Optimized ridge apertures for thermally assisted magnetic recording
    41.
    发明申请
    Optimized ridge apertures for thermally assisted magnetic recording 失效
    用于热辅助磁记录的优化脊孔

    公开(公告)号:US20080151360A1

    公开(公告)日:2008-06-26

    申请号:US11645459

    申请日:2006-12-26

    IPC分类号: G02B5/00

    摘要: Methods and devices for optimized ridge near field apertures for thermally assisted magnetic recording are disclosed. The aperture dimensions and supporting dielectric materials are optimized for maximum energy absorption at the magnetic recording layer for a light source having a wavelength of 780 nm, which can be produced by low cost laser diodes.

    摘要翻译: 公开了用于热辅助磁记录的用于优化的脊近场孔的方法和装置。 针对波长为780nm的光源的磁记录层的最大能量吸收进行了优化,孔径尺寸和支撑电介质材料可由低成本的激光二极管产生。

    Ultra low-cost solid-state memory
    42.
    发明授权
    Ultra low-cost solid-state memory 有权
    超低成本固态存储器

    公开(公告)号:US07291878B2

    公开(公告)日:2007-11-06

    申请号:US10751740

    申请日:2004-01-05

    IPC分类号: H01L27/108

    摘要: A three-dimensional solid-state memory is formed from a plurality of bit lines, a plurality of layers, a plurality of tree structures and a plurality of plate lines. Bit lines extend in a first direction in a first plane. Each layer includes an array of memory cells, such as ferroelectric or hysteretic-resistor memory cells. Each tree structure corresponds to a bit line, has a trunk portion and at least one branch portion. The trunk portion of each tree structure extends from a corresponding bit line, and each tree structure corresponds to a plurality of layers. Each branch portion corresponds to at least one layer and extends from the trunk portion of a tree structure. Plate lines correspond to at least one layer and overlap the branch portion of each tree structure in at least one row of tree structures at a plurality of intersection regions.

    摘要翻译: 三维固态存储器由多个位线,多个层,多个树结构和多个板条形成。 位线在第一平面中沿第一方向延伸。 每层包括存储单元阵列,例如铁电或迟滞电阻存储单元。 每个树结构对应于位线,具有中继部分和至少一个分支部分。 每个树结构的中继部分从对应的位线延伸,并且每个树结构对应于多个层。 每个分支部分对应于至少一个层并且从树结构的主干部分延伸。 板条对应于至少一层,并且在多个交叉区域的至少一行树结构中与每个树结构的分支部分重叠。

    Near field transducer having main body and wings extending therefrom and only electrically coupled thereby
    43.
    发明授权
    Near field transducer having main body and wings extending therefrom and only electrically coupled thereby 有权
    近场换能器具有主体和从其延伸的翼,并仅由此电耦合

    公开(公告)号:US08472286B2

    公开(公告)日:2013-06-25

    申请号:US12347134

    申请日:2008-12-31

    IPC分类号: G11B11/00

    摘要: According to one embodiment, an apparatus includes a near field transducer comprising a conductive metal film having a main body, a ridge extending from the main body, and wings extending from the main body in a same direction as the ridge, wherein the wings are only electrically coupled by the main body. In another embodiment, an apparatus includes a near field transducer comprising a conductive metal film having a main body, a ridge extending from the main body, and wings extending from the main body in a same direction as the ridge. Also the apparatus includes a layer of magnetic material positioned beyond the wings relative to the main body, wherein a length of the layer of magnetic material adjacent the near field transducer is at least about coextensive with a length of the main body in a same direction.

    摘要翻译: 根据一个实施例,一种装置包括近场换能器,其包括具有主体的导电金属膜,从主体延伸的脊,以及沿着与脊相同的方向从主体延伸的翼,其中仅仅是翼 由主体电耦合。 在另一个实施例中,一种装置包括近场换能器,其包括具有主体的导电金属膜,从主体延伸的脊,以及沿着与脊相同的方向从主体延伸的翼。 该装置还包括相对于主体定位在机翼之外的磁性材料层,其中邻近近场换能器的磁性材料层的长度至少与主体在相同方向上的长度大致相同。

    Thermally-assisted recording (TAR) patterned-media disk drive with optical detection of write synchronization and servo fields
    44.
    发明授权
    Thermally-assisted recording (TAR) patterned-media disk drive with optical detection of write synchronization and servo fields 有权
    热辅助记录(TAR)图案媒体磁盘驱动器,具有写入同步和伺服字段的光学检测

    公开(公告)号:US08355300B2

    公开(公告)日:2013-01-15

    申请号:US12898381

    申请日:2010-10-05

    IPC分类号: G11B11/00

    摘要: A thermally-assisted recording (TAR) bit-patterned-media (BPM) magnetic recording disk drive uses optical detection of synchronization fields for write synchronization and optical detection of servo sectors for read/write head positioning. The synchronization fields and servo sectors extend generally radially across the data tracks and are patterned into discrete nondata blocks separated by gaps in the along-the-track direction. A near-field transducer (NFT) directs laser radiation to the disk and generates a power absorption profile on the disk that has a characteristic along-the-track spot size less than the along-the-track length of the gaps between the nondata blocks in the synchronization fields and servo sectors. A sensor provides an output signal in response to radiation from the nondata blocks and gaps in the synchronization fields and servo sectors as the disk rotates to control the timing of the magnetic write field applied to the data islands and to control the positioning of the read/write head on the data tracks.

    摘要翻译: 热辅助记录(TAR)位图案介质(BPM)磁记录磁盘驱动器使用同步磁场的光学检测来进行读/写头定位的伺服扇区的写入同步和光学检测。 同步场和伺服扇区通常径向延伸穿过数据轨道,并且被图案化成沿轨道方向上的间隙分开的离散非平面块。 近场传感器(NFT)将激光辐射引导到盘上并在盘上产生功率吸收曲线,其具有小于轨道光斑尺寸的特征,该尺寸小于非数据块之间的间隙的沿着轨道长度 在同步领域和伺服领域。 传感器响应于来自非数据块的辐射和同步场和伺服扇区中的间隙而提供输出信号,因为盘旋转以控制施加到数据岛的磁写入场的定时,并且控制读/ 在数据轨上写头。

    Thermally assisted recording head with near field transducer having integral heatsink
    45.
    发明授权
    Thermally assisted recording head with near field transducer having integral heatsink 有权
    具有集成散热片的近场传感器的热辅助记录头

    公开(公告)号:US08339739B2

    公开(公告)日:2012-12-25

    申请号:US12807296

    申请日:2010-08-31

    IPC分类号: G11B5/187

    摘要: A write head structure for use with thermally assisted recording is disclosed. Improved heat sinking is provided for removing thermal energy created by a ridge aperture near field light transducer. Metal films conduct heat away from the region near the ridge aperture to the high pressure air film at the ABS between the head and media. This heat is further dissipated by the media. The metal films have varying thickness to improve lateral conductivity and may be composed of Au combined with a harder metal such as Ru to improve wear characteristics at the ABS.

    摘要翻译: 公开了一种用于热辅助记录的写头结构。 提供改进的散热用于去除由场光传感器附近的脊孔产生的热能。 金属膜将热量从脊孔附近的区域传导到头部和介质之间的ABS处的高压空气膜。 这种热量被介质进一步消散。 金属膜具有不同的厚度以改善横向导电性,并且可以由Au与诸如Ru的较硬金属组合以提高ABS的磨损特性。

    Optimized ridge apertures for thermally assisted magnetic recording
    46.
    发明授权
    Optimized ridge apertures for thermally assisted magnetic recording 失效
    用于热辅助磁记录的优化脊孔

    公开(公告)号:US08243557B2

    公开(公告)日:2012-08-14

    申请号:US11645459

    申请日:2006-12-26

    IPC分类号: G02B5/00

    摘要: Methods and devices for optimized ridge near field apertures for thermally assisted magnetic recording are disclosed. The aperture dimensions and supporting dielectric materials are optimized for maximum energy absorption at the magnetic recording layer for a light source having a wavelength of 780 nm, which can be produced by low cost laser diodes.

    摘要翻译: 公开了用于热辅助磁记录的用于优化的脊近场孔的方法和装置。 针对波长为780nm的光源的磁记录层的最大能量吸收进行了优化,孔径尺寸和支撑电介质材料可由低成本的激光二极管产生。

    HEAD STRUCTURE FOR THERMALLY-ASSISTED RECORDING (TAR) DISK DRIVE
    47.
    发明申请
    HEAD STRUCTURE FOR THERMALLY-ASSISTED RECORDING (TAR) DISK DRIVE 有权
    用于热辅助记录(TAR)磁盘驱动器的头结构

    公开(公告)号:US20120113770A1

    公开(公告)日:2012-05-10

    申请号:US12942010

    申请日:2010-11-08

    IPC分类号: G11B11/00

    摘要: A thermally-assisted recording (TAR) head structure has a semiconductor substrate as the head carrier with a vertical-cavity surface-emitting laser (VCSEL) on its front surface, a TAR head formed directly on the VCSEL, and a highly reflecting third mirror on its back surface. The semiconductor substrate serves as an extended cavity for the VCSEL. The TAR head is fabricated on the outer surface of the VCSEL in the same manner as proposed for fabrication of a TAR head on a conventional slider. The TAR head includes a conventional read head and write head, and an optical waveguide with a grating coupler and a near-field transducer (NFT). The laser radiation is output through a partially reflecting output mirror of the VCSEL through the front surface to the grating coupler, which turns the incoming laser radiation 90 degrees and directs it into the waveguide from where it is directed to the NFT.

    摘要翻译: 热辅助记录(TAR)头结构具有半导体衬底作为其前表面具有垂直腔表面发射激光器(VCSEL)的头部载体,直接形成在VCSEL上的TAR头和高反射第三反射镜 在其背面。 半导体衬底用作VCSEL的扩展腔。 TAR头以与在常规滑块上制造TAR头所提出的相同的方式制造在VCSEL的外表面上。 TAR头包括常规读头和写头,以及具有光栅耦合器和近场换能器(NFT)的光波导。 激光辐射通过VCSEL的部分反射的输出反射镜通过前表面输出到光栅耦合器,光栅耦合器使入射的激光辐射90度转动并将其引导到从其被引导到NFT的波导中。

    THERMALLY-ASSISTED RECORDING (TAR) PATTERNED-MEDIA DISK DRIVE WITH OPTICAL DETECTION OF WRITE SYNCHRONIZATION AND SERVO FIELDS
    48.
    发明申请
    THERMALLY-ASSISTED RECORDING (TAR) PATTERNED-MEDIA DISK DRIVE WITH OPTICAL DETECTION OF WRITE SYNCHRONIZATION AND SERVO FIELDS 有权
    热辅助记录(TAR)图形媒体磁盘驱动器,具有写入同步和伺服字段的光学检测

    公开(公告)号:US20120082015A1

    公开(公告)日:2012-04-05

    申请号:US12898381

    申请日:2010-10-05

    IPC分类号: G11B11/00

    摘要: A thermally-assisted recording (TAR) bit-patterned-media (BPM) magnetic recording disk drive uses optical detection of synchronization fields for write synchronization and optical detection of servo sectors for read/write head positioning. The synchronization fields and servo sectors extend generally radially across the data tracks and are patterned into discrete nondata blocks separated by gaps in the along-the-track direction. A near-field transducer (NFT) directs laser radiation to the disk and generates a power absorption profile on the disk that has a characteristic along-the-track spot size less than the along-the-track length of the gaps between the nondata blocks in the synchronization fields and servo sectors. A sensor provides an output signal in response to radiation from the nondata blocks and gaps in the synchronization fields and servo sectors as the disk rotates to control the timing of the magnetic write field applied to the data islands and to control the positioning of the read/write head on the data tracks.

    摘要翻译: 热辅助记录(TAR)位图案介质(BPM)磁记录磁盘驱动器使用同步磁场的光学检测来进行读/写头定位的伺服扇区的写入同步和光学检测。 同步场和伺服扇区通常径向延伸穿过数据轨道,并且被图案化成沿轨道方向上的间隙分开的离散非平面块。 近场传感器(NFT)将激光辐射引导到盘上并在盘上产生功率吸收曲线,其具有小于轨道光斑尺寸的特征,该尺寸小于非数据块之间的间隙的沿着轨道长度 在同步领域和伺服领域。 传感器响应于来自非数据块的辐射和同步场和伺服扇区中的间隙而提供输出信号,因为盘旋转以控制施加到数据岛的磁写入场的定时,并且控制读/ 在数据轨上写头。

    ALL-OPTICAL MAGNETIC RECORDING SYSTEM USING CIRCULARLY POLARIZED LIGHT AND BIT-PATTERNED MEDIA
    50.
    发明申请
    ALL-OPTICAL MAGNETIC RECORDING SYSTEM USING CIRCULARLY POLARIZED LIGHT AND BIT-PATTERNED MEDIA 有权
    全光磁记录系统采用圆极化的光和点阵图形

    公开(公告)号:US20110199867A1

    公开(公告)日:2011-08-18

    申请号:US12707402

    申请日:2010-02-17

    IPC分类号: G11B11/00

    摘要: A perpendicular magnetic recording system uses bit-patterned media (BPM) and circularly polarized light to switch the magnetization of the discrete magnetic bits by the inverse Faraday effect. Circularly polarized light generates an external rotating electric field in a plane orthogonal to the light propagation direction, which induces a magnetic field parallel to the light propagation direction in a magnetic material exposed to the electric field. The BPM is a generally planar substrate with discrete spaced-apart metal or metal alloy magnetic islands that are magnetizable in a perpendicular direction and are separated by nonmagnetic spaces of non-metallic material on the substrate. A near-field metal transducer is patterned into at least three tips, with the tips surrounding and defining a transducer active region. The circularly polarized light is incident on the tips, which produce a strong in-plane rotating electric field. A magnetic island exposed to the rotating electric field will experience an induced perpendicular magnetic field that switches the magnetization of the magnetic island.

    摘要翻译: 垂直磁记录系统使用位图案介质(BPM)和圆偏振光来通过反法拉第效应切换离散磁头的磁化。 圆偏振光在与光传播方向正交的平面中产生外部旋转电场,在暴露于电场的磁性材料中产生与光传播方向平行的磁场。 BPM是具有离散间隔开的金属或金属合金磁岛的大致平面的基板,其可以在垂直方向上磁化并且由基板上的非金属材料的非磁性空间分开。 将近场金属换能器图案化成至少三个尖端,其中尖端围绕并限定换能器有效区域。 圆偏振光入射到尖端,产生强烈的平面内旋转电场。 暴露于旋转电场的磁岛将经历感应的垂直磁场,其切换磁岛的磁化。