专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

US20110164334A1 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：US20110164334A1
公开(公告)日：2011-07-07
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 , G11B5/02
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。

72. 发明申请

US20100328816A1 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：US20100328816A1
公开(公告)日：2010-12-30
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： G11B5/17
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。

73. 发明申请

US20100315735A1 Plasmon antenna with magnetic core for thermally assisted magnetic recording 有权
标题翻译：带磁芯的等离子体天线，用于热辅助磁记录
公开(公告)号：US20100315735A1
公开(公告)日：2010-12-16
申请号：US12456290
申请日：2009-06-15
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： G11B5/02
CPC分类号： G11B5/314 , G11B5/02 , G11B5/3116 , G11B5/3146 , G11B5/6088 , G11B2005/0005 , G11B2005/0021 , Y10T29/49032
摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the maximum gradient of the magnetic recording field should be concentrated in the small region being heated. Typically this does not occur because the spot being heated by the antenna is offset from the position at which the magnetic pole concentrates its magnetic field. The present invention incorporates a magnetic core within a 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 edge plasmons being generated in a conducting layer surrounding the antenna's magnetic core.
摘要翻译： TAMR（热辅助磁记录）写头使用等离子体天线中激光产生的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。为了使TAMR头能够最有效地运行，磁记录场的最大梯度应该集中在被加热的小区域中。通常这不会发生，因为被天线加热的点偏离磁极集中其磁场的位置。本发明在等离子体激元天线内结合有磁芯，因此天线有效地成为磁极的延伸，并产生磁场，其最大梯度与在天线的磁芯周围的导电层中产生的边缘等离子体激元加热的区域重叠。

74. 发明申请

US20100277832A1 PMR writer device with multi-level tapered write pole 有权
标题翻译： PMR写入器，具有多级锥形写入极
公开(公告)号：US20100277832A1
公开(公告)日：2010-11-04
申请号：US12387534
申请日：2009-05-04
申请人： Zhigang Bai , Kowang Liu , Yan Wu , Moris Dovek
发明人： Zhigang Bai , Kowang Liu , Yan Wu , Moris Dovek
IPC分类号： G11B5/127
CPC分类号： G11B5/398 , G11B5/1278 , G11B5/3116 , G11B5/315 , G11B5/3163 , G11B5/3183 , G11B5/3186 , Y10T29/49032 , Y10T29/49041 , Y10T29/49044 , Y10T29/49048
摘要： A perpendicular magnetic recording (PMR) head is fabricated with a multi-level tapered write pole. The write pole comprises a main pole with a tapered tip on which is formed at least one yoke that has a tapered edge. The edge of the yoke is recessed from the ABS of the tapered tip, giving the write pole a stepped profile. The tapered tip can be two sloped surfaces that are symmetric about a mid plane of the main pole or the taper can be a single sloped edge on the leading side or the trailing side of the pole. The yoke structure can consist of a single yoke formed on one side of the main pole or it can consist of two yokes formed symmetrically on both the leading and trailing sides of the main pole. Other yoke/pole combinations are also described as are various shield formations. The write pole structure creates an efficient channeling of magnetic flux to the ABS surface of the pole tip which produces magnetic recording field at high area densities.
摘要翻译：垂直磁记录（PMR）头用多级锥形写柱制造。写入极包括具有锥形尖端的主极，其上形成有至少一个具有锥形边缘的轭。轭的边缘从锥形尖端的ABS凹入，给写极一个阶梯轮廓。锥形尖端可以是关于主极的中间平面对称的两个倾斜表面，或者锥形可以是在杆的前侧或后侧的单个倾斜边缘。轭结构可以由形成在主极的一侧上的单个磁轭组成，或者可以由在主极的前后两侧对称地形成的两个磁轭组成。其他轭/杆组合也被描述为各种盾构形式。写磁极结构产生磁通量到磁极尖端的ABS表面的有效的通道，其产生高区域密度的磁记录场。

75. 发明申请

US20100085666A1 Low noise magneto-resistive sensor utilizing magnetic noise cancellation 有权
标题翻译：利用磁噪声消除的低噪声磁阻传感器
公开(公告)号：US20100085666A1
公开(公告)日：2010-04-08
申请号：US12287279
申请日：2008-10-08
申请人： Yuchen Zhou , Kunliang Zhang , Yu-Hsai Chen , Tong Zhao , Moris Dovek
发明人： Yuchen Zhou , Kunliang Zhang , Yu-Hsai Chen , Tong Zhao , Moris Dovek
IPC分类号： G11B5/127 , B05D5/12
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3929 , G11B2005/3996
摘要： A magnetic sensor, formed from a pair of magnetically free layers located on opposing sides of a non-magnetic layer, and method for its manufacture, are described. Biasing these free layers to be roughly orthogonal to one another causes them to be magnetostatically coupled in a weak antiferromagnetic mode. This enables the low frequency noise spectra of the two free layers to cancel one another. Careful control of the SH/TW ratio is an important feature of the device
摘要翻译：描述了由位于非磁性层的相对侧上的一对磁性层形成的磁传感器及其制造方法。使这些自由层彼此大致正交地使它们以弱反铁磁模式静磁耦合。这使得两个自由层的低频噪声谱彼此抵消。仔细控制SH / TW比是设备的一个重要特征

76. 发明申请

US20090116145A1 Perpendicular shield pole writer with tapered main pole and tapered non-magnetic top shaping layer 有权
标题翻译：垂直屏蔽极写入器，带锥形主极和锥形非磁性顶部成型层
公开(公告)号：US20090116145A1
公开(公告)日：2009-05-07
申请号：US11982597
申请日：2007-11-02
申请人： Liejie Guan , Joe Smyth , Moris Dovek , Yoshitaka Sasaki , Cherng-Chyi Han
发明人： Liejie Guan , Joe Smyth , Moris Dovek , Yoshitaka Sasaki , Cherng-Chyi Han
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/23 , G11B5/3163
摘要： A PMR writer with a tapered main pole layer and tapered non-magnetic top-shaping layer is disclosed that minimizes trailing shield saturation. A second non-magnetic top shaping layer may be employed to reduce the effective TH size while the bulk of the trailing shield is thicker to allow a larger process window for back end processing. A sloped surface with one end at the ABS and a second end 0.05 to 0.3 microns from the ABS is formed at a 10 to 80 degree angle to the ABS and includes a sloped surface on the upper portion of the main pole layer and on the non-magnetic top shaping layer. An end is formed on the second non-magnetic top shaping layer at the second end of the sloped surface followed by forming a conformal write gap layer and then depositing the trailing shield on the write gap layer and along the ABS.
摘要翻译：公开了一种具有锥形主极层和锥形非磁性顶部成形层的PMR写入器，其使拖尾屏蔽饱和度最小化。可以采用第二非磁性顶部成形层来减小有效的TH尺寸，同时尾部屏蔽的大部分较厚以允许用于后端处理的较大的工艺窗口。在ABS处具有一端的倾斜表面和距离ABS的0.05至0.3微米的第二端与ABS形成10至80度的角度，并且包括在主极层的上部上的非倾斜表面，磁顶成型层。在倾斜表面的第二端处在第二非磁性顶部成形层上形成端部，随后形成共形写入间隙层，然后将后部屏蔽层沉积在写入间隙层上并沿着ABS。

77. 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。

78. 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。

79. 发明申请

US20050007706A1 Lead overlay bottom spin valve with improved side reading 失效
标题翻译：引脚覆盖底部旋转阀，改进了侧面读数
公开(公告)号：US20050007706A1
公开(公告)日：2005-01-13
申请号：US10915272
申请日：2004-08-10
申请人： Moris Dovek , Tai Min
发明人： Moris Dovek , Tai Min
IPC分类号： G11B5/31 , G11B5/39 , G11B5/127 , G11B5/33
CPC分类号： B82Y10/00 , G11B5/3116 , G11B5/313 , G11B5/3903 , Y10T29/49032 , Y10T29/49034 , Y10T29/49043 , Y10T29/49044 , Y10T29/49055
摘要： In bottom spin valves of the lead overlay type the longitudinal bias field that stabilizes the device tends to fall off well before the gap is reached. This problem has been overcome by inserting an additional antiferromagnetic layer between the hard bias plugs and the overlaid leads. This additional antiferromagnetic layer and the lead layer are etched in the same operation to define the read gap, eliminating the possibility of misalignment between them. The extra antiferromagnetic layer is also longitudinally biased so there is no falloff in bias strength before the edge of the gap is reached. A process for manufacturing the device is also described.
摘要翻译：在引线覆盖型的底部自旋阀中，稳定器件的纵向偏置场在达到间隙之前倾向于很好地脱落。通过在硬偏置插头和重叠引线之间插入附加的反铁磁层已经克服了这个问题。在相同的操作中蚀刻该额外的反铁磁层和引线层以限定读取间隙，从而消除它们之间的未对准的可能性。额外的反铁磁层也是纵向偏置的，所以在达到间隙的边缘之前，偏压强度没有衰减。还描述了用于制造该装置的方法。

80. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式