步骤中，屏蔽层用作写入极的掩模。

公开(公告)号：US08351307B1

公开(公告)日：2013-01-08

申请号：US12794692

申请日：2010-06-04

申请人： Christopher B. Wolf ,  Eric J. Champion ,  Kroum S. Stoev

发明人： Christopher B. Wolf ,  Eric J. Champion ,  Kroum S. Stoev

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A near field transducer (NFT) for use in an energy assisted magnetic recording (EAMR) head and configured to direct energy to a recording media is disclosed. The NFT comprises a disk section; and a pin section extending towards an air bearing surface (ABS) from the disk section. The pin section has a proximal end adjoining the disk section and a distal end opposite to the proximal end and facing the ABS, wherein at least the distal end of the pin section has a non- rectangular cross section in a plane parallel to the ABS.

摘要翻译： 公开了一种用于能量辅助磁记录（EAMR）头并被配置为将能量引导到记录介质的近场传感器（NFT）。 NFT包括磁盘部分; 以及从盘部向空气轴承表面（ABS）延伸的销部分。 销部分具有邻近盘部分的近端和与近端相对的并且面向ABS的远端，其中销部分的至少远端在平行于ABS的平面中具有非矩形截面。

公开(公告)号：US08320219B1

公开(公告)日：2012-11-27

申请号：US12815934

申请日：2010-06-15

申请人： Christopher B. Wolf ,  Eric J. Champion ,  Kroum S. Stoev

发明人： Christopher B. Wolf ,  Eric J. Champion ,  Kroum S. Stoev

IPC分类号： G11B11/00

CPC分类号： G11B5/6088 ,  G11B5/314 ,  G11B2005/0021

摘要： An energy assisted magnetic recording (EAMR) head for writing to a recording media is disclosed. The EAMR head includes a write pole for providing a magnetic field for writing to the recording media; and a near field transducer disposed adjacent to the write pole and comprising a disk section and a pin section extending towards an air bearing surface (ABS) from the disk section. At least a portion of the pin section is electrically isolated from the write pole by an insulator material.

摘要翻译： 公开了一种用于写入记录介质的能量辅助磁记录（EAMR）头。 EAMR头包括写磁极，用于提供用于写入记录介质的磁场; 以及靠近所述写入极设置的近场换能器，并且包括盘部分和从所述盘部向空气轴承表面（ABS）延伸的销部分。 引脚部分的至少一部分通过绝缘体材料与写入极电隔离。

公开(公告)号：US07869160B1

公开(公告)日：2011-01-11

申请号：US11116658

申请日：2005-04-27

申请人： Tao Pan ,  Kroum S. Stoev ,  Yugang Wang ,  Jack M. Chue

发明人： Tao Pan ,  Kroum S. Stoev ,  Yugang Wang ,  Jack M. Chue

IPC分类号： G11B5/23 ,  G11B5/187 ,  G11B5/31 ,  G11B5/39

CPC分类号： G11B5/3116 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/23 ,  G11B5/3146 ,  G11B5/3163

摘要： A perpendicular recording head is provided having a bottom pole, a writer pole disposed above the bottom pole, and a top shield disposed above the writer pole. The bottom pole and the top shield are both magnetically coupled to the writer pole. The writer pole includes a concave facing surface that faces the top shield. The top shield can include a convex surface that faces the writer pole. The top shield can also include a pedestal that protrudes towards the writer pole.

摘要翻译： 设置有垂直记录头，其具有底极，设置在底极上方的写入极和设置在写入极上方的顶部屏蔽。 底极和顶部屏蔽都与磁极耦合。 写入器极包括面向顶部屏蔽的面向凹面的表面。 顶部屏蔽件可以包括面向写入极的凸面。 顶部屏蔽还可以包括朝着写入杆突出的基座。

公开(公告)号：US07729087B1

公开(公告)日：2010-06-01

申请号：US12103183

申请日：2008-04-15

申请人： Kroum S. Stoev ,  Suping Song ,  Tao Pan

发明人： Kroum S. Stoev ,  Suping Song ,  Tao Pan

IPC分类号： G11B5/187 ,  G11B5/58

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

摘要： A magnetic head includes a slider body having a trailing surface meeting an air-bearing surface at a trailing edge and a thin-film transducer that includes a magnetic reproducing element with a magnetoresistive (MR) element disposed near the trailing edge within a gap material bounded by upper and lower shield layers. The thin-film transducer also includes a lower pole layer of a magnetic recording element disposed in a first general plane. The magnetic recording element further includes a coil having first and second turn layers disposed in second and third general planes, respectively. The magnetic head also includes resistive heating element with at least a portion of the heating element being disposed in a fourth general plane beneath both the lower pole layer and the coil but above the upper shield layer. Current flow through the heating element causes expansion of the magnetic reproducing and recording elements at the ABS.

摘要翻译： 磁头包括具有在后缘处与空气轴承表面相遇的后表面的滑块主体和薄膜换能器，该薄膜换能器包括具有磁阻（MR）元件的磁性再现元件，所述磁性再现元件设置在边界附近的间隙材料边界内 通过上下屏蔽层。 薄膜换能器还包括设置在第一通用平面中的磁记录元件的下极层。 磁记录元件还包括具有分别设置在第二和第三通用平面中的第一和第二转向层的线圈。 磁头还包括电阻加热元件，其中加热元件的至少一部分设置在下极层和线圈之下但在上屏蔽层之上的第四通用平面中。 通过加热元件的电流使ABS的磁再现和记录元件膨胀。

公开(公告)号：US07310204B1

公开(公告)日：2007-12-18

申请号：US10741856

申请日：2003-12-19

申请人： Kroum S. Stoev ,  Francis H. Liu ,  Yugang Wang ,  Yingjian Chen

发明人： Kroum S. Stoev ,  Francis H. Liu ,  Yugang Wang ,  Yingjian Chen

IPC分类号： G11B5/187

CPC分类号： G11B5/1871 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/3967

摘要： A magnetic head for writing information on a relatively-moving medium has a pair of substantially flat soft magnetic pole layers separated by a pair of coil layers. A soft magnetic pedestal adjoins the leading pole layer adjacent to a medium-facing surface and is spaced from the second pole layer by a nanoscale nonferromagnetic gap, the pedestal having a layer of high magnetic saturation material that defines a throat height and extends beyond the throat height. A second high magnetic saturation material adjoins the trailing pole layer and either terminates at the throat height to form a second pedestal or extends to reach a magnetic backgap structure that magnetically couples the pole layers. The MR sensor can be located closer than the write transducer to the trailing end of the head to reduce separation between the read transducer and the write transducer.

摘要翻译： 用于在相对移动的介质上写入信息的磁头具有由一对线圈层隔开的一对基本平坦的软磁极层。 软磁性基座毗邻与中间面向表面相邻的引导极层，并且与第二极层间隔一纳米尺度的非铁磁隙，该基座具有一层高磁饱和度材料，其限定了喉部高度并延伸到喉部 高度。 第二高磁饱和材料邻接后极层并且终止于喉部高度以形成第二基座或延伸以到达磁耦合极层的磁性后隙结构。 MR传感器可以位于比写入传感器更靠近头部尾端的位置，以减少读取传感器与写入传感器之间的分离。