Method for manufacturing magnetic recording medium
    1.
    发明授权
    Method for manufacturing magnetic recording medium 有权
    磁记录介质的制造方法

    公开(公告)号:US09005699B2

    公开(公告)日:2015-04-14

    申请号:US11862410

    申请日:2007-09-27

    CPC分类号: G11B5/66 G11B5/84

    摘要: A method for manufacturing a magnetic recording medium includes the steps of (a) forming a perpendicular magnetic recording layer and (b) applying an ion beam to regions between tracks of the perpendicular magnetic recording layer so as to form separation regions for magnetically separating the tracks from each other. In the step (a), a continuous film layer composed of a multilayer film is formed, and CoB layers and Pd layers are laminated in the multilayer film. In the step (b), the CoB layers and the Pd layers are melted by the ion beam so as to form an alloy of metals contained in the CoB layers and the Pd layers to thereby form the separation regions.

    摘要翻译: 一种制造磁记录介质的方法包括以下步骤:(a)形成垂直磁记录层,和(b)将离子束施加到垂直磁记录层的轨道之间的区域,以便形成用于磁分离轨道的分离区域 从彼此。 在步骤(a)中,形成由多层膜构成的连续膜层,并且在多层膜中层叠CoB层和Pd层。 在步骤(b)中,CoB层和Pd层通过离子束熔化,以形成CoB层和Pd层中所含的金属的合金,从而形成分离区域。

    Magnetic recording medium having patterned auxiliary recording layer and method for manufacturing such magnetic recording medium
    2.
    发明授权
    Magnetic recording medium having patterned auxiliary recording layer and method for manufacturing such magnetic recording medium 有权
    具有图案化辅助记录层的磁记录介质和用于制造这种磁记录介质的方法

    公开(公告)号:US08367228B2

    公开(公告)日:2013-02-05

    申请号:US12906414

    申请日:2010-10-18

    IPC分类号: G11B5/66

    摘要: A method for manufacturing a magnetic recording medium for perpendicular magnetic recording includes the steps of forming a first magnetic layer which has magnetic crystal grains exhibiting perpendicular magnetic anisotropy and nonmagnetic substances for magnetically separating the magnetic crystal grains from each other at grain boundaries of the magnetic crystal grains, forming a second magnetic layer which has magnetic grains exchange-coupled to the magnetic crystal grains, a grain boundary width of the magnetic grains being smaller than a grain boundary width of the magnetic crystal grains, and forming separation regions which magnetically separate tracks from each other in regions between the tracks of the magnetic recording medium in at least the second magnetic layer. The separation regions are disposed substantially only in the second magnetic layer of the first magnetic layer and the second magnetic layer.

    摘要翻译: 一种用于垂直磁记录的磁记录介质的制造方法包括以下步骤:形成具有垂直磁各向异性的磁性晶粒的第一磁性层和用于在磁性晶体的晶界处将磁性晶粒彼此磁分离的非磁性物质 形成具有磁性晶粒与磁性晶粒交换耦合的第二磁性层,所述磁性晶粒的晶界宽度小于所述磁性晶粒的晶界宽度,以及形成分离区域,其将磁道与 彼此在至少第二磁性层中的磁记录介质的轨道之间的区域中。 分离区域基本上仅设置在第一磁性层和第二磁性层的第二磁性层中。

    Magnetic recording medium and method for manufacturing magnetic recording medium
    3.
    发明授权
    Magnetic recording medium and method for manufacturing magnetic recording medium 有权
    磁记录介质及磁记录介质的制造方法

    公开(公告)号:US07833639B2

    公开(公告)日:2010-11-16

    申请号:US11862789

    申请日:2007-09-27

    IPC分类号: G11B5/66

    摘要: A magnetic recording medium for perpendicular magnetic recording includes a substrate, a granular layer having magnetic crystal grains exhibiting perpendicular magnetic anisotropy and nonmagnetic substances for magnetically separating the magnetic crystal grains from each other at grain boundaries of the magnetic crystal grains, and a continuous film layer having magnetic grains to be exchange-coupled to the magnetic crystal grains, the grain boundary width of the magnetic grains being smaller than that of the magnetic crystal grains, wherein separation regions for magnetically separating tracks from each other are disposed in regions between the tracks of the magnetic recording medium in at least the continuous film layer.

    摘要翻译: 用于垂直磁记录的磁记录介质包括基板,具有垂直磁各向异性的磁性晶粒的颗粒层和用于在磁晶粒的晶界处磁性分离磁晶粒的非磁性物质,以及连续的膜层 具有与磁性晶粒交换耦合的磁性颗粒,磁性颗粒的晶界宽度小于磁性晶粒的晶界宽度,其中将磁道彼此分离磁道的分离区域设置在 所述磁记录介质至少在所述连续膜层中。

    MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD, AND MAGNETIC DISK
    4.
    发明申请
    MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD, AND MAGNETIC DISK 有权
    磁记录介质,磁记录介质制造方法和磁盘

    公开(公告)号:US20100021768A1

    公开(公告)日:2010-01-28

    申请号:US12526866

    申请日:2008-02-13

    CPC分类号: G11B5/66 G11B5/855

    摘要: [PROBLEMS] To improve the track density by reducing the track edge noise and sharpening the boundaries of a recording magnetic field by blocking the recording magnetic field spreading outside the recording region in magnetic recording.[MEANS FOR SOLVING PROBLEMS] A magnetic recording medium (10) has a substrate (12) and a perpendicular magnetic recording layer (30) formed over the substrate (12). The perpendicular magnetic recording layer (30) has a granular layer (20) in which a magnetic signal is recorded and a continuous film layer (24) magnetically coupled to the granular layer (20). The continuous film layer (24) has hard magnetic portions (204) formed in positions corresponding to the recording regions where magnetic signals are recorded in the granular layer (20) and magnetic shield portions (202) formed between the hard magnetic portions (204), each having a magnetization curve whose slope is larger than those of the hard magnetic portions in the region where the applied magnetic filed is zero when the magnetization curve is measured, and each having a residual magnetic polarization smaller than those in the hard magnetic portions.

    摘要翻译: [问题]通过在磁记录中阻挡记录磁场外的记录磁场扩展,通过减小轨道边缘噪声和锐化记录磁场的边界来提高轨道密度。 解决问题的手段磁记录介质(10)具有在基板(12)上形成的基板(12)和垂直磁记录层(30)。 垂直磁记录层(30)具有其中记录有磁信号的粒状层(20)和磁性耦合到粒状层(20)的连续膜层(24)。 连续薄膜层(24)具有形成在磁性信号被记录在粒状层(20)中的记录区域对应的位置上的硬磁性部分(204)和形成在硬磁性部分(204)之间的磁屏蔽部分(202) 每个磁化曲线在测量磁化曲线时具有比施加的磁场为零的区域中的硬磁性部分的斜率大的磁化曲线,并且每个磁化曲线的残余磁极化小于硬磁性部分中的残余磁极化。

    Magnetic recording medium, magnetic recording medium manufacturing method, and magnetic disk
    5.
    发明授权
    Magnetic recording medium, magnetic recording medium manufacturing method, and magnetic disk 有权
    磁记录介质,磁记录介质制造方法和磁盘

    公开(公告)号:US08076013B2

    公开(公告)日:2011-12-13

    申请号:US12526866

    申请日:2008-02-13

    IPC分类号: G11B5/667

    CPC分类号: G11B5/66 G11B5/855

    摘要: A magnetic recording medium (10) has a substrate (12) and a perpendicular magnetic recording layer (30) formed over the substrate (12). The perpendicular magnetic recording layer (30) has a granular layer (20) in which a magnetic signal is recorded and a continuous film layer (24) magnetically coupled to the granular layer (20). The continuous film layer (24) has hard magnetic portions (204) formed in positions corresponding to the recording regions where magnetic signals are recorded in the granular layer (20) and magnetic shield portions (202) formed between the hard magnetic portions (204), each having a magnetization curve whose slope is larger than those of the hard magnetic portions in the region where the applied magnetic filed is zero when the magnetization curve is measured, and each having a residual magnetic polarization smaller than those in the hard magnetic portions.

    摘要翻译: 磁记录介质(10)具有形成在基板(12)上的基板(12)和垂直磁记录层(30)。 垂直磁记录层(30)具有其中记录有磁信号的粒状层(20)和磁性耦合到粒状层(20)的连续膜层(24)。 连续薄膜层(24)具有形成在磁性信号被记录在粒状层(20)中的记录区域对应的位置上的硬磁性部分(204)和形成在硬磁性部分(204)之间的磁屏蔽部分(202) 每个磁化曲线在测量磁化曲线时具有比施加的磁场为零的区域中的硬磁性部分的斜率大的磁化曲线,并且每个磁化曲线的残余磁极化小于硬磁性部分中的残余磁极化。

    Magnetic device with different planarization areas
    6.
    发明授权
    Magnetic device with different planarization areas 有权
    具有不同平面化区域的磁性装置

    公开(公告)号:US08946835B2

    公开(公告)日:2015-02-03

    申请号:US13618691

    申请日:2012-09-14

    IPC分类号: H01L29/82

    CPC分类号: G11B5/743 B44D3/18

    摘要: A planarization process may planarize a media disk that has data trenches between data features and larger servo trenches between servo features. A filler material layer is deposited on the media disk and provides step coverage of the trenches. The filler material has data recesses over the data trenches and servo recesses over the servo trenches that must be removed to produce a planar media surface. A first planarization process is used to remove the data recesses and a second planarization process is used to remove the servo recesses.

    摘要翻译: 平坦化处理可以平坦化在伺服特征之间具有数据特征和较大伺服沟槽之间的数据沟槽的介质盘。 填充材料层沉积在介质盘上并提供沟槽的台阶覆盖。 填充材料在伺服沟槽上的数据沟槽和伺服凹槽上具有必须被移除以产生平面介质表面的数据凹槽。 使用第一平面化处理来去除数据凹槽,并且使用第二平面化处理来去除伺服凹部。

    Method for fabricating patterned magnetic recording device
    7.
    发明授权
    Method for fabricating patterned magnetic recording device 有权
    图案化磁记录装置的制造方法

    公开(公告)号:US08900655B2

    公开(公告)日:2014-12-02

    申请号:US11542129

    申请日:2006-10-04

    摘要: A method of fabricating a patterned perpendicular magnetic recording medium comprises steps of: (a) providing a layer stack including a magnetically soft underlayer (“SUL”) and an overlying non-magnetic interlayer; (b) forming a masking layer on the non-magnetic interlayer; (c) forming a resist layer on the masking layer; (d) forming a pattern of recesses extending through the resist layer and exposing spaced apart surface portions of the masking layer; (e) extending the pattern of recesses through the masking layer to expose spaced apart surface portions of the interlayer; and (f) at least partially filling the pattern of recesses with a magnetically hard material to form a perpendicular magnetic recording layer.

    摘要翻译: 制造图案化的垂直磁记录介质的方法包括以下步骤:(a)提供包括磁软底层(“SUL”)和上覆非磁性中间层的层堆叠; (b)在非磁性中间层上形成掩模层; (c)在掩模层上形成抗蚀剂层; (d)形成延伸穿过抗蚀剂层并露出掩模层的间隔开的表面部分的凹陷图案; (e)将凹槽的图案延伸穿过掩模层以暴露中间层的间隔开的表面部分; 和(f)至少部分地用磁性硬的材料填充凹槽的图案以形成垂直的磁记录层。

    Method for imprint lithography
    8.
    发明授权
    Method for imprint lithography 有权
    压印光刻方法

    公开(公告)号:US08771529B1

    公开(公告)日:2014-07-08

    申请号:US12894640

    申请日:2010-09-30

    IPC分类号: B44C1/22

    CPC分类号: B29C59/022 G03F7/0002

    摘要: A method of imprint lithography includes imprinting a first pattern with a first template on a first substrate of a lithographic template. A second pattern is imprinted with a second template on the substrate of the lithographic template. The first pattern and the second pattern at least partially overlap, thus forming a third pattern. The third pattern is lithographically formed on a second substrate with the lithographic template. In an embodiment, the first pattern is a concentric line pattern formed by thin film deposition. In an embodiment, the second pattern is a radial line pattern. In an embodiment the first pattern and the second pattern may have line frequency increased.

    摘要翻译: 压印光刻的方法包括在光刻模板的第一衬底上印刷具有第一模板的第一图案。 第二图案在光刻模板的基底上印有第二模板。 第一图案和第二图案至少部分重叠,从而形成第三图案。 第三图案在具有光刻模板的第二基板上光刻形成。 在一个实施例中,第一图案是通过薄膜沉积形成的同心线图案。 在一个实施例中,第二图案是径向线图案。 在一个实施例中,第一图案和第二图案可以具有增加的线频率。

    System and Method for Forming a Servo Pattern on a Media Master
    9.
    发明申请
    System and Method for Forming a Servo Pattern on a Media Master 有权
    在媒体主机上形成伺服模式的系统和方法

    公开(公告)号:US20120049407A1

    公开(公告)日:2012-03-01

    申请号:US12873254

    申请日:2010-08-31

    IPC分类号: B29C33/42 B05C11/00

    CPC分类号: G11B5/865

    摘要: Producing a servo pattern on a media involves rotating a master, and during a first revolution of the master, forming a first transition at a first radial position on the master, and forming a first transition at a second radial position. During a second revolution of the master, a second transition at the first radial position is formed, and a second transition at the second radial position is formed. By exposing individual servo burst transitions located at the first and second radial positions, in separate disk revolutions, only one of the magnetic transitions will inherit a particular deflection from a nominal radial position. If there are any mechanical disturbances, each magnetic transition will be randomly displaced from its nominal position, reducing the written-in run-out by √n, where n is the number of magnetic transitions in a particular servo burst.

    摘要翻译: 在介质上产生伺服图案包括旋转主机,并且在主机的第一次旋转期间,在主机的第一径向位置处形成第一转变,并且在第二径向位置处形成第一转变。 在主机的第二次旋转期间,形成在第一径向位置处的第二过渡,并且形成在第二径向位置处的第二过渡。 通过暴露位于第一和第二径向位置处的单独的伺服脉冲串跃迁,在单独的磁盘转动中,只有一个磁性转变将从标称径向位置继承特定的偏转。 如果存在任何机械扰动,则每个磁性转换将从其标称位置随机移位,从而将写入跳动减少为√n,其中n是特定伺服脉冲串中的磁转换次数。

    Method for fabricating patterned magnetic recording media
    10.
    发明授权
    Method for fabricating patterned magnetic recording media 失效
    图案化磁记录介质的制造方法

    公开(公告)号:US07378028B2

    公开(公告)日:2008-05-27

    申请号:US10859202

    申请日:2004-06-03

    IPC分类号: G11B11/00

    CPC分类号: G11B5/855 Y10T428/24802

    摘要: A method of fabricating a patterned magnetic layer comprises sequential steps of:(a) providing a workpiece comprising a non-magnetic substrate, a layer of magnetic material overlying a surface of the substrate, and a layer of a non-magnetic material overlying the layer of magnetic material;(b) forming a layer of a mask material on the layer of non-magnetic material;(c) forming a topographical pattern comprising a plurality of recesses in the layer of mask material;(d) selectively removing portions of the layer of non-magnetic material proximate lower portions of the recesses, thereby exposing selected portions of the layer of magnetic material;(e) treating the exposed portions of the layer of magnetic material with a liquid for reducing the magnetic properties thereof; and(f) removing the topographically patterned layer of mask material.

    摘要翻译: 制造图案化磁性层的方法包括以下顺序的步骤:(a)提供包括非磁性衬底的工件,覆盖在衬底表面上的一层磁性材料,以及覆盖该层的非磁性材料层 的磁性材料; (b)在非磁性材料层上形成掩模材料层; (c)在所述掩模材料层中形成包括多个凹部的形貌图案; (d)选择性地去除所述凹陷的下部附近的非磁性材料层的部分,从而暴露所述磁性材料层的选定部分; (e)用液体处理磁性材料层的暴露部分以降低其磁特性; 和(f)去除掩模材料的地形图案层。