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公开(公告)号：US08982507B2
公开(公告)日：2015-03-17
申请号：US12879791
申请日：2010-09-10
申请人： Eric Meloche , Bin Lu , Lixin Jia , Jianhua Xue , John David Westwood , Mark Anthony Gubbins , Alexandru Cazacy
发明人： Eric Meloche , Bin Lu , Lixin Jia , Jianhua Xue , John David Westwood , Mark Anthony Gubbins , Alexandru Cazacy
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.
摘要翻译： 提供了具有可能减少擦除通量并增加写入能力的障碍的数据存储系统。 数据存储系统包括写入元件。 写入元件具有带闪光区域的写入极。 磁通势垒位于写磁极耀斑区域。 磁通势垒示意性地由具有易磁化平面的面内磁各向异性材料制成。 在另一个实施例中，数据存储系统包括具有空气轴承表面和在空气支承表面处的屏蔽的书写元件。 屏蔽具有大约零的磁导率。 屏蔽件示例性地包括正和负磁导率的交替层。 屏蔽件可选地包括可以包括顶部，底部和侧部屏蔽件的多个屏蔽件。
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公开(公告)号：US20120063032A1
公开(公告)日：2012-03-15
申请号：US12879791
申请日：2010-09-10
申请人： Eric Meloche , Bin Lu , Lixin Jia , Jianhua Xue , John David Westwood , Mark Anthony Gubbins , Alexandru Cazacu
发明人： Eric Meloche , Bin Lu , Lixin Jia , Jianhua Xue , John David Westwood , Mark Anthony Gubbins , Alexandru Cazacu
IPC分类号： G11B5/127
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.
摘要翻译： 提供了具有可能减少擦除通量并增加写入能力的障碍的数据存储系统。 数据存储系统包括写入元件。 写入元件具有带闪光区域的写入极。 磁通势垒位于写磁极耀斑区域。 磁通势垒示意性地由具有易磁化平面的面内磁各向异性材料制成。 在另一个实施例中，数据存储系统包括具有空气轴承表面和在空气支承表面处的屏蔽的书写元件。 屏蔽具有大约零的磁导率。 屏蔽件示例性地包括正和负磁导率的交替层。 屏蔽件可选地包括可以包括顶部，底部和侧部屏蔽件的多个屏蔽件。
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公开(公告)号：US09842612B2
公开(公告)日：2017-12-12
申请号：US12571959
申请日：2009-10-01
申请人： Mark Anthony Gubbins , Robert William Lamberton , Robert Edward Weinstein , James Joseph Touchton
发明人： Mark Anthony Gubbins , Robert William Lamberton , Robert Edward Weinstein , James Joseph Touchton
CPC分类号： G11B5/02 , B82Y10/00 , G11B5/3133 , G11B5/746 , G11B5/82 , G11B20/10009 , G11B20/10222 , G11B20/1024 , G11B20/10388 , G11B20/10425 , G11B2005/0005 , G11B2220/252
摘要： The presently disclosed technology teaches integrating disc drive electronics into a transducer head. Decreased electrical transit times and data processing times can be achieved by placing the electronics on or within the transducer head because electrical connections may be made physically shorter than in conventional systems. The electronics may include one or more of a control system circuit, a write driver, and/or a data buffer. The control system circuit generates a modified clock signal that has a fixed relation to phase and frequency of a bit-detected reference signal that corresponds to positions of patterned bits on the disc. The write driver writes outgoing data bits received from an external connection to off-head electronics directly to the writer synchronized with the modified clock signal. The data buffer stores and converts digital data bits sent from the off-head electronics to an analog signal that is synchronized with the modified clock signal.
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公开(公告)号：US07969772B2
公开(公告)日：2011-06-28
申请号：US12272919
申请日：2008-11-18
IPC分类号： G11C11/50
摘要： A method and apparatus for managing data, particularly in regard to non-volatile memory cells. In some embodiments, at least two actuating conductors are at least partially surrounded by a main ferromagnetic core and an adjacent hard magnet. When current is conducted through the actuating conductors, a flexible beam is induced to traverse a first air gap that defines a high resistance position and a low resistance position.
摘要翻译： 一种用于管理数据的方法和装置，特别是关于非易失性存储单元。 在一些实施例中，至少两个致动导体至少部分地被主铁磁芯和相邻的硬磁体包围。 当电流通过致动导体传导时，柔性梁被诱导穿过限定高电阻位置和低电阻位置的第一气隙。
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公开(公告)号：US20100123534A1
公开(公告)日：2010-05-20
申请号：US12272919
申请日：2008-11-18
摘要： A method and apparatus for managing data, particularly in regard to non-volatile memory cells. In some embodiments, at least two actuating conductors are at least partially surrounded by a main ferromagnetic core and an adjacent hard magnet. When current is conducted through the actuating conductors, a flexible beam is induced to traverse a first air gap that defines a high resistance position and a low resistance position.
摘要翻译： 一种用于管理数据的方法和装置，特别是关于非易失性存储单元。 在一些实施例中，至少两个致动导体至少部分地被主铁磁芯和相邻的硬磁体包围。 当电流通过致动导体传导时，柔性梁被诱导穿过限定高电阻位置和低电阻位置的第一气隙。
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6.发明授权公开(公告)号：US08501536B2
公开(公告)日：2013-08-06
申请号：US12751452
申请日：2010-03-31
CPC分类号： H01S5/02256 , G11B5/105 , G11B5/3173 , G11B2005/0021 , H01S5/0201 , H01S5/183
摘要： A method of producing a slider wafer populated with electromagnetic components optically aligned with photonic elements for HAMR applications. Laser chips are transferred from a laser substrate wafer to the slider wafer by a massively parallel printing transfer process. After wafer bonding the laser chips to the slider wafer, the shape and optical alignment of the photonic elements are precisely aligned en masse by lithographic processing.
摘要翻译： 一种制造滑动晶片的方法，其具有与用于HAMR应用的光子元件光学对准的电磁部件。 激光芯片通过大规模平行印刷转印工艺从激光基板晶片转移到滑块晶片。 在将激光芯片晶片接合到滑块晶片之后，光子元件的形状和光学取向通过光刻处理精确对准。
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公开(公告)号：US08456969B1
公开(公告)日：2013-06-04
申请号：US13431163
申请日：2012-03-27
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A magnetic stack includes a self-supporting substrate that carries first and second layer(s). The first layer(s) comprise a magnetic write pole, and the second layer(s) comprise a semiconductor laser. At least one of the second layer(s) is monocrystalline and incompatible with epitaxial growth on the substrate. No support substrate other than the self-supporting substrate attaches to the second layer(s). The magnetic stack may include a near field transducer (NFT) disposed to receive light emitted by the laser. A waveguide may transmit light from the laser to the NFT, or the NFT may couple to the laser without an intervening waveguide. The magnetic stack may be configured for heat assisted magnetic recording (HAMR).
摘要翻译： 磁性堆叠包括承载第一层和第二层的自支撑衬底。 第一层包括磁性写入磁极，第二层包括半导体激光器。 第二层中的至少一层是单晶的，并且与衬底上的外延生长不相容。 除了自支撑衬底之外，不具有支撑衬底附接到第二层。 磁性堆叠可以包括设置为接收由激光器发射的光的近场传感器（NFT）。 波导可以将来自激光器的光透射到NFT，或者NFT可以在没有中间波导的情况下耦合到激光器。 磁性堆叠可以被配置用于热辅助磁记录（HAMR）。
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公开(公告)号：US08400891B2
公开(公告)日：2013-03-19
申请号：US12492580
申请日：2009-06-26
申请人： Mark Anthony Gubbins
发明人： Mark Anthony Gubbins
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , B82Y10/00 , G11B5/09 , G11B5/3133 , G11B5/3967 , G11B5/743 , G11B2220/2516
摘要： An apparatus includes a read/write head disposed on a slider, a control circuit disposed on the slider, and an adjustable delay line disposed on the slider. The adjustable delay line delays transmission of aligned write data to the read/write head by an adjustable delay. The adjustable delay is controlled by the control circuit a function of read synchronization data provided by the read/write head.
摘要翻译： 一种装置包括设置在滑块上的读/写头，设置在滑块上的控制电路和设置在滑块上的可调延迟线。 可调延迟线延迟对准的写入数据到读/写头的传输延迟可调。 可调延迟由控制电路控制由读/写头提供的读同步数据的功能。
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公开(公告)号：US08194508B2
公开(公告)日：2012-06-05
申请号：US12613391
申请日：2009-11-05
IPC分类号： G11B11/00
CPC分类号： G11B5/59616 , B82Y10/00 , G11B5/09 , G11B5/743 , G11B2005/001
摘要： The presently disclosed technology teaches a transducer head with a read sensor, a write pole, and one or more waveform sensors attached to the transducer head. Further, a waveform propagates in the direction of a BPM and the waveform sensor is configured to detect the waveform after it is reflected from the BPM. Additionally, a spin-polarized current is influenced by the BPM and a spin angular momentum sensor detects changes in spin angular momentum of the current. Further, a processor relates at least one property of the reflected waveform and/or current with positions of patterned bits on the BPM. The processor may then modify a timing signal and/or transducer head position to ensure that data bits are accurately written to the BPM. The end result is the ability to more quickly and accurately detect the patterned bits and synchronize a position of the transducer head with the patterned bits.
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公开(公告)号：US20110102930A1
公开(公告)日：2011-05-05
申请号：US12613391
申请日：2009-11-05
IPC分类号： G11B5/02
CPC分类号： G11B5/59616 , B82Y10/00 , G11B5/09 , G11B5/743 , G11B2005/001
摘要： The presently disclosed technology teaches a transducer head with a read sensor, a write pole, and one or more waveform sensors attached to the transducer head. Further, a waveform propagates in the direction of a BPM and the waveform sensor is configured to detect the waveform after it is reflected from the BPM. Additionally, a spin-polarized current is influenced by the BPM and a spin angular momentum sensor detects changes in spin angular momentum of the current. Further, a processor relates at least one property of the reflected waveform and/or current with positions of patterned bits on the BPM. The processor may then modify a timing signal and/or transducer head position to ensure that data bits are accurately written to the BPM. The end result is the ability to more quickly and accurately detect the patterned bits and synchronize a position of the transducer head with the patterned bits.
摘要翻译： 目前公开的技术教导了具有读取传感器，写入极和连接到换能器头的一个或多个波形传感器的换能器头。 此外，波形沿BPM的方向传播，并且波形传感器被配置为在从BPM反射之后检测波形。 此外，自旋极化电流受BPM影响，自旋角动量传感器检测电流的自旋角动量的变化。 此外，处理器将反射波形和/或电流的至少一个性质与BPM上的图案化位的位置相关联。 然后，处理器可以修改定时信号和/或换能器头位置，以确保将数据位准确地写入BPM。 最终的结果是能够更快速和准确地检测图案化的位并使换能器头部与图案化位的同步。
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