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45 条记录 (耗时 0.041 秒)

    Magnetic layering for bit-patterned stack
    22.
    发明授权
    Magnetic layering for bit-patterned stack 有权
    位图案堆叠的磁层

    公开(公告)号：US09311948B2

    公开(公告)日：2016-04-12

    申请号：US12347141

    申请日：2008-12-31

    申请人： Erol Girt ,  Dieter K. Weller ,  Alexander Y. Dobin ,  Bogdan F. Valcu ,  Thomas F. Ambrose ,  Yingguo Peng ,  Yukiko A. Kubota ,  Abebe Hailu

    发明人： Erol Girt ,  Dieter K. Weller ,  Alexander Y. Dobin ,  Bogdan F. Valcu ,  Thomas F. Ambrose ,  Yingguo Peng ,  Yukiko A. Kubota ,  Abebe Hailu

    IPC分类号： G11B5/66 ,  G11B5/82 ,  B82Y10/00 ,  G11B5/74

    CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/743

    摘要： A perpendicular magnetic recording layer of a magnetic recording medium includes a plurality of bit-patterned magnetic islands, wherein each of the plurality of islands overlay a soft magnetic under-layer. Each of the magnetic islands includes a first magnetic sub-layer adjacent a second magnetic sub-layer, wherein the first sub-layer has a relatively high magnetic anisotropy that is greater than a magnetic anisotropy of the second sub-layer. The magnetic recording layer further includes a third sub-layer, which extends to connect each of the plurality of islands. The third sub-layer may have a magnetic anisotropy that is less than that of the second sub-layer of each of the magnetic islands and/or may serve as an interlayer, extending between the first sub-layer and the soft magnetic under-layer of the recording medium, and having a structure to help to produce the greater anisotropy first magnetic sub-layer.

    摘要翻译： 磁记录介质的垂直磁记录层包括多个位图形磁岛，其中多个岛中的每一个覆盖软磁底层。 每个磁岛包括与第二磁性子层相邻的第一磁性子层，其中第一子层具有大于第二子层的磁各向异性的相对高的磁各向异性。 磁记录层还包括延伸以连接多个岛中的每一个的第三子层。 第三子层可以具有小于每个磁岛的第二子层的磁各向异性和/或可以用作在第一子层和软磁性底层之间延伸的中间层 并且具有有助于产生更大的各向异性的第一磁性子层的结构。

    CoPtCr-based bit patterned magnetic media
    23.
    发明授权
    CoPtCr-based bit patterned magnetic media 有权
    基于CoPtCr的位图形磁介质

    公开(公告)号：US08673466B2

    公开(公告)日：2014-03-18

    申请号：US11525958

    申请日：2006-09-25

    申请人： Dieter K. Weller ,  Hans J. Richter ,  Samuel D. Harkness, IV ,  Erol Girt

    发明人： Dieter K. Weller ,  Hans J. Richter ,  Samuel D. Harkness, IV ,  Erol Girt

    IPC分类号： G11B5/66

    CPC分类号： G11B5/656 ,  G11B5/667 ,  G11B5/732 ,  G11B5/855

    摘要： A bit patterned magnetic recording medium comprises a substrate having a surface, and a plurality of spaced apart magnetic elements on the surface, each element constituting a discrete magnetic domain or bit of the same structure and comprised of a stack of thin film layers including in order from the substrate surface: a seed layer; and a perpendicular magnetic recording layer in contact with a surface of the seed layer and comprising a Co 1-x-yPtxCry alloy material, where 0.05≦x≦0.35 and 0≦y≦0.15. The Co1-x-yPtxCry alloy material has a first order magnetic anisotropy constant K1 up to about 2×107 erg/cm3, a saturation magnetization Ms up to about 1200 emu/cm3, an anisotropy field HK=2K1/Ms up to about 35 kOe, a hexagonal (0001) crystal structure with c-axis perpendicular to a surface thereof, and an X-Ray diffraction (XRD) rocking curve with a full width at half maximum (FWHM) of ˜5° or less.

    摘要翻译： 位图形磁记录介质包括具有表面的基板和表面上的多个间隔开的磁性元件，每个元件构成相同结构的离散磁畴或位，并且包括一层薄层， 从基底表面：种子层; 以及与种子层的表面接触并包括Co 1-x-yPt x Cry合金材料的垂直磁记录层，其中0.05≤x≤0.35和0≤y≤0.15。 Co1-x-yPtxCry合金材料具有高达约2×107erg / cm3的一阶磁各向异性常数K1，高达约1200emu / cm3的饱和磁化强度Ms，高达约35的各向异性磁场HK = 2K1 / Ms kOe，具有垂直于其表面的c轴的六边形（0001）晶体结构，以及具有约5°或更小的全半宽度（FWHM）的X射线衍射（XRD）摇摆曲线。

    METHOD FOR IMPROVING A PATTERNED PERPENDICULAR MAGNETIC RECORDING DISK WITH ANNEALING
    28.
    发明申请
    METHOD FOR IMPROVING A PATTERNED PERPENDICULAR MAGNETIC RECORDING DISK WITH ANNEALING 有权
    用于改进带有退火的图形磁性记录磁盘的方法

    公开(公告)号：US20130270221A1

    公开(公告)日：2013-10-17

    申请号：US13449279

    申请日：2012-04-17

    申请人： Michael Konrad Grobis ,  Olav Hellwig ,  Ernesto E. Marinero ,  Andrew Thomas McCallum ,  Dieter K. Weller

    发明人： Michael Konrad Grobis ,  Olav Hellwig ,  Ernesto E. Marinero ,  Andrew Thomas McCallum ,  Dieter K. Weller

    IPC分类号： B05D3/10 ,  C21D9/00

    CPC分类号： G11B5/855 ,  C22C1/02 ,  C22C19/07

    摘要： A method for making a bit-patterned-media magnetic recording disk with discrete magnetic islands includes annealing the data islands after they have been formed by an etching process. A hard mask, such as a layer of silicon nitride or carbon, may be first formed on the recording layer and a patterned resist formed on the hard mask. The resist pattern is then transferred into the hard mask, which is used as the etch mask to etch the recording layer and form the discrete data islands. After the data islands are formed by the etching process, the patterned recording layer is annealed. The annealing may be done in a vacuum, or in an inert gas, like helium or argon, or in a forming gas such as a reducing atmosphere of argon plus hydrogen. The annealing improves the coercivity, the effective saturation magnetization and the thermal stability of the patterned media.

    摘要翻译： 用于制造具有离散磁岛的位图形介质磁记录盘的方法包括在通过蚀刻工艺形成数据岛之后退火数据岛。 可以首先在记录层上形成诸如氮化硅或碳的一层的硬掩模和形成在硬掩模上的图案化抗蚀剂。 然后将抗蚀剂图案转移到硬掩模中，其用作蚀刻掩模以蚀刻记录层并形成离散数据岛。 在通过蚀刻工艺形成数据岛之后，对图案化记录层进行退火。 退火可以在真空中或在诸如氦或氩的惰性气体中进行，或者在形成气体如氩气和氢气的还原气氛中进行。 退火提高了图案化介质的矫顽力，有效饱和磁化强度和热稳定性。

    Silicon/gold seed structure for crystalline alignment in a film stack
    29.
    发明授权
    Silicon/gold seed structure for crystalline alignment in a film stack 有权
    硅/金种子结构，用于膜叠层中的晶体取向

    公开(公告)号：US08492010B2

    公开(公告)日：2013-07-23

    申请号：US12772179

    申请日：2010-05-01

    申请人： Olav Hellwig ,  Dieter K. Weller

    发明人： Olav Hellwig ,  Dieter K. Weller

    IPC分类号： G11B5/66

    CPC分类号： G11B5/732 ,  G11B5/66 ,  G11B5/667 ,  G11B5/7325 ,  G11B5/855 ,  Y10T428/12076 ,  Y10T428/12465 ,  Y10T428/12472 ,  Y10T428/12674

    摘要： A silicon/gold (Si/Au) bilayer seed structure is located in a film stack between an amorphous or crystalline lower layer and an upper layer with a well-defined crystalline structure. The seed structure includes a Si layer on the generally flat surface of the lower layer and a Au layer on the Si layer. The Si/Au interface initiates the growth of the Au layer with a face-centered-cubic (fcc) crystalline structure with the (111) plane oriented in-plane. The upper layer grown on the Au layer has a fcc or hexagonal-close-packed (hcp) crystalline structure. If the upper layer is a fcc material its [111] direction is oriented substantially perpendicular to the (111) plane of the Au layer and if the upper layer is a hcp material, its c-axis is oriented substantially perpendicular to the (111) plane of the Au layer.

    摘要翻译： 硅/金（Si / Au）双层种子结构位于非晶或结晶下层与具有明确定义的结晶结构的上层之间的膜叠层中。 种子结构包括在下层的大致平坦表面上的Si层和Si层上的Au层。 Si / Au界面以（111）面定向在平面内的面心立方（fcc）晶体结构引发Au层的生长。 在Au层上生长的上层具有fcc或六方密堆积（hcp）晶体结构。 如果上层是fcc材料，其[111]方向定向成基本上垂直于Au层的（111）面，并且如果上层是hcp材料，则其c轴基本垂直于（111）面定向， Au层的平面。

    FePt-C BASED MAGNETIC RECORDING MEDIA WITH ONION-LIKE CARBON PROTECTION LAYER
    30.
    发明申请
    FePt-C BASED MAGNETIC RECORDING MEDIA WITH ONION-LIKE CARBON PROTECTION LAYER 审中-公开
    基于FePt-C的磁性记录介质，具有类似保护层的保护层

    公开(公告)号：US20130114165A1

    公开(公告)日：2013-05-09

    申请号：US13290940

    申请日：2011-11-07

    申请人： Oleksandr Mosendz ,  Simone Pisana ,  Franck D. R. dit Rose ,  Dieter K. Weller

    发明人： Oleksandr Mosendz ,  Simone Pisana ,  Franck D. R. dit Rose ,  Dieter K. Weller

    IPC分类号： G11B5/48 ,  G11B5/64

    CPC分类号： G11B5/72 ,  G11B5/65 ,  G11B5/712

    摘要： A magnetic media for magnetic data recording having a plurality of magnetic grains protected by thin layers of graphitic carbon. The layers of graphitic carbon are formed in a manner similar to onion skins on an onion and can be constructed as single monatomic layers of carbon. The thin layers of graphitic carbon can be formed as layers of graphene or as fullerenes that either cover or partially encapsulate the magnetic gains. The layers of graphitic carbon provide excellent protection against corrosion and wear and greatly reduce magnetic spacing for improved magnetic performance.

    摘要翻译： 一种用于磁数据记录的磁介质，具有被薄层石墨碳保护的多个磁性颗粒。 石墨碳层以与洋葱上的洋葱皮相似的方式形成，并且可以被构造为单个单原子层的碳。 石墨碳的薄层可以形成为石墨烯层或作为覆盖或部分地包封磁增益的富勒烯。 石墨碳层提供优异的防腐蚀和耐磨性保护，并大大减少磁间隔，以改善磁性能。