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61. 发明申请

US20080273277A1 Composite shield structure of PMR writer for high track density 有权
标题翻译：用于高轨道密度的PMR写入器的复合屏蔽结构
公开(公告)号：US20080273277A1
公开(公告)日：2008-11-06
申请号：US11787016
申请日：2007-04-13
申请人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
发明人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.
摘要翻译：通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。在写极的上表面之上形成一定距离的后屏蔽，在写极的底表面下方形成一定距离的前屏蔽，以及形成在写柱的每一侧上的部分的局部侧屏蔽。部分侧屏蔽厚度小于写入极的厚度。每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。大写字杆的喇叭角为45度至75度。

62. 发明授权

US08614860B2 PMR head with integrated side shield (ISS) 有权
标题翻译：带集成侧护罩（ISS）的PMR头
公开(公告)号：US08614860B2
公开(公告)日：2013-12-24
申请号：US13373172
申请日：2011-11-07
申请人： Cherng-Chyi Han , Lijie Guan , Joe Smyth , Moris Dovek
发明人： Cherng-Chyi Han , Lijie Guan , Joe Smyth , Moris Dovek
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A PMR head comprises a substrate, a magnetic pole formed over the substrate, the pole having a pole tip having a cross-sectional tapered shape wherein the pole tip is surrounded by a write gap layer, an integrated shield comprising side shields on the substrate laterally surrounding the pole tip and a trailing shield overlying the pole tip and integral with the side shields.
摘要翻译： PMR头包括衬底，形成在衬底上的磁极，所述极具有具有横截面锥形形状的极尖，其中极尖由写间隙层围绕;集成屏蔽，包括在衬底上的侧屏蔽围绕极尖和覆盖极尖并且与侧护罩成一体的后挡板。

63. 发明授权

US08599656B2 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：US08599656B2
公开(公告)日：2013-12-03
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： G11B11/00
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。

64. 发明授权

US08023231B2 Composite shield structure of PMR writer for high track density 有权
标题翻译：用于高轨道密度的PMR写入器的复合屏蔽结构
公开(公告)号：US08023231B2
公开(公告)日：2011-09-20
申请号：US12807173
申请日：2010-08-30
申请人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
发明人： Lijie Guan , Moris Dovek , Joe Smyth , Yoshitaka Sasaki
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface of the write pole, and a partial side shield having a side shield section formed on each side of the write pole. The partial side shield thickness is less than that of the write pole. Each partial side shield section has a side that is parallel to the nearest write pole side and a top surface that is offset from the write pole top surface by 0 to 0.15 microns. A plurality of magnetic connections between two or more shield elements is employed to ensure correct magnetic potential. The large write pole has a flare angle of 45 to 75 degrees.
摘要翻译：通过在PMR写入器中并入复合屏蔽结构来实现改进的可编写性和相邻轨迹擦除的实质性减少。在写入磁极的上表面之上形成一定距离的尾部屏蔽件，在写入磁极的底表面下方形成一定距离的前屏蔽件，以及形成在屏蔽件的每一侧上的侧面屏蔽部分写柱部分侧屏蔽厚度小于写入极的厚度。每个局部侧屏蔽部分具有平行于最近的写入极侧的一侧和从写入磁极顶部表面偏移0至0.15微米的顶部表面。采用两个或更多个屏蔽元件之间的多个磁连接来确保正确的磁势。大写字杆的喇叭角为45度至75度。

65. 发明授权

US08432639B2 PMR writer with π shaped shield 有权
标题翻译： PMR作家与pi形盾
公开(公告)号：US08432639B2
公开(公告)日：2013-04-30
申请号：US12800039
申请日：2010-05-06
申请人： Yan Wu , Kenichi Takano , Moris Dovek
发明人： Yan Wu , Kenichi Takano , Moris Dovek
IPC分类号： G11B5/10 , G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315 , G11B5/3163
摘要： A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a pair of symmetrically separated side shields that extend from an edge of a trailing edge shield to form a shield with the shape of a π. The easy axis direction of the side shields is in the in-track direction. As a result, the side shields effectively shield the fringing fields of the magnetic pole tip from causing adjacent track erasures, while not adding their own fringing fields that could cause erasures even beyond adjacent tracks.
摘要翻译：垂直磁记录（PMR）头被制造成具有由一对对称分离的侧屏蔽横向屏蔽的极尖，该侧屏从后缘屏蔽的边缘延伸以形成具有pi形状的屏蔽。侧面屏蔽的易轴方向处于轨道内方向。结果，侧面屏蔽物有效地屏蔽磁极尖端的边缘区域而引起相邻的轨迹擦除，同时不添加它们自己的边缘区域，甚至可能导致相邻轨道之间的擦除。

66. 发明申请

US20050190493A1 Bottom pole structure with back-side steps 失效
标题翻译：底部柱结构带背面步骤
公开(公告)号：US20050190493A1
公开(公告)日：2005-09-01
申请号：US10789097
申请日：2004-02-27
申请人： Kenichi Takano , Moris Dovek
发明人： Kenichi Takano , Moris Dovek
IPC分类号： G11B5/31 , G11B5/127 , G11B5/147
CPC分类号： G11B5/1274
摘要： To generate a high data transfer rate from a magnetic write head, a faster flux rise time is needed. This often brings about severe excess saturation of the head and, as a result, adjacent track erasures often occur. This problem has been overcome by dividing the bottom pole into front and rear sections with a step between them. The write gap is part of the front section while the rear section (to which the front section is attached) is closer to the top pole so excess flux generated by higher write currents can be absorbed in a direction normal to the ABS instead of being diverted to the bottom pole shoulder.
摘要翻译：为了从磁写头产生高数据传输速率，需要更快的通量上升时间。这通常会导致头部的严重过度饱和，因此经常发生相邻的轨迹擦除。通过将底极分成前后两部分之间的台阶，已经克服了这个问题。写入间隙是前部的一部分，而后部（前部附接到其上）更接近顶极，因此由较高写入电流产生的过量磁通可以沿着垂直于ABS的方向吸收，而不是被转向到底极肩。

67. 发明申请

US20110273798A1 PMR writer with pi shaped shield 有权
标题翻译： PMR作家与pi形盾
公开(公告)号：US20110273798A1
公开(公告)日：2011-11-10
申请号：US12800039
申请日：2010-05-06
申请人： Yan Wu , Kenichi Takano , Moris Dovek
发明人： Yan Wu , Kenichi Takano , Moris Dovek
IPC分类号： G11B5/10
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/315 , G11B5/3163
摘要： A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a pair of symmetrically separated side shields that extend from an edge of a trailing edge shield to form a shield with the shape of a π. The easy axis direction of the side shields is in the in-track direction. As a result, the side shields effectively shield the fringing fields of the magnetic pole tip from causing adjacent track erasures, while not adding their own fringing fields that could cause erasures even beyond adjacent tracks.
摘要翻译：垂直磁记录（PMR）头被制造成具有由一对对称分离的侧屏蔽横向屏蔽的极尖，该侧屏从后缘屏蔽的边缘延伸以形成具有＆pgr形状的屏蔽。侧面屏蔽的易轴方向处于轨道内方向。结果，侧面屏蔽物有效地屏蔽磁极尖端的边缘区域而引起相邻的轨迹擦除，同时不添加它们自己的边缘区域，甚至可能导致相邻轨道之间的擦除。

68. 发明授权

US07327532B2 Bottom pole structure with back-side steps 失效
标题翻译：底部柱结构带背面步骤
公开(公告)号：US07327532B2
公开(公告)日：2008-02-05
申请号：US10789097
申请日：2004-02-27
申请人： Kenichi Takano , Moris Dovek
发明人： Kenichi Takano , Moris Dovek
IPC分类号： G11B5/187
CPC分类号： G11B5/1274
摘要： To generate a high data transfer rate from a magnetic write head, a faster flux rise time is needed. This often brings about severe excess saturation of the head and, as a result, adjacent track erasures often occur. This problem has been overcome by dividing the bottom pole into front and rear sections with a step between them. The write gap is part of the front section while the rear section (to which the front section is attached) is closer to the top pole so excess flux generated by higher write currents can be absorbed in a direction normal to the ABS instead of being diverted to the bottom pole shoulder.
摘要翻译：为了从磁写头产生高数据传输速率，需要更快的通量上升时间。这通常会导致头部的严重过度饱和，因此经常发生相邻的轨迹擦除。通过将底极分成前后两部分之间的台阶，已经克服了这个问题。写入间隙是前部的一部分，而后部（前部附接到其上）更接近顶极，因此由较高写入电流产生的过量磁通可以沿着垂直于ABS的方向吸收，而不是被转向到底极肩。

69. 发明授权

US08767349B2 Write head having recessed magnetic material in gap region 有权
公开(公告)号：US08767349B2
公开(公告)日：2014-07-01
申请号：US13367349
申请日：2012-02-06
申请人： Moris Dovek , Glen Garfunkel , Po Kang Wang
发明人： Moris Dovek , Glen Garfunkel , Po Kang Wang
IPC分类号： G11B5/127
CPC分类号： G11B5/2657 , Y10T29/49021 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： As track densities increase, it becomes increasingly important, while writing in a given track, not to inadvertently write data in adjoining tracks. This problem has been overcome by limiting the width of material in the ABS plane to what it is at the write gap. The part of the lower pole that is wider than this is recessed back away from the ABS, thereby greatly reducing its magnetic influence on adjacent tracks. Four different embodiments of write heads that incorporate this notion are described together with a description of a general process for their manufacture.

70. 发明授权

US08209848B2 Method of making a PMR writer with seamless shields 有权
标题翻译：制作具有无缝屏蔽的PMR写入器的方法
公开(公告)号：US08209848B2
公开(公告)日：2012-07-03
申请号：US12798560
申请日：2010-04-07
申请人： Zhigang Bai , Moris Dovek , Yan Wu , Cherng-Chyi Han , Jiun-Ting Lee
发明人： Zhigang Bai , Moris Dovek , Yan Wu , Cherng-Chyi Han , Jiun-Ting Lee
IPC分类号： G11B5/17 , G11B5/23
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163 , Y10T29/49039 , Y10T29/49043 , Y10T29/4906
摘要： A process (and the structure resulting therefrom) is described for manufacturing a magnetic write head in which there is no physical interface between the first and second trailing shields. This is achieved by laying down a sacrificial layer which is patterned to extend inwards towards the top yoke whereby the dimensions and shapes of the shields are defined.
摘要翻译：描述了一种用于制造其中在第一和第二后挡板之间没有物理接口的磁写头的过程（以及由此产生的结构）。这通过铺设牺牲层来实现，该牺牲层被图案化以朝向顶部轭部向内延伸，由此限定了屏蔽件的尺寸和形状。

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