专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US09378761B1 System for adjusting bias of relative magnetizations of ferromagnetic layers in a magnetoresistive sensor 有权
标题翻译：用于调整磁阻传感器中铁磁层的相对磁化偏压的系统
公开(公告)号：US09378761B1
公开(公告)日：2016-06-28
申请号：US14693009
申请日：2015-04-22
申请人： HGST Netherlands B.V.
发明人： David John Seagle
IPC分类号： G11B5/39 , G11B5/00
CPC分类号： G11B5/3932 , G11B5/3909 , G11B5/3954 , G11B2005/0018 , G11B2005/3996
摘要： A magnetoresistive sensing system includes a current-perpendicular-to-the-plane magnetoresistive (CPP-MR) read head and adjustable biasing circuitry connected to the read head for adjusting the relative magnetizations of one or more of the ferromagnetic layers in the read head. The biasing circuitry generates a bias current in the read head that generates a bias-adjusting magnetic field that acts on one or more of the ferromagnetic layers. For a conventional read head, the bias-adjusting field acts orthogonal to the field from the reference layer to change the angle between the magnetization of the free layer and the magnetization of the reference layer. For a scissoring-type read head, the bias-adjusting field acts parallel to the transverse bias field to change the angle between the magnetizations of the two free layers. This results in an improvement in the sensitivity of the read head to bring the soft error rate (SER) below an acceptable level.
摘要翻译：磁阻感测系统包括电流垂直于平面的磁阻（CPP-MR）读头和连接到读头的可调偏置电路，用于调节读头中一个或多个铁磁层的相对磁化。偏置电路在读取头中产生偏置电流，其产生作用在一个或多个铁磁层上的偏置调整磁场。对于传统的读取头，偏置调整场与来自参考层的场正交地作用，以改变自由层的磁化和参考层的磁化之间的角度。对于剪切式读取头，偏置调整场平行于横向偏置场起作用以改变两个自由层的磁化之间的角度。这导致读头的灵敏度提高，使软误码率（SER）低于可接受的水平。

32. 发明授权

US09368218B2 Fast secure erase in a flash system 有权
标题翻译：在闪存系统中快速安全擦除
公开(公告)号：US09368218B2
公开(公告)日：2016-06-14
申请号：US14506488
申请日：2014-10-03
申请人： HGST Netherlands B.V.
发明人： Pablo A. Ziperovich
IPC分类号： G11C16/10 , G11C16/14 , G11C16/34
CPC分类号： G11C16/16 , G11C11/5635 , G11C16/12 , G11C16/14 , G11C16/3445
摘要： A flash memory controller is configured to provide a first erase mode for erasing one or more groups of flash memory cells in a flash memory device using a plurality of erase pulses and a second erase mode for erasing the one or more groups of flash memory cells using a single erase pulse. The controller may receive a fast erase signal to erase the one or more groups of flash memory cells and, in response to the signal, switch operating parameters of the flash memory device from first parameters corresponding to the first erase mode to second parameters corresponding to the second erase mode, and instruct the flash memory device to perform an erase operation on the one or more groups of flash memory cells according to the second parameters. The controller may then verify that the erase operation was completed using the single erase pulse.
摘要翻译：闪速存储器控制器被配置为提供第一擦除模式，用于使用多个擦除脉冲擦除闪存器件中的一组或多组闪速存储器单元，以及第二擦除模式，用于擦除一组或多组闪存单元，单个擦除脉冲。控制器可以接收快速擦除信号以擦除一组或多组闪速存储器单元，并且响应于该信号，从对应于第一擦除模式的第一参数切换闪速存储器件的操作参数到对应于第一擦除模式的第二参数第二擦除模式，并且根据第二参数指示闪速存储器件对一组或多组闪存单元执行擦除操作。然后，控制器可以使用单个擦除脉冲来验证擦除操作是否完成。

33. 发明申请

US20160148632A1 HEAT ASSISTED MAGNETIC RECORDING (HAMR) MEDIA HAVING A HIGHLY ORDERED CRYSTALLINE STRUCTURE 有权
标题翻译：热辅助磁记录（HAMR）具有高阶结晶结构的介质
公开(公告)号：US20160148632A1
公开(公告)日：2016-05-26
申请号：US14555496
申请日：2014-11-26
申请人： HGST Netherlands B.V.
发明人： Olav Hellwig , Shikha Jain , Oleksandr Mosendz , Hans J. Richter , Dieter K. Weller
IPC分类号： G11B5/66 , G11B5/73 , G11B5/64
CPC分类号： G11B5/66 , G11B5/65 , G11B5/732
摘要： According to one embodiment, a magnetic recording medium includes: a substrate, a seed layer positioned above the substrate, and a magnetic recording layer structure positioned above the seed layer. The magnetic recording layer structure includes: a first magnetic recording layer having a plurality of FePtCu magnetic grains and a first segregant, and a second magnetic recording layer positioned above the first magnetic recording layer, the second magnetic recording layer having a plurality of FePt magnetic grains and a second segregant, where a Curie temperature of the first magnetic recording layer is lower than a Curie temperature of the second magnetic recording layer.
摘要翻译：根据一个实施例，磁记录介质包括：衬底，位于衬底上方的种子层和位于种子层上方的磁记录层结构。磁记录层结构包括：具有多个FePtCu磁性颗粒和第一分离体的第一磁记录层和位于第一磁记录层上方的第二磁记录层，第二磁记录层具有多个FePt磁性颗粒以及第二分离器，其中第一磁记录层的居里温度低于第二磁记录层的居里温度。

34. 发明申请

US20160148627A1 SPIN TORQUE OSCILLATOR WITH LOW MAGNETIC MOMENT AND HIGH PERPENDICULAR MAGNETIC ANISOTROPY MATERIAL 有权
标题翻译：旋转扭矩振荡器，具有低磁性和高次磁性各向异性材料
公开(公告)号：US20160148627A1
公开(公告)日：2016-05-26
申请号：US14548853
申请日：2014-11-20
申请人： HGST Netherlands B.V.
发明人： Keiichi NAGASAKA , Yo SATO , Masashige SATO , Susumu OKAMURA , Masato SHIIMOTO , Masukazu IGARASHI
IPC分类号： G11B5/35 , H03B15/00 , G11B5/17
CPC分类号： G11B5/35 , G11B5/314 , G11B5/607 , G11B2005/0024
摘要： Embodiments disclosed herein generally relate to a magnetic disk device employing a MAMR head. The MAMR head includes an STO. The STO comprises an underlayer, an SPL, an interlayer, an FGL, and a capping layer. The SPL is comprised of a high perpendicular magnetic anisotropy material. The SPL has a large effective perpendicular magnetic anisotropy field, and the SPL has a lower magnetic moment than the FGL. An applied current is adapted to flow in a direction from the FGL to the SPL resulting in the magnetization direction of the SPL being almost perpendicular to the FGL and anti-parallel to a head-gap magnetic field due to a relation between a first spin torque directed from the SPL to the FGL and a second spin torque directed from the FGL to the SPL.
摘要翻译：本文公开的实施例通常涉及采用MAMR头的磁盘装置。 MAMR头包括STO。 STO包括底层，SPL，中间层，FGL和覆盖层。 SPL由高垂直磁各向异性材料组成。 SPL具有大的有效垂直磁各向异性场，SPL具有比FGL低的磁矩。施加的电流适于沿着从FGL到SPL的方向流动，导致SPL的磁化方向几乎垂直于FGL，并且由于第一自旋转矩之间的关系而与头间隙磁场反平行从SPL引导到FGL，以及从FGL指向SPL的第二自旋扭矩。

35. 发明授权

US09343090B1 Magnetoresistive sensor having an Ir seed layer for improved pinned layer robustness 有权
标题翻译：具有Ir种子层的磁阻传感器，用于改善固定层坚固性
公开(公告)号：US09343090B1
公开(公告)日：2016-05-17
申请号：US14718018
申请日：2015-05-20
申请人： HGST Netherlands B.V.
发明人： Kouichi Nishioka
IPC分类号： G11B5/33
CPC分类号： G11B5/33 , G11B5/3909 , G11B5/3929 , G11B2005/3996
摘要： A magnetic sensor having an Ir seed layer for improved pinning robustness and improved sensor performance. The sensor includes an Ir seed layer formed directly beneath and in contact with a layer of antiferromagnetic material (AFM). The Ir seed layer improves the grain structure and smoothness of the above applied layers to significantly improve the performance and pinning robustness of the sensor. The use of the Ir seed layer reduces interlayer magnetic coupling of the layers, reduces surface roughness and increases the temperature at which the pinned layer looses it's pinning (i.e. raises the mean blocking temperature Tc of the pinned layer structure).
摘要翻译：一种具有Ir种子层的磁传感器，用于改善销钉坚固性并提高传感器性能。该传感器包括直接在一层反铁磁材料（AFM）下面形成的Ir种子层。 Ir种子层改善了上述涂层的晶粒结构和平滑度，从而显着提高了传感器的性能和牢固性。 Ir种子层的使用减少了层的层间磁耦合，降低了表面粗糙度，并且增加了被钉扎层失去其钉扎的温度（即提高被钉扎层结构的平均阻挡温度Tc）。

36. 发明授权

US09336809B2 Method for making an imprint template with data regions and non-data regions using block copolymers 有权
标题翻译：使用嵌段共聚物制作具有数据区和非数据区的印模模板的方法
公开(公告)号：US09336809B2
公开(公告)日：2016-05-10
申请号：US14471103
申请日：2014-08-28
申请人： HGST Netherlands B.V.
发明人： Hitesh Arora , Sripathi Vangipuram Canchi , Franck Dreyfus Rose , Ricardo Ruiz , Vipin Ayanoor-Vitikkate
IPC分类号： B44C1/22 , B23P15/00 , C03C25/00 , C23F1/00 , C03C25/68 , H01L21/00 , G11B5/84
CPC分类号： G11B5/84 , G11B5/855
摘要： A method to fabricate an imprint template for bit-patterned magnetic recording media using block copolymers (BCPs) integrates data region patterning and servo region patterning. A heat sink layer is formed on the imprint substrate only in the data regions. A sublayer for the BCP is deposited over both the data regions and the servo regions and patterned to form stripes in the data regions and servo features in the servo regions. A BCP is then deposited in both the data and servo regions. Only the BCP in the data regions is heated, which causes phase separation of the BCP in the data regions into the two BCP components. The selective heating may be accomplished by directed controlled laser radiation to only the data regions. The heat sink layer below the data regions absorbs the heat from the laser radiation, confining it to the data regions.
摘要翻译：使用嵌段共聚物（BCP）制造位图案磁记录介质的压印模板的方法集成了数据区域图案化和伺服区域图案化。在压印基板上仅在数据区域中形成散热层。用于BCP的子层沉积在数据区域和伺服区域上，并被图案化以在伺服区域中的数据区域和伺服特征中形成条纹。然后将BCP沉积在数据和伺服区域中。只有数据区域中的BCP被加热，这导致数据区域中的BCP相分离成两个BCP组件。可以通过定向控制的激光辐射仅对数据区域实现选择性加热。数据区域之下的散热层吸收激光辐射的热量，将其限制在数据区域。

37. 发明授权

US09336797B2 Extended spin torque oscillator 有权
标题翻译：扩展自旋扭矩振荡器
公开(公告)号：US09336797B2
公开(公告)日：2016-05-10
申请号：US14290768
申请日：2014-05-29
申请人： HGST Netherlands B.V.
发明人： Masukazu Igarashi , Masato Matsubara , Keiichi Nagasaka , Yo Sato , Masato Shiimoto , Masashige Sato
IPC分类号： G11B5/00 , G11B5/127
CPC分类号： G11B5/00 , G11B5/1278 , G11B5/23 , G11B5/235 , G11B5/3146 , G11B2005/0024
摘要： The present disclosure generally relates to a high-frequency oscillator for use in a recording device having a microwave-assisted magnetic recording head. The microwave-assisted magnetic recording head achieves a large assist effect by using an extended spin torque oscillator disposed between a main magnetic pole and a pole opposite the main magnetic pole. The spin torque oscillator obtains a strong high-frequency magnetic field and comprises a first non-magnetic spin scatterer, a reference layer, a first non-magnetic spin transfer layer, a first magnetic field generating layer, a second non-magnetic spin transfer layer, a second magnetic field generating layer, and a second non-magnetic spin scatterer. The spin torque oscillator has a drive current flowing though in the direction from the first magnetic field generating layer to the reference layer.
摘要翻译：本公开总体上涉及用于具有微波辅助磁记录头的记录装置中的高频振荡器。微波辅助磁记录头通过使用设置在主磁极和与主磁极相对的极之间的扩展旋转扭矩振荡器来实现大的辅助效果。旋转扭矩振荡器获得强的高频磁场，并且包括第一非磁性旋转散射体，参考层，第一非磁性自旋转移层，第一磁场产生层，第二非磁性自旋转移层，第二磁场产生层和第二非磁性旋转散射体。自旋转矩振荡器具有沿着从第一磁场产生层到参考层的方向流动的驱动电流。

38. 发明授权

US09336136B2 Apparatus, systems, and methods for providing wear leveling in solid state devices 有权
标题翻译：用于在固态设备中提供磨损均衡的装置，系统和方法
公开(公告)号：US09336136B2
公开(公告)日：2016-05-10
申请号：US14509400
申请日：2014-10-08
申请人： HGST Netherlands B.V.
发明人： Kanishk Rastogi , Sanoj Kizhakkekara Unnikrishnan , Anand Mitra
IPC分类号： G06F12/00 , G06F12/02
CPC分类号： G06F3/0608 , G06F3/0616 , G06F3/064 , G06F3/0652 , G06F3/0658 , G06F3/0679 , G06F12/0246 , G06F2212/1036 , G06F2212/7205 , G06F2212/7211
摘要： Embodiments of the present disclosure provides a memory-efficient mechanism for identifying memory blocks with a low wear count. More particularly, embodiments of the present disclosure provides a mechanism for identifying a memory block whose wear count is within the bottom p % of all wear counts associated with memory blocks in a storage system. If a memory controller always performs the garbage collection operation on a memory block whose wear count is within the bottom p % of all wear counts, then the memory controller is expected to utilize the remaining memory blocks (e.g., memory blocks whose wear count is within the upper (100−p) % of all wear counts) efficiently and level the wear count of at least the remaining memory blocks.
摘要翻译：本公开的实施例提供了一种用于识别具有低磨损计数的存储器块的存储器有效机构。更具体地，本公开的实施例提供了一种用于识别其磨损量在与存储系统中的存储器块相关联的所有磨损计数的底部p％内的存储器块的机制。如果存储器控制器总是对其磨损值在所有磨损计数的底部p％内的存储器块执行垃圾回收操作，则存储器控制器预期利用剩余的存储器块（例如，其磨损值在所有磨损计数的上限（100-p）有效地达到至少剩余的存储块的磨损量。

39. 发明申请

US20160125903A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM HAVING AN OXIDE SEED LAYER AND RU ALLOY INTERMEDIATE LAYER 审中-公开
标题翻译：具有氧化物种子层和RU合金中间层的全磁性记录介质
公开(公告)号：US20160125903A1
公开(公告)日：2016-05-05
申请号：US14530600
申请日：2014-10-31
申请人： HGST Netherlands B.V.
发明人： Ichiro Tamai , Tatsuya Hinoue , Shun Tonooka , Hiroaki Nemoto
IPC分类号： G11B5/738 , G11B5/127 , G11B5/84
CPC分类号： G11B5/1278 , G11B5/7325 , G11B5/7379
摘要： In one embodiment, a perpendicular magnetic recording medium includes a substrate; a soft magnetic underlayer positioned above the substrate; a seed layer structure positioned above the soft magnetic underlayer, the seed layer structure including a first seed layer and a second seed layer positioned above the first seed layer; an interlayer structure positioned above the seed layer structure, the interlayer structure including a first interlayer, a second interlayer positioned above the first interlayer, and a third interlayer positioned above the second interlayer; and a magnetic recording layer positioned above the interlayer structure, where the second seed layer includes a Ni alloy including at least one oxide, and where the first interlayer includes a Ru alloy.
摘要翻译：在一个实施例中，垂直磁记录介质包括基板; 位于基板上方的软磁性底层; 位于所述软磁性底层上方的种子层结构，所述种子层结构包括位于所述第一种子层上方的第一种子层和第二种子层; 位于种子层结构上方的层间结构，所述层间结构包括第一中间层，位于第一中间层上方的第二中间层和位于第二中间层上方的第三中间层; 以及位于所述层间结构上方的磁记录层，其中所述第二晶种层包括包含至少一种氧化物的Ni合金，并且其中所述第一中间层包括Ru合金。

40. 发明授权

US09312141B2 Vapor phase chemical mechanical polishing of magnetic recording disks 有权
标题翻译：磁记录盘的气相化学机械抛光
公开(公告)号：US09312141B2
公开(公告)日：2016-04-12
申请号：US14086927
申请日：2013-11-21
申请人： HGST Netherlands B.V.
发明人： Thomas E. Karis , Bruno Marchon , Bala K. Pathem , Franck D. Rose dit Rose , Kurt A. Rubin , Erhard Schreck
IPC分类号： H01L21/302 , H01L21/306 , B81C1/00 , H01L21/321 , G11B5/84 , B24B37/04
CPC分类号： H01L21/30625 , B24B37/048 , B81C1/00 , G11B5/8408 , H01L21/3212
摘要： A method for polishing a carbon overcoat of a magnetic media that results in a smooth surface free of carbon cluster debris. The method involves forming a magnetic disk having a carbon overcoat formed thereon. The carbon overcoat is then polished in the presence of ozone (O3). The heat from the polishing process along with the presence of the ozone, cause any carbon particles removed by the polishing to form CO2 gas so that there is no remaining carbon particle debris on the surface of the disk.
摘要翻译：一种用于抛光磁性介质的碳外涂层的方法，其导致没有碳簇碎片的光滑表面。该方法包括形成其上形成有碳覆盖层的磁盘。然后在臭氧（O 3）的存在下研磨碳外涂层。来自抛光工艺的热量随着臭氧的存在而导致通过抛光除去的任何碳颗粒形成CO 2气体，使得在盘的表面上不存在剩余的碳颗粒碎屑。

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