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11. 发明授权

US08164855B1 Method and system for providing a write pole in an energy assisted magnetic recording disk drive 有权
标题翻译：在能量辅助磁记录磁盘驱动器中提供写极的方法和系统
公开(公告)号：US08164855B1
公开(公告)日：2012-04-24
申请号：US12614341
申请日：2009-11-06
申请人： Matthew R. Gibbons , Kroum S. Stoev , Yugang Wang , Adam F. Torabi , Lijie Guan
发明人： Matthew R. Gibbons , Kroum S. Stoev , Yugang Wang , Adam F. Torabi , Lijie Guan
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/3116 , G11B2005/0021
摘要： A method and system for providing an energy assisted magnetic recording (EAMR) transducer coupled with a laser are described. The EAMR transducer has an air-bearing surface (ABS) residing in proximity to a media during use. The method and system include providing waveguide(s), a near-field transducer (NFT), write pole(s), and coil(s). The waveguide(s) direct energy from the laser toward the ABS. The NFT is coupled with the waveguide and focuses the energy onto the media. The write pole(s) include a stitch for providing a magnetic field to the media and a yoke coupled to the stitch. The stitch includes an ABS-facing surface, a sloped surface, and an NFT-facing surface between the ABS-facing and sloped surfaces. The NFT-facing surface is substantially parallel to the NFT. The sloped surface is sloped at least twenty-five and not more than sixty-five degrees with respect to the NFT-facing surface. The coil(s) energize the write pole(s).
摘要翻译：描述了一种用于提供与激光器耦合的能量辅助磁记录（EAMR）传感器的方法和系统。 EAMR传感器在使用过程中具有驻留在介质附近的空气轴承表面（ABS）。该方法和系统包括提供波导，近场换能器（NFT），写极和线圈。波导将能量从激光器引向ABS。 NFT与波导耦合，并将能量聚焦到介质上。写极包括用于向介质提供磁场的线圈和耦合到线圈的轭。该线圈包括面向ABS的表面，倾斜表面和面向ABS和倾斜表面之间的面向NFT的表面。面向NFT的表面基本上平行于NFT。倾斜的表面相对于面向NFT的表面倾斜至少二十五度且不超过六十五度。线圈使写入极点通电。

12. 发明授权

US07660080B1 Read/write head with dynamic flying height control by magnetostriction 失效
标题翻译：通过磁致伸缩具有动态飞行高度控制的读/写头
公开(公告)号：US07660080B1
公开(公告)日：2010-02-09
申请号：US10837490
申请日：2004-04-30
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/56 , G11B21/24
CPC分类号： G11B5/6005 , G11B5/3133
摘要： A read/write head for use in a data storage device to control the low dynamic flying height in order to achieve high data recording storage capacity of magnetic hard drives. The read/write head is designed for use in a data storage device that includes a storage medium having a recording surface. The head comprises a pole tip region and an actuator. In turn, the actuator includes an excitation source for generating a magnetic field, and a magnetostrictive plate for expanding in response to the magnetic field, resulting in a protrusion in a section of the pole tip region along a direction towards the recording surface, so that the head flies above the recording surface at a flying height lower than a nominal flying height.
摘要翻译：一种用于数据存储设备的读/写头，用于控制低动态飞行高度，以实现磁性硬盘驱动器的高数据记录存储容量。读/写头设计用于包括具有记录表面的存储介质的数据存储设备。头包括极尖区域和致动器。继而，致动器包括用于产生磁场的激励源和用于响应于磁场而扩展的磁致伸缩板，导致极尖区域沿着朝向记录表面的方向的一部分突出，使得头部在低于标称飞行高度的飞行高度处在记录表面上方飞行。

13. 发明授权

US07126790B1 Magnetic head for perpendicular recording with magnetic loop providing non-perpendicular write field 有权
标题翻译：磁头垂直记录，磁环提供非垂直写入场
公开(公告)号：US07126790B1
公开(公告)日：2006-10-24
申请号：US10724309
申请日：2003-11-26
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/3116 , G11B2005/0002 , G11B2005/001
摘要： A magnetic head for writing information on perpendicular media has a write pole tip and a return pole tip with a media-facing area at least two orders of magnitude greater than that of the write pole tip, the return pole tip is spaced from a trailing corner of the write pole tip by a submicron nonferromagnetic gap. Magnetic flux emanating from the write pole tip is strongest adjacent the trailing corner and directed at an angle that is not perpendicular to the write pole tip. The angled flux provides increased torque to rotate magnetic dipoles in the adjacent media layer that are oriented substantially perpendicular to the disk surface. The media may have a soft magnetic underlayer that is spaced from the write pole tip by a distance similar to the gap spacing.
摘要翻译：用于在垂直介质上写入信息的磁头具有写磁极尖端和返回极尖端，其中介质面积比写入磁极尖端大至少两个数量级，返回磁极尖端与后角的写极尖由亚微米非铁磁隙隙。从写入极尖发出的磁通量最靠近后角并以不垂直于写入极尖的角度指向。角度通量提供增加的扭矩以旋转基本上垂直于盘表面定向的相邻介质层中的偶极子。介质可以具有与写磁极尖端间隔一段类似于间隙间隔的软磁性底层。

14. 发明授权

US07126788B1 Trailing edge recording magnetic head with reversed double bias coil and deflection pole for perpendicular recording with a non-perpendicular write field 有权
标题翻译：具有反向双偏置线圈的跟踪记录磁头和用于垂直记录的非垂直写入场的偏转极
公开(公告)号：US07126788B1
公开(公告)日：2006-10-24
申请号：US10724385
申请日：2003-11-26
申请人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
发明人： Francis H. Liu , Kroum S. Stoev , Yugang Wang
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/17 , G11B2005/0002
摘要： A magnetic head for writing information on perpendicular media has a write pole tip, a return pole tip and a deflection pole tip is disclosed. The return pole tip has a media-facing area at least two orders of magnitude greater than that of the write pole tip, and the deflection pole tip is spaced from a trailing corner of the write pole tip by a submicron nonferromagnetic gap. Magnetic flux emanating from the write pole tip is strongest adjacent the trailing corner and directed at an angle that is not perpendicular to the write pole tip. The angled flux provides increased torque to rotate magnetic dipoles in the adjacent media layer that are oriented substantially perpendicular to the disk surface. The media may have a soft magnetic underlayer that is spaced from the write pole tip by a distance similar to the gap spacing.
摘要翻译：用于在垂直介质上写入信息的磁头具有写极端，回极极端和偏转极尖。返回极端部具有比写入磁极尖端大至少两个数量级的面向介质的区域，并且偏转极尖端与写入磁极尖端的后角部分间隔有亚微米非铁磁隙。从写入极尖发出的磁通量最靠近后角并以不垂直于写入极尖的角度指向。角度通量提供增加的扭矩以旋转基本上垂直于盘表面定向的相邻介质层中的偶极子。介质可以具有与写磁极尖端间隔一段类似于间隙间隔的软磁性底层。

15. 发明授权

US07729087B1 Magnetic recording head with resistive heating element located near the write coil 失效
标题翻译：具有位于写入线圈附近的电阻加热元件的磁记录头
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。

16. 发明授权

US07372665B1 Magnetic recording head with resistive heating element located near the write coil 有权
标题翻译：具有位于写入线圈附近的电阻加热元件的磁记录头
公开(公告)号：US07372665B1
公开(公告)日：2008-05-13
申请号：US11039635
申请日：2005-01-18
申请人： Kroum S. Stoev , Suping Song , Tao Pan
发明人： Kroum S. Stoev , Suping Song , Tao Pan
IPC分类号： G11B5/147
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, with a thin-film transducer disposed on the trailing surface of the slider body near the trailing edge. The thin-film transducer includes a coil embedded between first and second poles. A resistive heating element is disposed adjacent and electrically insulated from, the coil. Application of power to the resistive heating element causes expansion of at least the first and second poles.
摘要翻译：磁头包括滑块主体，其具有在后缘处会合空气轴承表面的后表面，薄片换能器设置在靠近后缘的滑块体的后表面上。薄膜换能器包括嵌入在第一和第二极之间的线圈。电阻加热元件设置成与线圈相邻并与之电绝缘。对电阻加热元件的电力施加导致至少第一和第二极的膨胀。

17. 发明授权

US07729086B1 Perpendicular magnetic recording head with dynamic flying height heating element disposed below turns of a write coil 有权
标题翻译：具有动态飞行高度加热元件的垂直磁记录头位于写入线圈的下方
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。

18. 发明授权

US07522379B1 Write element with recessed pole and heat sink layer for ultra-high density writing 有权
标题翻译：写入元件具有凹陷极和散热层，用于超高密度写入
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。

19. 发明授权

US08351307B1 Trailing edge optimized near field transducer having non-rectangular pin cross section 有权
标题翻译：后沿优化近场传感器具有非矩形销截面
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。

20. 发明授权

US08320219B1 Trailing edge optimized near field transducer 有权
标题翻译：后沿优化近场传感器
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。

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