公开(公告)号：US20120250178A1

公开(公告)日：2012-10-04

申请号：US13077797

申请日：2011-03-31

申请人： Toshiki Hirano ,  Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry C. Stipe

发明人： Toshiki Hirano ,  Fu-Ying Huang ,  Jia-Yang Juang ,  Hal J. Rosen ,  Barry C. Stipe

IPC分类号： G11B5/02 ,  G11B5/673 ,  G11B5/66

CPC分类号： G11B5/66 ,  G11B5/7325 ,  G11B5/82

摘要： A magnetic media for heat assisted magnetic data recording. The magnetic media includes a thermal insulation layer structure formed near the substrate of the media provide more efficient heating of the write layer by allowing less heat dissipation to the substrate. The thermal insulation layer structure can be one or more layers of an oxide such as SiO2 and one or more layers of a material such as NiTa. Increasing the number of oxide layers and NiTa layers increases the thermal insulation of the thermal insulation layer structure thereby further increasing the efficiency of the heat assisted writing.

摘要翻译： 用于热辅助磁数据记录的磁介质。 磁介质包括在介质的衬底附近形成的绝热层结构，通过允许对衬底的较少散热来提供写入层的更有效的加热。 绝热层结构可以是一层或多层氧化物如SiO 2和一层或多层诸如NiTa的材料。 增加氧化物层和NiTa层的数量增加了绝热层结构的热绝缘性，从而进一步提高了热辅助写入的效率。

公开(公告)号：US08842383B1

公开(公告)日：2014-09-23

申请号：US13907157

申请日：2013-05-31

申请人： Hamid Balamane ,  John T. Contreras ,  Samir Garzon ,  Fu-Ying Huang ,  Lidu Huang ,  Barry C. Stipe

发明人： Hamid Balamane ,  John T. Contreras ,  Samir Garzon ,  Fu-Ying Huang ,  Lidu Huang ,  Barry C. Stipe

IPC分类号： G11B27/36

CPC分类号： G11B5/40 ,  G11B5/3106 ,  G11B5/3136 ,  G11B5/314 ,  G11B2005/0021

摘要： Embodiments of the present invention generally relate to a HAMR device having two temperature sensors disposed between a near field transducer (NFT) and a return pole. The two temperature sensors are aligned in a cross-track direction.

摘要翻译： 本发明的实施例一般涉及具有设置在近场换能器（NFT）和返回极之间的两个温度传感器的HAMR装置。 两个温度传感器在交叉轨道方向上对齐。

公开(公告)号：US20090225636A1

公开(公告)日：2009-09-10

申请号：US12075419

申请日：2008-03-10

申请人： Toshiki Hirano ,  Timothy C. Reiley ,  Barry C. Stipe

发明人： Toshiki Hirano ,  Timothy C. Reiley ,  Barry C. Stipe

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B2005/0021

摘要： Components for, and assembly of, a thermally assisted recording device involve a laser mounted to a recording head slider. The output from the laser is directed into an optical waveguide, which delivers the laser light to the media to be written. Several challenges with thermally assisted recording are enabled by the use of a laser carrier, which holds and protects the small, relatively fragile laser and serves as a partial heat sink for the power generated by the laser. The laser, carrier and slider are bonded and can be interconnected as a unit to a suspension constituent to a hard disk drive (HDD) device.

摘要翻译： 热辅助记录装置的组件和组件包括安装在记录头滑块上的激光。 来自激光器的输出被引导到光波导中，该光波导将激光传送到待写入的介质。 通过使用激光载体来实现热辅助记录的几个挑战，该激光载体保持和保护小的相对脆弱的激光器并且用作由激光产生的功率的部分散热器。 激光器，载体和滑块被接合并且可以作为单元互连到悬挂构件到硬盘驱动器（HDD）设备。

公开(公告)号：US07986592B2

公开(公告)日：2011-07-26

申请号：US12075419

申请日：2008-03-10

申请人： Toshiki Hirano ,  Timothy C. Reiley ,  Barry C. Stipe

发明人： Toshiki Hirano ,  Timothy C. Reiley ,  Barry C. Stipe

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B2005/0021

摘要： Components for, and assembly of, a thermally assisted recording device involve a laser mounted to a recording head slider. The output from the laser is directed into an optical waveguide, which delivers the laser light to the media to be written. Several challenges with thermally assisted recording are enabled by the use of a laser carrier, which holds and protects the small, relatively fragile laser and serves as a partial heat sink for the power generated by the laser. The laser, carrier and slider are bonded and can be interconnected as a unit to a suspension constituent to a hard disk drive (HDD) device.

摘要翻译： 热辅助记录装置的组件和组件包括安装在记录头滑块上的激光。 来自激光器的输出被引导到光波导中，该光波导将激光传送到待写入的介质。 通过使用激光载体来实现热辅助记录的几个挑战，该激光载体保持和保护小的相对脆弱的激光器并且用作由激光产生的功率的部分散热器。 激光器，载体和滑块被接合并且可以作为单元互连到悬挂构件到硬盘驱动器（HDD）设备。

公开(公告)号：US08553505B2

公开(公告)日：2013-10-08

申请号：US12954461

申请日：2010-11-24

申请人： Vijay P. S. Rawat ,  Barry C. Stipe

发明人： Vijay P. S. Rawat ,  Barry C. Stipe

IPC分类号： G11B11/00

CPC分类号： G11B13/08 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/314 ,  G11B2005/0021

摘要： A thermally assisted write head having a plasmonic heating device. The plasmonic heating device has a plasmonic antenna located at an air bearing surface of the thermally assisted write head. The plasmonic antenna is constructed of an alloy that is sufficiently hard to withstand the processes such as ion milling and chemical mechanical polishing used to construct the plasmonic antenna. The plasmonic antenna is preferably constructed of AuX, where X is Cu, Ni, Ta, Ti, Zr or Pt having a concentration less than 5 atomic percent.

摘要翻译： 一种具有等离激元加热装置的热辅助写头。 等离子体激元加热装置具有位于热辅助写入头的空气轴承表面处的等离子体激元。 等离子体激元天线由足够难以承受用于构造等离子体激元天线的离子铣削和化学机械抛光等工艺的合金构成。 等离子体激元天线优选由AuX构成，其中X是浓度小于5原子％的Cu，Ni，Ta，Ti，Zr或Pt。

公开(公告)号：US20120300599A1

公开(公告)日：2012-11-29

申请号：US13117300

申请日：2011-05-27

申请人： John Contreras ,  Weldon Hanson ,  Barry C. Stipe ,  Rehan Zakai

发明人： John Contreras ,  Weldon Hanson ,  Barry C. Stipe ,  Rehan Zakai

IPC分类号： G11B11/00

CPC分类号： G11B5/02 ,  G11B20/1024 ,  G11B20/10351 ,  G11B2005/0021 ,  G11B2220/2516

摘要： A method and apparatus for generating a laser signal for driving a laser used in thermal-assisted recording. A channel of a hard drive generates a high-frequency component of the laser signal—e.g., a periodic wave or series of pulses—and synchronizes the phase of the laser signal with a corresponding write data signal which controls the magnetization of data bits within the magnetic disk of the hard drive. The channel may be connected to a read/write integrated circuit via a channel interconnect. The read/write circuit may include a second phase control to compensate for any phase shift and an adder circuit to combine the transmitted high-frequency laser with a DC bias. Further, the read/write circuit may include a feedback loop for adjusting the DC bias based on environmental parameters of the hard drive such as temperature.

摘要翻译： 一种用于产生用于驱动用于热辅助记录的激光的激光信号的方法和装置。 硬盘驱动器的通道产生激光信号的高频分量（例如，周期波或一系列脉冲），并将激光信号的相位与相应的写数据信号同步，该对应写数据信号控制激光信号内的数据位的磁化 硬盘的磁盘。 信道可以经由信道互连连接到读/写集成电路。 读/写电路可以包括用于补偿任何相移的第二相位控制和用于将发送的高频激光器与DC偏压组合的加法器电路。 此外，读/写电路可以包括用于基于诸如温度的硬盘驱动器的环境参数来调整DC偏置的反馈回路。

公开(公告)号：US20120127839A1

公开(公告)日：2012-05-24

申请号：US12954461

申请日：2010-11-24

申请人： Vijay P. S. Rawat ,  Barry C. Stipe

发明人： Vijay P. S. Rawat ,  Barry C. Stipe

IPC分类号： G11B11/00 ,  G11B5/02

CPC分类号： G11B13/08 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/314 ,  G11B2005/0021

摘要： A thermally assisted write head having a plasmonic heating device. The plasmonic heating device has a plasmonic antenna located at an air bearing surface of the thermally assisted write head. The plasmonic antenna is constructed of an alloy that is sufficiently hard to withstand the processes such as ion milling and chemical mechanical polishing used to construct the plasmonic antenna. The plasmonic antenna is preferably constructed of AuX, where X is Cu, Ni, Ta, Ti, Zr or Pt having a concentration less than 5 atomic percent.

摘要翻译： 一种具有等离激元加热装置的热辅助写头。 等离子体激元加热装置具有位于热辅助写入头的空气轴承表面处的等离子体激元。 等离子体激元天线由足够难以承受用于构造等离子体激元天线的离子铣削和化学机械抛光等工艺的合金构成。 等离子体激元天线优选由AuX构成，其中X是浓度小于5原子％的Cu，Ni，Ta，Ti，Zr或Pt。

公开(公告)号：US06771534B2

公开(公告)日：2004-08-03

申请号：US10295678

申请日：2002-11-15

申请人： Barry C. Stipe

发明人： Barry C. Stipe

IPC分类号： G11C1100

CPC分类号： H01F10/3254 ,  B82Y10/00 ,  B82Y25/00 ,  G11C11/15 ,  G11C11/1675 ,  H01F41/305 ,  H01L27/228 ,  H01L43/08

摘要： A method and structure for a non-volatile magnetic random access memory (MRAM) device that has a stable magnetic electrode, an oxide layer adjacent the stable magnetic electrode, and a free magnetic electrode. The oxide layer is between the stable magnetic electrode and the free magnetic electrode. In the invention, a conductor is connected to a stable magnetic electrode. The oxide layer has a resistance at levels to allow sufficient power dissipation to lower the anisotropy of the free magnetic electrode through current induced heating. Current-induced heating is used in combination with spin-transfer torque or a magnetic field to switch the free magnetic electrode.

公开(公告)号：US08553506B2

公开(公告)日：2013-10-08

申请号：US13340147

申请日：2011-12-29

申请人： John Contreras ,  Lidu Huang ,  Erhard Schreck ,  Barry C. Stipe

发明人： John Contreras ,  Lidu Huang ,  Erhard Schreck ,  Barry C. Stipe

IPC分类号： G11B11/00

CPC分类号： G11B5/3133 ,  G11B5/314 ,  G11B5/607 ,  G11B2005/0021

摘要： An apparatus according to one embodiment includes a near-field transducer positioned towards an air bearing surface side of the apparatus; and at least one conductor or circuit for causing heating of the near-field transducer. A method according to one embodiment includes heating the near-field transducer by passing a current through the at least one conductor or circuit; and illuminating the near-field transducer during a write operation, wherein the current does not pass through the at least one conductor or circuit for at least a majority of a time of illumination. Additional embodiments are also presented.

摘要翻译： 根据一个实施例的装置包括朝向装置的空气轴承表面侧定位的近场换能器; 以及用于引起近场换能器加热的至少一个导体或电路。 根据一个实施例的方法包括通过使电流通过至少一个导体或电路来加热近场换能器; 以及在写入操作期间照亮所述近场换能器，其中所述电流在所述照明时间的至少大部分时间内不通过所述至少一个导体或电路。 还提供了另外的实施例。

公开(公告)号：US08570842B1

公开(公告)日：2013-10-29

申请号：US13490318

申请日：2012-06-06

申请人： Hans J. Richter ,  Erhard Schreck ,  Matteo Staffaroni ,  Barry C. Stipe

发明人： Hans J. Richter ,  Erhard Schreck ,  Matteo Staffaroni ,  Barry C. Stipe

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： Instead of using discontinuous step functions or pulses to drive a laser of a TAR enabled disk drive between on and off, a fixed modulation frequency may be used that alternates between a high and low laser power such that the radiation source is always delivering heat to the magnetic media when writing data to the magnetic disk. The magnetic field of the write pole may be synchronized to the modulation frequency of the radiation source to ensure that the radiation source heats the magnetic media proximate to the write pole above the grain freezing temperature when the Zeeman energy produced by the magnetic field of the write pole exceeds the thermal energy of the magnetic media.

摘要翻译： 代替使用不连续的步进功能或脉冲来驱动启用和禁用TAR的磁盘驱动器的激光器，可以使用在高和低激光功率之间交替的固定调制频率，使得辐射源总是向 当磁盘写入数据时，磁性媒体。 写入极的磁场可以与辐射源的调制频率同步，以确保辐射源在写入磁极附近产生的塞曼能量加热写入磁极附近的磁性介质在晶粒冻结温度以上 极超过磁介质的热能。