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21. 发明授权

US08305711B2 Process of octagonal pole for microwave assisted magnetic recording (MAMR) writer 有权
标题翻译：微波辅助磁记录（MAMR）作者八角极的过程
公开(公告)号：US08305711B2
公开(公告)日：2012-11-06
申请号：US12660819
申请日：2010-03-03
申请人： Min Li , Cherng-Chyi Han , Kenichi Takano , Joe Smyth
发明人： Min Li , Cherng-Chyi Han , Kenichi Takano , Joe Smyth
IPC分类号： G11B5/187 , G11B5/127 , G11B5/02
CPC分类号： G11B5/314 , G11B5/1278 , G11B2005/0024
摘要： A microwave assisted magnetic recording writer is disclosed with an octagonal write pole having a top portion including a trailing edge that is self aligned to a spin transfer oscillator (STO). Leading and trailing edges are connected by two sidewalls each having three sections. A first section on each side is coplanar with the STO sidewalls and is connected to a sloped second section at a first corner. Each second section is connected to a third section at a second corner where the distance between second corners is greater than the distance between first corners. A method of forming the writer begins with a trapezoidal shaped write pole in an insulation layer. Two ion beam etch (IBE) steps are used to shape top and middle portions of the write pole and narrow the pole width to
摘要翻译：公开了一种具有八角写磁极的微波辅助磁记录装置，其具有包括与自旋转移振荡器（STO）自对准的后沿的顶部。前缘和后缘由具有三个部分的两个侧壁连接。每侧的第一部分与STO侧壁共面，并且在第一角处连接到倾斜的第二部分。每个第二部分连接到第二角处的第三部分，其中第二角之间的距离大于第一角之间的距离。一种形成写入器的方法从绝缘层中的梯形写入极开始。使用两个离子束蚀刻（IBE）步骤来形成写入极的顶部和中间部分，并将极宽度窄化到<50nm而不会破裂。最后，在STO上形成一个后挡板。

22. 发明授权

US08503271B2 Method of forming a plasmon antenna with magnetic core for thermally assisted magnetic recording 有权
标题翻译：用于磁辅助磁记录的磁芯形成等离子体天线的方法
公开(公告)号：US08503271B2
公开(公告)日：2013-08-06
申请号：US13551670
申请日：2012-07-18
申请人： Yuchen Zhou , Kenichi Takano , Xuhui Jin , Erhard Schreck , Moris Dovek , Joe Smyth
发明人： Yuchen Zhou , Kenichi Takano , Xuhui Jin , Erhard Schreck , Moris Dovek , Joe Smyth
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/02 , G11B5/3116 , G11B5/3146 , G11B5/6088 , G11B2005/0005 , G11B2005/0021 , Y10T29/49032
摘要： A method of forming a TAMR (Thermal Assisted Magnetic Recording) write head that uses the energy of optical-laser generated edge plasmons in a plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. The method incorporates forming a magnetic core within the plasmon antenna, so the antenna effectively becomes an extension of the magnetic pole and produces a magnetic field whose maximum gradient overlaps the region being heated by the edge plasmons generated in the conducting layer of the antenna surrounding the antenna's magnetic core.
摘要翻译：一种形成TAMR（热辅助磁记录）写头的方法，其使用等离子体激元中的激光产生的边缘等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。该方法包括在等离子体激元天线内形成磁芯，因此天线有效地成为磁极的延伸，并产生磁场，其最大梯度与被天线周围的天线导电层中产生的边缘等离子体激发加热的区域重叠天线的磁芯。

23. 发明授权

US08228634B2 Integrated focusing elements for TAMR light delivery system 有权
标题翻译：用于TAMR发光系统的集成聚焦元件
公开(公告)号：US08228634B2
公开(公告)日：2012-07-24
申请号：US12655767
申请日：2010-01-07
申请人： Xuhui Jin , Erhard Schreck , Joe Smyth , Moris Dovek
发明人： Xuhui Jin , Erhard Schreck , Joe Smyth , Moris Dovek
IPC分类号： G11B5/127
CPC分类号： G11B5/102 , G11B5/105 , G11B5/314 , G11B5/6088 , G11B2005/0021 , Y10T29/49032
摘要： A device to facilitate Thermally Assisted Magnetic Recording (TAMR), and a method for its manufacture, are described. One or more cylindrical lenses are used to focus light from a laser diode onto a wave-guide and a nearby plasmon antenna. Five embodiments of the invention are described, each one featuring a different way to couple the laser light to the optical wave-guide.
摘要翻译：描述了便于热辅助磁记录（TAMR）的装置及其制造方法。一个或多个柱面透镜用于将来自激光二极管的光聚焦到波导和附近的等离子体天线上。描述本发明的五个实施例，每个实施例具有将激光耦合到光波导的不同方式。

24. 发明授权

US08059496B1 Magnetic core plasmon antenna with recessed plasmon layer 有权
标题翻译：具有凹陷等离子体层的磁芯等离子体天线
公开(公告)号：US08059496B1
公开(公告)日：2011-11-15
申请号：US12804232
申请日：2010-07-16
申请人： Yuchen Zhou , Xuhui Jin , Kenichi Takano , Moris Dovek , Tobias Maletzky , Erhard Schreck , Joe Smyth
发明人： Yuchen Zhou , Xuhui Jin , Kenichi Takano , Moris Dovek , Tobias Maletzky , Erhard Schreck , Joe Smyth
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： Various embodiments of a TAMR head having a magnetic core antenna (MCA) with a recessed plasmon layer are disclosed. An end of the plasmon layer is separated from the ABS by a magnetic layer that transmits the plasmon mode from the plasmon layer and transmits magnetic flux from an adjacent main pole layer. Both of the MCA and magnetic layer may have a triangular shape from an ABS view. There may be a non-magnetic separation layer between the MCA magnetic core and the main pole. Furthermore, a magnetic shield may be included with a side at the ABS, a side facing an end of a waveguide that transmits electromagnetic radiation to the MCA, and a side facing an edge of the plasmon layer. The recessed plasmon layer allows an improved overlay of the thermal heating spot on the magnetic field gradient at the magnetic medium that provides better TAMR performance.
摘要翻译：公开了具有带凹陷等离子体层的磁芯天线（MCA）的TAMR磁头的各种实施例。等离子体激元层的一端通过从等离子体激元层传输等离子体模式的磁层与ABS分离，并从相邻的主极层传输磁通量。从ABS观点来看，MCA和磁性层都可以具有三角形形状。在MCA磁芯和主极之间可能存在非磁性分离层。此外，在ABS的一侧可以包括磁屏蔽，面向朝向MCA的电磁辐射的波导的端部的一侧以及面向等离子体层的边缘的一侧。凹入的等离子体膜层允许在磁介质上的磁场梯度上的热加热点的改进的叠加，从而提供更好的TAMR性能。

25. 发明申请

US20110292537A1 3-D self-focusing gap plasmon generator for TAMR 有权
标题翻译：用于TAMR的3-D自聚焦间隙等离子体发生器
公开(公告)号：US20110292537A1
公开(公告)日：2011-12-01
申请号：US12802082
申请日：2010-05-28
申请人： Xuhui Jin , Joe Smyth , Moris Dovek
发明人： Xuhui Jin , Joe Smyth , Moris Dovek
IPC分类号： G11B5/02
CPC分类号： G11B5/1278 , G11B5/314 , G11B2005/001 , G11B2005/0021
摘要： A device for implementing thermally assisted magnetic recording, using a TE mode laser diode, and method for using it, are described. This device is shaped internally so as to provide three-dimensional self-focusing of plasmon radiation, thereby improving the coupling efficiency between the optical wave-guide and the plasmon generator as a result of ensuring a large overlap between these two modes.
摘要翻译：描述了使用TE模式激光二极管实现热辅助磁记录的装置及其使用方法。该装置在内部成形，以提供等离子体激元辐射的三维自聚焦，从而通过确保这两种模式之间的大的重叠而提高光波导和等离子体发生器之间的耦合效率。

26. 发明授权

US08059366B2 Perpendicular magnetic recording head with a laminated pole 有权
标题翻译：带磁极的垂直磁记录头
公开(公告)号：US08059366B2
公开(公告)日：2011-11-15
申请号：US11879952
申请日：2007-07-19
申请人： Kenichi Takano , Lijie Guan , Yuchen Zhou , Joe Smyth , Moris Dovek
发明人： Kenichi Takano , Lijie Guan , Yuchen Zhou , Joe Smyth , Moris Dovek
IPC分类号： G11B5/147 , G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/147 , G11B5/3143
摘要： A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferromagnetic coupling between adjacent magnetic layers. Writability is improved when the trailing magnetic layer has a thickness greater than the thickness of other magnetic layers and preferably >25% of the total thickness of the magnetic layers. The thicknesses of the other magnetic layers may be equal or may become progressively smaller with increasing distance from the trailing magnetic layer. In another embodiment, the non-magnetic spacer between the trailing magnetic layer and the nearest magnetic layer is replaced by a magnetic spacer made of a soft magnetic material to promote magnetic coupling and effectively increase the thickness of the trailing magnetic layer.
摘要翻译：公开了一种用于PMR写入头的层叠写入极层，其中在衬底上以交替的方式形成多个“n”个磁性层和“n-1”个非磁性间隔物。非磁性间隔物促进相邻磁性层之间的交换去耦或反铁磁耦合。当后磁性层的厚度大于其它磁性层的厚度，优选磁性层的总厚度的25％时，写入性能得到改善。其他磁性层的厚度可以相等或随着与后磁性层的距离的增加而逐渐变小。在另一个实施例中，后磁性层和最近的磁性层之间的非磁性间隔物被由软磁材料制成的磁性间隔物代替，以促进磁耦合并有效地增加后磁层的厚度。

27. 发明授权

US08035930B2 Perpendicular magnetic recording write head with a side shield 有权
标题翻译：垂直磁记录头带侧面屏蔽
公开(公告)号：US08035930B2
公开(公告)日：2011-10-11
申请号：US11906717
申请日：2007-10-03
申请人： Kenichi Takano , Lijie Guan , Yiu Liu , Joe Smyth , Moris Dovek
发明人： Kenichi Takano , Lijie Guan , Yiu Liu , Joe Smyth , Moris Dovek
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： A side shield structure for a PMR write head is disclosed that narrows write width and minimizes adjacent track and far track erasure. The side shield structure on each side of the write pole has two sections. One section along the ABS and adjacent to the pole tip has a height (SSH1) defined by SSH1≦[(0.6×neck height)+0.08] microns. There is a non-magnetic gap layer between the first section and a second section that is formed adjacent to the flared sides of the main pole layer and serves to suction leakage flux from the flared portion and prevent unwanted flux from reaching the first side shield sections. A fabrication method is provided that includes electroplating the first side shield sections, depositing the non-magnetic gap layer, and then electroplating the second side shield sections. Subsequently, a main pole layer and a trailing shield are formed.
摘要翻译：公开了一种用于PMR写头的侧屏蔽结构，其减小写入宽度并使相邻轨道和远轨道擦除最小化。写磁极两侧的侧面屏蔽结构有两个部分。沿着ABS并且与极尖相邻的一个部分具有由SSH1＆nlE定义的高度（SSH1）; [（0.6×颈部高度）+0.08]微米。在第一部分和第二部分之间存在非磁性间隙层，该第二部分与主极层的扩张侧相邻形成，并用于从扩张部分吸收泄漏的焊剂，并防止不期望的焊剂到达第一侧面屏蔽部分。提供一种制造方法，其包括电镀第一侧屏蔽部分，沉积非磁隙层，然后电镀第二侧屏蔽部分。随后，形成主极层和后屏蔽。

28. 发明申请

US20110097602A1 External field robustness of read/write head shields 有权
标题翻译：读/写头屏蔽的外部场强鲁棒性
公开(公告)号：US20110097602A1
公开(公告)日：2011-04-28
申请号：US12589598
申请日：2009-10-26
申请人： Zhigang Bai , Yuchen Zhou , Joe Smyth , Moris Dovek , Yan Wu
发明人： Zhigang Bai , Yuchen Zhou , Joe Smyth , Moris Dovek , Yan Wu
IPC分类号： G11B5/33 , B44C1/22
CPC分类号： G11B5/1278 , G11B5/315 , G11B5/6011 , Y10T428/1171
摘要： An improved magnetic shield for a perpendicular magnetic write head is disclosed. Its main feature is a pair of tabs at the shield's bottom corners. Said tabs are significantly wider at their point of attachment to the shield than further away from the shield. The end portions of each tab slope upwards (away from the ABS) at an angle of about ten degrees. A process for manufacturing the shield is also disclosed.
摘要翻译：公开了用于垂直磁写头的改进的磁屏蔽。它的主要特征是盾牌底角上的一对标签。所述突片在其远离屏蔽件的位置处与屏蔽件的连接点明显更宽。每个翼片的端部以大约十度的角度向上（远离ABS）倾斜。还公开了一种用于制造屏蔽的工艺。

29. 发明授权

US08630152B2 3-D self-focusing gap plasmon generator for TAMR 有权
标题翻译：用于TAMR的3-D自聚焦间隙等离子体发生器
公开(公告)号：US08630152B2
公开(公告)日：2014-01-14
申请号：US12802082
申请日：2010-05-28
申请人： Xuhui Jin , Joe Smyth , Moris Dovek
发明人： Xuhui Jin , Joe Smyth , Moris Dovek
IPC分类号： G11B11/00
CPC分类号： G11B5/1278 , G11B5/314 , G11B2005/001 , G11B2005/0021
摘要： A device for implementing thermally assisted magnetic recording, using a TE mode laser diode, and method for using it, are described. This device is shaped internally so as to provide three-dimensional self-focusing of plasmon radiation, thereby improving the coupling efficiency between the optical wave-guide and the plasmon generator as a result of ensuring a large overlap between these two modes.
摘要翻译：描述了使用TE模式激光二极管实现热辅助磁记录的装置及其使用方法。该装置在内部成形，以提供等离子体激元辐射的三维自聚焦，从而通过确保这两种模式之间的大的重叠而提高光波导和等离子体发生器之间的耦合效率。

30. 发明申请

US20130148485A1 Planar Plasmon Generator with a Scalable Feature for TAMR 有权
标题翻译：具有TAMR可扩展功能的平面等离子体发生器
公开(公告)号：US20130148485A1
公开(公告)日：2013-06-13
申请号：US13316989
申请日：2011-12-12
申请人： Xuhui Jin , Tobias Maletzky , Suping Song , Dayu Zhou , Joe Smyth , Moris Dovek
发明人： Xuhui Jin , Tobias Maletzky , Suping Song , Dayu Zhou , Joe Smyth , Moris Dovek
IPC分类号： G11B13/04 , G11B7/1387
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser excited surface plasmons in a scalable planar plasmon generator to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. The planar plasmon generator is formed as a multi-layered structure in which one planar layer supports a propagating surface plasmon mode that is excited by evanescent coupling to an optical mode in an adjacent waveguide. A peg, which can be a free-standing element or an integral projection from one of the layers, is positioned between the ABS end of the generator and the surface of the recording medium, confines and concentrates the near field of the plasmon mode immediately around and beneath it.
摘要翻译： TAMR（热辅助磁记录）写头使用可扩展的平面等离子体发生器中的光激光激发表面等离激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。平面等离子体发生器形成为多层结构，其中一个平面层支持通过在相邻波导中的光学模式的渐逝耦合而被激发的传播表面等离子体模式。可以是独立元件或从其中一层的整体突起的钉定位在发生器的ABS端和记录介质的表面之间，将等离子体激元模式的近场限制并集中在周围在它下面。

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