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151. 发明申请

US20150325258A1 STIFF DISCRETE INSERT ARRAY FOR THERMAL PTR MANAGEMENT WITH DESIRED INDUCED STRESS STATE THAT REDUCES TENDENCY FOR WRITE POLE ERASURE 审中-公开
公开(公告)号：US20150325258A1
公开(公告)日：2015-11-12
申请号：US14803989
申请日：2015-07-20
申请人： HGST Netherlands B.V.
发明人： Quan-Chiu Harry LAM , Edward Hin Pong LEE , Xinjiang SHEN , Ning SHI
IPC分类号： G11B5/235 , C23C16/32 , C23C16/22 , G11B5/60
CPC分类号： G11B5/235 , C23C16/22 , C23C16/325 , G11B5/3116 , G11B5/3136 , G11B5/3163 , G11B5/6082
摘要： Embodiments of the present invention generally relate to a magnetic device having a discontinuous array of columns disposed near a magnetic pole. Each column has a length extending perpendicular to an air bearing surface and a width. The length is greater than the width.

152. 发明申请

US20150324134A1 SYSTEM AND METHOD FOR CACHING SOLID STATE DEVICE READ REQUEST RESULTS 有权
标题翻译：实时状态设备读取请求结果的系统和方法
公开(公告)号：US20150324134A1
公开(公告)日：2015-11-12
申请号：US14275468
申请日：2014-05-12
申请人： HGST Netherlands B.V.
发明人： Lee Anton Sendelbach , Jeffrey S. Werning
IPC分类号： G06F3/06 , G06F13/42 , G06F13/40 , G06F12/12 , G06F12/08
CPC分类号： G06F12/0868 , G06F3/0613 , G06F3/064 , G06F3/0656 , G06F3/0688 , G06F12/122 , G06F12/123 , G06F13/4022 , G06F13/4221 , G06F2212/604
摘要： Techniques for caching results of a read request to a solid state device are disclosed. In some embodiments, the techniques may be realized as a method for caching solid state device read request results comprising receiving, at a solid state device, a data request from a host device communicatively coupled to the solid state device, and retrieving, using a controller of the solid state device, a compressed data chunk from the solid state device in response to the data request. The techniques may further include decompressing the compressed data chunk, returning, to the host device, a block of the data chunk responsive to the data request, and caching one or more additional blocks of the data chunk in a data buffer for subsequent read requests.
摘要翻译：公开了用于将读请求的结果缓存到固态设备的技术。在一些实施例中，技术可以被实现为用于缓存固态设备读取请求结果的方法，包括在固态设备处从通信地耦合到固态设备的主机设备接收数据请求，以及使用控制器固态设备的响应于数据请求的来自固态设备的压缩数据块。这些技术可以进一步包括解压缩压缩的数据块，并响应于数据请求向主机设备返回数据块的块，以及在数据缓冲器中缓存数据块的一个或多个附加块以用于随后的读取请求。

153. 发明授权

US09177575B1 Tunneling magnetoresistive (TMR) read head with reduced gap thickness 有权
标题翻译：隧道磁阻（TMR）读头，间隙厚度减小
公开(公告)号：US09177575B1
公开(公告)日：2015-11-03
申请号：US14561265
申请日：2014-12-05
申请人： HGST Netherlands B.V.
发明人： Zheng Gao , Sangmun Oh , Susumu Okamura
IPC分类号： G11B5/39
CPC分类号： G11B5/3912 , G01R33/098 , G11B5/3909 , H01L43/08 , H01L43/10
摘要： A tunneling magnetoresistive (TMR) read head has a read gap with a reduced thickness. A multilayer seed layer includes a first ferromagnetic seed layer on the lower shield, a ferromagnetic NiFe alloy on the first seed layer, and a third seed layer of Ru or Pt on the NiFe seed layer. The first and NiFe seed layers are magnetically part of the lower shield, thereby effectively reducing the read gap thickness. A free layer/capping layer structure includes a multilayer ferromagnetic free layer and a Hf capping layer on the free layer. The free layer includes a B-containing upper layer in contact with the Hf capping layer prior to annealing. When the sensor is annealed Hf diffuses into the B-containing upper layer, forming an interface layer. The Hf-containing interface layer possesses negative magnetostriction, so the free layer is not required to contain NiFe.
摘要翻译：隧道磁阻（TMR）读头具有减小厚度的读取间隙。多层种子层包括下屏蔽上的第一铁磁种子层，第一籽晶层上的铁磁性NiFe合金，以及NiFe种子层上的Ru或Pt的第三晶种层。第一和NiFe种子层是下屏蔽的磁性部分，从而有效地减小读取间隙厚度。自由层/覆盖层结构包括多层铁磁自由层和自由层上的Hf覆盖层。自由层包括在退火之前与Hf覆盖层接触的含B的上层。当传感器退火时，Hf扩散到含B的上层中，形成界面层。含Hf的界面层具有负的磁致伸缩，因此自由层不需要含有NiFe。

154. 发明授权

US09165596B1 Magnetic recording disk drive with multiple preamplifiers and common transmission line with impedance compensation 有权
标题翻译：具有多个前置放大器和具有阻抗补偿的公共传输线的磁记录磁盘驱动器
公开(公告)号：US09165596B1
公开(公告)日：2015-10-20
申请号：US14656898
申请日：2015-03-13
申请人： HGST Netherlands B.V.
发明人： John Contreras , Nobumasa Nishiyama , Joey Martin Poss , Tuyen Van Trinh , Craig K. Yanagisawa , Yasunori Kubo
IPC分类号： G11B5/09 , G11B5/02 , G11B20/10
CPC分类号： G11B20/10009 , G11B5/012 , G11B5/09
摘要： A disk drive has multiple preamplifiers (preamps) connected to the system-on-a-chip (SOC) by a common transmission line with resistors between the preamps and the SOC. Each preamp includes a read resistor at the output of each read amplifier, and a write resistor at the input of each write driver. The resistors may be programmable resistors located in the preamps. The read resistors are at the source of the signal to the transmission line and the write resistors are at the termination of the signal from the transmission line. The read and write resistors provide impendence matching with the transmission line and the SOC when one of the preamps is selected as active, which enables the SOC to operate seamlessly with a common transmission line connected to all preamps.
摘要翻译：磁盘驱动器具有通过具有前置放大器和SOC之间的电阻的公共传输线连接到片上系统（SOC）的多个前置放大器（前置放大器）。每个前置放大器在每个读取放大器的输出端都有一个读取电阻，在每个写入驱动器的输入端都有一个写入电阻。电阻器可以是位于前置放大器中的可编程电阻器。读电阻位于传输线信号的源头，写电阻处于来自传输线的信号的终端。读取和写入电阻器在前置放大器中的一个被选择为有效时，提供与传输线和SOC匹配的阻抗，这使得SOC能够与连接到所有前置放大器的公共传输线无缝地操作。

155. 发明申请

US20150294679A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROLLING LAYERS 审中-公开
标题翻译：具有颗粒边界控制层的全磁性记录介质
公开(公告)号：US20150294679A1
公开(公告)日：2015-10-15
申请号：US14729015
申请日：2015-06-02
申请人： HGST Netherlands B.V.
发明人： Shun Tonooka , Kiwamu Tanahashi , Hiroyuki Nakagawa , Ichiro Tamai
IPC分类号： G11B5/66 , G11B5/84 , G11B5/65
CPC分类号： G11B5/66 , G11B5/65 , G11B5/84 , G11B5/851
摘要： In one embodiment, a perpendicular magnetic recording medium includes an oxide recording layer including an oxide and a non-oxide recording layer which does not contain an oxide positioned above the oxide recording layer. The oxide recording layer includes a first recording layer, a second recording layer, a third recording layer, and a fourth recording layer. Also, an oxide concentration of the first recording layer is greater than an oxide concentration of the second recording layer, an oxide concentration of the third recording layer is greater than an oxide concentration of the fourth recording layer, and the oxide concentration of the third recording layer is greater than the oxide concentration of the second recording layer.
摘要翻译：在一个实施例中，垂直磁记录介质包括氧化物记录层，该氧化物记录层包括不包含位于氧化物记录层上方的氧化物的氧化物和非氧化物记录层。氧化物记录层包括第一记录层，第二记录层，第三记录层和第四记录层。此外，第一记录层的氧化物浓度大于第二记录层的氧化物浓度，第三记录层的氧化物浓度大于第四记录层的氧化物浓度，第三记录层的氧化物浓度层比第二记录层的氧化物浓度大。

156. 发明授权

US09147415B2 HAMR head spot-size converters with secondary index confinement 有权
标题翻译：具有次级指数限制的HAMR头点光源转换器
公开(公告)号：US09147415B2
公开(公告)日：2015-09-29
申请号：US14136414
申请日：2013-12-20
申请人： HGST Netherlands B.V.
发明人： Thomas William Clinton , Barry C. Stipe , Juraj Topolancik
IPC分类号： G11B11/00 , G11B5/48 , G11B5/00
CPC分类号： G11B5/4866 , G02B6/1228 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： The present invention generally relates to a HAMR head having not only a tapered core for the SSC, but additionally a secondary confinement material in the cladding surrounding the core taper. The secondary confinement material prevents diverging light from the laser diode from spreading so that the light is coupled into the core of the SSC. The secondary confinement material is a symmetric structure that surrounds the core of the SSC on all sides so that high conversion efficiency is achieved for short taper lengths.
摘要翻译：本发明一般涉及一种HAMR头，其不仅具有用于SSC的锥形芯，而且还包括围绕芯锥的包层中的次级限制材料。次级限制材料防止来自激光二极管的发散光扩散，使得光耦合到SSC的核心中。二次约束材料是在所有侧面上围绕SSC的芯的对称结构，使得对于短锥度长度实现高转换效率。

157. 发明授权

US09129634B1 Integrated compound DBR laser for HAMR applications 有权
标题翻译：用于HAMR应用的集成复合DBR激光器
公开(公告)号：US09129634B1
公开(公告)日：2015-09-08
申请号：US14307451
申请日：2014-06-17
申请人： HGST Netherlands B.V.
发明人： Thomas Dudley Boone, Jr. , Juraj Topolancik
IPC分类号： G11B5/127 , G11B5/60 , G11B5/00
CPC分类号： G11B5/4866 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： Embodiments disclosed herein generally relate to a magnetic write head including a media facing surface and a surface opposite the media facing surface. The magnetic write head further includes a reflector extending from the surface opposite the media facing surface toward the media facing surface. A semiconductor laser diode gain region protrudes out of the surface opposite the media facing surface, and the reflector helps optimizing the optical energy generated in the semiconductor laser diode gain region to be a single mode over a large current and temperature range.
摘要翻译：本文公开的实施例通常涉及包括介质面向表面和与介质相对表面相对的表面的磁性写入头。磁性写入头还包括从与介质相对的表面相对的表面朝向与介质相对的表面延伸的反射器。半导体激光二极管增益区域从与介质相对表面相反的表面伸出，并且反射器有助于在半导体激光二极管增益区域中产生的光能在大电流和温度范围内优化成单模。

158. 发明授权

US09129621B1 MAMR head with inclined MAMR head body 有权
标题翻译： MAMR头与倾斜的MAMR头体
公开(公告)号：US09129621B1
公开(公告)日：2015-09-08
申请号：US14620557
申请日：2015-02-12
申请人： HGST Netherlands B.V.
发明人： Hisashi Kimura , Kenji Sugiura , Yuta Udo , Katsuro Watanabe
IPC分类号： G11B5/33
CPC分类号： G11B5/33 , G11B5/235 , G11B5/3116 , G11B5/3146 , G11B2005/0024
摘要： A microwave-assisted recording head comprises a main pole configured to emit a recording magnetic field for affecting a magnetic medium, the main pole serving as a first electrode and having a front portion at an air bearing surface (ABS) and a rear portion extending from the front portion. A microwave oscillator is positioned on a trailing side surface of the main pole. The trailing-side surface of the main pole forms a flat plane along the front and rear portions and is inclined with respect to a leading side surface at the front portion. The head body is inclined at an acute angle to the ABS, such that an acute angle, between 10 and 30 degrees, is formed between the trailing side surface of the main pole and the ABS.
摘要翻译：微波辅助记录头包括主极，该主极被配置为发射用于影响磁介质的记录磁场，主极用作第一电极，并且在空气轴承表面（ABS）处具有前部，并且后部从前部。微波振荡器位于主极的后侧表面。主杆的后侧表面沿着前后部形成平面，并且相对于前部的前侧面倾斜。头部主体与ABS倾斜成锐角，使得在主极的后侧表面和ABS之间形成10至30度的锐角。

159. 发明申请

US20150248900A1 MULTI-TRACK READER FOR IMPROVED SIGNAL TO NOISE RATIO 有权
标题翻译：用于改善噪声信号的多轨读取器
公开(公告)号：US20150248900A1
公开(公告)日：2015-09-03
申请号：US14194552
申请日：2014-02-28
申请人： HGST Netherlands B.V.
发明人： Sharat Batra , Jonathan D. Coker , Travis R. Oenning
IPC分类号： G11B5/29 , G11B20/10
CPC分类号： G11B5/29 , G11B5/012 , G11B5/09 , G11B5/33 , G11B5/39 , G11B5/3945 , G11B5/3948 , G11B5/3951 , G11B5/3958 , G11B5/3977 , G11B20/10009 , G11B20/10305
摘要： A system according to one embodiment includes a magnetic head having a plurality of sensors arranged to simultaneously read at least three immediately adjacent data tracks on a magnetic medium, wherein none of the sensors share more than one lead with any other of the sensors. Such embodiment may be implemented in a magnetic data storage system such as a disk drive system, which may include a magnetic head, a drive mechanism for passing a magnetic medium (e.g., hard disk) over the magnetic head, and a controller electrically coupled to the magnetic head.
摘要翻译：根据一个实施例的系统包括具有多个传感器的磁头，所述多个传感器布置成在磁介质上同时读取至少三个紧邻的数据轨道，其中，所述传感器中的任一个与所述传感器中的任何其它传感器共享多于一个引线。这样的实施例可以在诸如磁盘驱动器系统的磁数据存储系统中实现，磁盘驱动器系统可以包括磁头，用于使磁介质（例如，硬盘）通过磁头的驱动机构，以及控制器，电耦合到磁头。

160. 发明申请

US20150243514A1 METHOD FOR DIRECTED SELF-ASSEMBLY (DSA) OF A BLOCK COPOLYMER (BCP) USING A BLEND OF A BCP WITH FUNCTIONAL HOMOPOLYMERS 有权
标题翻译：使用BCP与功能性共聚物混合的嵌段共聚物（BCP）的方向自组装（DSA）的方法
公开(公告)号：US20150243514A1
公开(公告)日：2015-08-27
申请号：US14707315
申请日：2015-05-08
申请人： HGST Netherlands B.V.
发明人： Ricardo Ruiz , Lei Wan
IPC分类号： H01L21/308 , H01L21/027
CPC分类号： H01L21/3086 , B81C1/00031 , B81C2201/0149 , C09D153/00 , G03F7/0002 , H01L21/02118 , H01L21/0271 , H01L21/0272 , H01L21/0273 , H01L21/0337 , H01L21/0338 , H01L21/3081 , H01L21/31058 , H01L21/31138
摘要： A method for directed self-assembly (DSA) of block copolymers (BCPs) uses a BCP blend with a small portion of functional homopolymers, called “inks”, before deposition and annealing of the BCP. A substrate has a patterned sublayer formed on it. The BCP blend is deposited on the patterned sublayer and annealed. The BCP blend is guided by the sublayer pattern. The inks selectively distribute into blocks, and part of the inks graft on the substrate underneath the blocks. The BCP blend layer is rinsed away, leaving the grafted inks. The grafted inks form a chemical contrast pattern that has the same geometry with the BCP bulk morphology. This process is repeated, which results in the grafted inks forming a thicker and denser chemical contrast pattern. This chemical contrast pattern of grafted inks is used for the DSA of a BCP that self-assembles as lamellae perpendicular to the substrate.
摘要翻译：嵌段共聚物（BCP）的定向自组装（DSA）的方法在BCP的沉积和退火之前使用具有少量功能均聚物的BCP共混物，称为“油墨”。衬底上形成有图案化的子层。将BCP共混物沉积在图案化的子层上并退火。 BCP混合物由子层图案引导。油墨选择性地分配到块中，并且部分油墨移植到块下面的基底上。将BCP混合层冲洗掉，留下接枝的油墨。接枝油墨形成与BCP体积形态具有相同几何形状的化学对比图案。重复该过程，这导致接枝的油墨形成更厚和更致密的化学对比度图案。接枝油墨的这种化学对比图案用于自组装成垂直于衬底的薄片的BCP的DSA。

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