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91. 发明申请

US20150118851A1 METHOD FOR DIRECTED SELF-ASSEMBLY (DSA) OF BLOCK COPOLYMERS 有权
标题翻译：方法用于方向自组装（DSA）的嵌段共聚物
公开(公告)号：US20150118851A1
公开(公告)日：2015-04-30
申请号：US14067769
申请日：2013-10-30
申请人： HGST Netherlands B.V.
发明人： He Gao , Ricardo Ruiz , Lei Wan
IPC分类号： H01L21/308
CPC分类号： H01L21/0272 , C09D153/00 , G03F7/0002 , H01L21/02118 , H01L21/0337 , H01L21/3081 , H01L21/31058 , H01L21/31138
摘要： In directed self-assembly (DSA) of a block copolymer (BCP), a patterned sublayer on a substrate serves as a guiding chemical prepattern on which BCPs form more uniform and/or denser patterns. A layer of a blend of a BCP and functional homopolymers, referred to as inks, is deposited on the patterned sublayer and annealed to change the initial chemical prepattern to a 1:1-like chemical pattern that is more favorable to DSA. After annealing, the inks selectively distribute into blocks by DSA, and part of the inks graft on the substrate underneath the blocks. The BCP blend layer is then rinsed away, leaving the grafted inks A second layer of BCP is then deposited and annealed as a second DSA step to form alternating lines of the BCP components. One of the BCP components is removed, leaving lines of the other BCP component as a mask for patterning the substrate.
摘要翻译：在嵌段共聚物（BCP）的定向自组装（DSA）中，衬底上的图案化子层用作引导化学制剂图案，其中BCP形成更均匀和/或更密集的图案。将BCP和功能性均聚物（称为油墨）的共混物层沉积在图案化的子层上并进行退火，以将初始化学预制图改变为更有利于DSA的1:1类化学图案。退火后，油墨通过DSA选择性地分散到块中，并且部分油墨移植到块下面的基底上。然后将BCP共混物层冲洗掉，留下接枝的墨水然后沉积第二层BCP并作为第二DSA步骤退火以形成BCP组分的交替线。 BCP组件中的一个被去除，留下另一个BCP组件的线作为用于图案化衬底的掩模。

92. 发明授权

US09019655B1 Hard disk drive disk clamp having reduced radial stiffness 有权
标题翻译：具有减小的径向刚度的硬盘驱动器盘夹
公开(公告)号：US09019655B1
公开(公告)日：2015-04-28
申请号：US14315231
申请日：2014-06-25
申请人： HGST Netherlands B.V.
发明人： Gale D. Johnson
IPC分类号： G11B17/02 , G11B17/028
CPC分类号： G11B17/0284 , G11B17/0287
摘要： A hard disk drive disk clamp is described, in which flex is introduced into the clamp in the radial direction so that, for example, as the disk expands radially at a different rate than the clamp as the temperature increases, less distortion is affected to the disk because the clamp can flex radially. With less disk distortion there is less repeatable runout (RRO) and more precise track following. The disk clamp may have an I-shaped cross-section along the outer portion of the disk clamp, at the contact area with the disk, to provide the radial flex.
摘要翻译：描述了一种硬盘驱动器盘夹，其中挠曲沿径向方向被引入到夹具中，使得例如当盘随着温度升高时以与夹具不同的速率径向扩张时，较少的变形会受到因为夹具可以径向弯曲。随着磁盘失真的减少，可重复的跳动（RRO）和更精确的跟踪跟踪更少。磁盘夹具可以在与盘的接触区域处沿着盘夹的外部具有I形横截面，以提供径向弯曲。

93. 发明授权

US09019649B2 Error recovery based on applying current/voltage to a heating element of a magnetic head 有权
标题翻译：基于向磁头的加热元件施加电流/电压的误差恢复
公开(公告)号：US09019649B2
公开(公告)日：2015-04-28
申请号：US14260172
申请日：2014-04-23
申请人： HGST Netherlands B.V.
发明人： Yukimasa Okada , Katsumi Hoshino , Kouji Kataoka , Takashi Wagatsuma
IPC分类号： G11B21/02 , G11B20/18 , G11B5/02 , G11B21/12 , G11B21/22 , G11B5/60
CPC分类号： G11B20/18 , G11B5/02 , G11B5/607 , G11B21/12 , G11B21/22 , G11B2220/2516
摘要： In one embodiment, a magnetic disk device includes a magnetic disk medium, at least one magnetic head having at least one of: a magnetic read element configured to read data from the magnetic disk medium and a magnetic write element configured to write data to the magnetic disk medium, and a heating element configured to generate heat upon application of a voltage/current thereto, wherein the heating element is positioned on, near, or within the magnetic head, a drive mechanism for passing the magnetic disk medium over the at least one magnetic head, and a controller electrically coupled to the at least one magnetic head for controlling operation of the at least one magnetic head, wherein the controller is configured to retract the at least one magnetic head from a flying state above the magnetic disk medium and apply the voltage/current to the heating element while the magnetic head is retracted.
摘要翻译：在一个实施例中，磁盘装置包括磁盘介质，至少一个磁头，其具有以下至少一个：磁读取元件，被配置为从磁盘介质读取数据;磁写入元件，被配置为将数据写入磁磁盘介质和被配置为在施加电压/电流时产生热量的加热元件，其中所述加热元件位于所述磁头的附近或内部，驱动机构，用于使所述磁盘介质通过所述至少一个磁头以及与所述至少一个磁头电耦合以控制所述至少一个磁头的操作的控制器，其中所述控制器被配置为将所述至少一个磁头从所述磁盘介质上方的飞行状态缩回并应用在磁头收回时到加热元件的电压/电流。

94. 发明申请

US20150109700A1 SHINGLED MAGNETIC RECORDING SYSTEM WITH ADAPTIVE WRITE BUFFER AREA 审中-公开
标题翻译：具有自适应写缓冲区的SHINGLED MAGNETIC RECORDING SYSTEM
公开(公告)号：US20150109700A1
公开(公告)日：2015-04-23
申请号：US14057557
申请日：2013-10-18
申请人： HGST Netherlands B.V.
发明人： Hidekazu KASHIWASE , Hiroyasu TANABE , Hideki ZAITSU
IPC分类号： G11B5/596
CPC分类号： G11B5/59627 , G11B5/09 , G11B19/044
摘要： Techniques for writing data to a buffer region of a magnetic disk are described. In one example, a hard disk drive comprises a magnetic disk comprising a data buffer region including a first zone and a second zone. Data may be written to the magnetic disk using shingled magnetic recording (SMR) and the buffer region may be an exception region (E-region). A hard disk drive may be configured to calculate a position accuracy value associated with a data writing head. The hard disk drive may select one of the zones based on the position accuracy value. Further, a selected zone may have a determined zone format. The hard disk drive may be configured to write data to the selected zone using the determined zone format.
摘要翻译：描述了将数据写入磁盘缓冲区的技术。在一个示例中，硬盘驱动器包括包括包括第一区和第二区的数据缓冲区的磁盘。可以使用带状磁记录（SMR）将数据写入磁盘，并且缓冲区域可以是异常区域（E区域）。硬盘驱动器可以被配置为计算与数据写入头相关联的位置精度值。硬盘驱动器可以根据位置精度值来选择一个区域。此外，所选择的区域可以具有确定的区域格式。硬盘驱动器可能被配置为使用确定的区域格式将数据写入所选区域。

95. 发明申请

US20150109699A1 HEAT SINK FOR A SPIN TORQUE OSCILLATOR (STO) IN MICROWAVE ASSISTED MAGNETIC RECORDING (MAMR) 有权
标题翻译：用于微波辅助磁记录（MAMR）的旋转扭矩振荡器（STO）的散热
公开(公告)号：US20150109699A1
公开(公告)日：2015-04-23
申请号：US14060504
申请日：2013-10-22
申请人： HGST Netherlands B.V.
发明人： Carl Boone , Jianhua Li , Isao Nunokawa , Erhard Schreck , Mikito Sugiyama , Ikuya Tagawa , Yuta Udo
IPC分类号： G11B5/40 , G11B5/127
CPC分类号： G11B5/3116 , G11B5/3136 , G11B5/3146 , G11B2005/0024 , Y10T29/49032
摘要： In accordance with one embodiment, a magnetic head includes a main pole configured to emit a recording magnetic field for affecting a magnetic medium, spin torque oscillator (STO) device in electrical communication with and positioned above the main pole in a track direction, the STO device being configured to generate a high-frequency magnetic field which is superimposed with the recording magnetic field in order to record data to the magnetic medium when current flows to the STO device, and a heat sink positioned near the STO device, the heat sink being configured to reduce a temperature of the STO device when current flows to the STO device. In another embodiment, a method includes forming a heat sink behind a STO device in an element height direction perpendicular to a media facing surface, and/or on both sides of the STO device in a cross-track direction at the media facing surface.
摘要翻译：根据一个实施例，磁头包括被配置为发射用于影响磁介质的记录磁场的主极，在轨道方向上与主极电连通并位于主极上方的自旋扭矩振荡器（STO）装置，STO 器件被配置为产生与记录磁场叠加的高频磁场，以便当电流流向STO器件时将数据记录到磁介质，以及位于STO器件附近的散热器，散热器被配置为当电流流向STO装置时降低STO装置的温度。在另一个实施例中，一种方法包括在垂直于介质相对表面的元件高度方向和/或在STO器件的两侧上在介质相对表面上沿交叉轨道方向形成STO器件后面的散热器。

96. 发明申请

US20150105006A1 METHOD TO SUSTAIN MINIMUM REQUIRED ASPECT RATIOS OF DIAMOND GRINDING BLADES THROUGHOUT SERVICE LIFETIME 审中-公开
标题翻译：通过维修生命维持钻石切削刃最小要求的方法
公开(公告)号：US20150105006A1
公开(公告)日：2015-04-16
申请号：US14052380
申请日：2013-10-11
申请人： HGST Netherlands B.V.
发明人： Jacey R. BEAUCAGE , Christian R. BONHÔTE , Trevor W. OLSON
IPC分类号： B24D5/12 , B24D18/00 , B24D3/34
CPC分类号： B24D5/12 , B24D3/34 , B24D18/00
摘要： Embodiments of the present invention generally relate to a blade for isolating devices within a wafer and the method of isolating. The blade has a core material, a cutting material disposed on the core material, and a plating material covering a portion of the core and cutting materials. The edge of the blade is not covered by the plating material. During operation, a portion of the plating material is removed to expose the underlying core and cutting materials based on the wearing of the core and cutting materials at the edge of the blade.
摘要翻译：本发明的实施例一般涉及用于隔离晶片内的装置的刀片和隔离方法。刀片具有芯材，设置在芯材上的切割材料，以及覆盖芯的一部分和切割材料的镀覆材料。刀片的边缘不被电镀材料覆盖。在操作期间，去除电镀材料的一部分，以便基于在刀片边缘处的芯部和切割材料的磨损来暴露下面的芯和切割材料。

97. 发明申请

US20150103437A1 MICROWAVE- ASSISTED RECORDING HEAD WITH STABLE OSCILLATION 有权
标题翻译： MICROWAVE辅助记录头与稳定的振荡
公开(公告)号：US20150103437A1
公开(公告)日：2015-04-16
申请号：US14055769
申请日：2013-10-16
申请人： HGST Netherlands B.V.
发明人： Katsuro Watanabe , Yohji Maruyama
IPC分类号： G11B5/35
CPC分类号： G11B5/02 , G11B5/1278 , G11B5/3133 , G11B5/3146 , G11B5/40 , G11B2005/0024
摘要： A magnetic recording head for microwave-assisted magnetic recording is disclosed. In one embodiment, a magnetic recording head is for applying a magnetic field from a main pole of said magnetic recording head for recording data to a disk. Further comprising a spin torque oscillator adjacent to said magnetic recording head and is for generating a high-frequency magnetic field at a stable frequency and amplitude. Further comprising a capacitor connected to an upper electrode of said spin torque oscillator via a first resistor and a lower electrode of said spin torque oscillator via a second resistor.
摘要翻译：公开了一种用于微波辅助磁记录的磁记录头。在一个实施例中，磁记录头用于从所述磁记录头的主极施加磁场，用于将数据记录到磁盘。还包括与所述磁记录头相邻的旋转扭矩振荡器，用于以稳定的频率和幅度产生高频磁场。还包括经由第二电阻器经由所述自旋转矩振荡器的第一电阻器和下电极连接到所述自旋转矩振荡器的上电极的电容器。

98. 发明授权

US09007727B2 Magnetic head having CPP sensor with improved stabilization of the magnetization of the pinned magnetic layer 有权
公开(公告)号：US09007727B2
公开(公告)日：2015-04-14
申请号：US11879667
申请日：2007-07-17
申请人： Mustafa Michael Pinarbasi
发明人： Mustafa Michael Pinarbasi
IPC分类号： G11B5/33 , G11B5/127 , G11B5/39 , B82Y10/00 , B82Y25/00
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3929 , G11B2005/3996
摘要： A magnetic head having a CPP read head sensor that includes a layered sensor stack including an antiferromagnetic (AFM) layer, a pinned magnetic layer, and a free magnetic layer. The pinned magnetic layer is comprised of a high, positive magnetostriction material and has a thickness t and a height (H), such that the ratio (t/H) of the thickness t to the height H of the pinned magnetic layer is fabricated to be within the range of from approximately 1/10 to approximately 1/500. Ion milling is conducted at a grazing angle to the surface of the layer upon which the pinned magnetic layer is fabricated, where the ion beam is oriented in the direction of the desired magnetization of the pinned magnetic layer.

99. 发明授权

US09007724B1 Head structure with electric damage protection for a microwave-assisted hard disk drive 有权
标题翻译：用于微波辅助硬盘驱动器的电气损坏保护的头部结构
公开(公告)号：US09007724B1
公开(公告)日：2015-04-14
申请号：US14302549
申请日：2014-06-12
申请人： HGST Netherlands B.V.
发明人： Masaru Furukawa , Junguo Xu , Masato Shiimoto , Jianhua Li
IPC分类号： G11B5/33 , G11B5/48 , G11B21/02
CPC分类号： G11B5/48 , G11B5/314 , G11B5/40 , G11B2005/0024
摘要： Embodiments disclosed herein generally relate to the data storage field and hard disk drives (HDD) using microwave assisted magnetic recording (MAMR) technology. Aspects of the preferred embodiments are to prevent the breakdown of spin torque oscillators (STO) due to large amounts of current flowing through the STO during head/disk contact. A magnetic head slider is disposed above and spaced apart from a disk. A STO is formed on a section of the magnetic head slider. Two electrodes are coupled to the STO, and one electrode has a higher potential than the other electrode. A preamplifier is adapted to send a current through the two electrodes, resulting in the higher potential electrode protruding closer to the disk than the lower potential electrode. Current then flows from one electrode to the disk without flowing through the STO, and breakdown of the STO is prevented.
摘要翻译：本文公开的实施例通常涉及使用微波辅助磁记录（MAMR）技术的数据存储区域和硬盘驱动器（HDD）。优选实施例的方面是防止由于在头/盘接触期间流过STO的大量电流而导致的自旋转矩振荡器（STO）的故障。磁头滑块设置在盘的上方并与盘间隔开。在磁头滑块的一部分上形成STO。两个电极耦合到STO，一个电极具有比另一个电极更高的电位。前置放大器适合于通过两个电极发送电流，导致较低电位电极比较靠近磁盘的电位较高的电极。电流然后从一个电极流到盘而不流过STO，并且防止了STO的击穿。

100. 发明申请

US20150085395A1 MAGNETIC HEAD HAVING A LONG THROAT HEIGHT PINNED LAYER WITH A SHORT HEIGHT HARD BIAS LAYER 有权
标题翻译：具有长度高度的磁头，具有短的高度硬度层
公开(公告)号：US20150085395A1
公开(公告)日：2015-03-26
申请号：US14037254
申请日：2013-09-25
申请人： HGST Netherlands B.V.
发明人： Nobuo Yoshida , Hideki Mashima , Norihiro Iwata , Takahiro Ibusuki
IPC分类号： G11B5/39
CPC分类号： G11B5/3932 , G11B5/3909 , G11B5/3912 , Y10T29/49032
摘要： In one embodiment, a magnetic head includes a lower shield, a magnetoresistive (MR) film positioned above the lower shield, the MR film including a pinned layer, an intermediate layer positioned above the pinned layer, and a free layer positioned above the intermediate layer, the free layer being configured for sensing data on a magnetic medium, wherein a track width of the MR film is defined by a width of the free layer in a cross-track direction, a bias layer positioned on both sides of the MR film in the cross-track direction, a track insulating film positioned on both sides of the MR film in the cross-track direction and between the MR film and the bias layer, and an upper shield positioned above the bias layer and the MR film, wherein a length of the free layer in an element height direction perpendicular to an air bearing surface of the magnetic head is less than a length of the pinned layer in the element height direction.
摘要翻译：在一个实施例中，磁头包括位于下屏蔽层上方的下屏蔽，磁阻（MR）膜，MR膜包括钉扎层，位于钉扎层上方的中间层和位于中间层上方的自由层，所述自由层被配置用于感测磁介质上的数据，其中所述MR膜的轨道宽度由所述自由层在交叉轨道方向上的宽度限定，所述偏置层位于所述MR膜的两侧交叉轨道方向，位于MR膜的横向方向两侧和MR膜与偏置层之间的轨道绝缘膜，以及位于偏置层和MR膜上方的上屏蔽，其中a 在与磁头的空气支承面垂直的元件高度方向上的自由层的长度小于被钉扎层在元件高度方向上的长度。

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