Magnetic recording medium and method for manufacturing the same
    32.
    发明授权
    Magnetic recording medium and method for manufacturing the same 有权
    磁记录介质及其制造方法

    公开(公告)号:US07323258B2

    公开(公告)日:2008-01-29

    申请号:US10947132

    申请日:2004-09-23

    IPC分类号: G11B5/64 G11B5/39 B32B15/04

    摘要: A magnetic recording medium which allows high density recording and has excellent durability can be obtained. A magnetic recording medium includes: a plurality of ferromagnetic material dots arranged on a soft magnetic layer formed on a non-magnetic substrate so as to be separated from one another; and carbon films which are formed on the respective ferromagnetic material dots, each carbon film having a smooth film face shape in a section passing through the center of each ferromagnetic material dot and a film thickness gradually decreasing from the center of the ferromagnetic material dot toward an outer edge thereof.

    摘要翻译: 可以获得允许高密度记录并具有优异的耐久性的磁记录介质。 磁记录介质包括:多个铁磁材料点,其布置在形成在非磁性基板上以便彼此分离的软磁层上; 和形成在各个铁磁材料点上的碳膜,每个碳膜在穿过每个铁磁材料点的中心的部分中具有平滑的薄膜表面形状,并且薄膜厚度从铁磁材料点的中心逐渐减小到 的外边缘。

    Method for manufacturing substrate for discrete track recording media and method for manufacturing discrete track recording media
    33.
    发明授权
    Method for manufacturing substrate for discrete track recording media and method for manufacturing discrete track recording media 失效
    用于制造用于离散轨道记录介质的基板的方法和用于制造离散轨道记录介质的方法

    公开(公告)号:US07314833B2

    公开(公告)日:2008-01-01

    申请号:US11476038

    申请日:2006-06-28

    IPC分类号: H01L21/302

    摘要: According to one embodiment, a method for manufacturing a substrate for a discrete track recording media, the method includes forming an imprint resist layer on a substrate, imprinting, on the imprint resist layer, a stamper formed with patterns of protrusions and recesses corresponding to recording track zones and servo zones to transfer the patterns of protrusions and recesses to the imprint resist layer, removing the stamper from the imprint resist layer, and diffusing liquefied CO2 in a process chamber set at a pressure of 2 to 5 atm, diffusing liquefied H2O in the process chamber set at a pressure of 0.01 to 1 atm, or diffusing a reactive gas selected from a group consisting of liquefied CF4, CHF3, SF6, and C2F6 in the process chamber set at an arbitrary pressure, to jet spray the liquefied gas onto a surface of the substrate.

    摘要翻译: 根据一个实施例,一种用于制造用于离散轨道记录介质的基板的方法,所述方法包括在基板上形成压印抗蚀剂层,在压印抗蚀剂层上压印形成有对应于记录的突起和凹部的图案的压模 轨道区域和伺服区域,以将突起和凹陷的图案转印到抗蚀剂层,从压印抗蚀剂层移除压模,并将液化CO 2扩散到设置在压力为2的处理室中 至5atm,在处理室中扩散液化H 2 O 2,压力为0.01至1atm,或扩散选自液化CF 4 >,CHF 3 3,SF 6 6和C 2 F 6 6在设置在任意压力下的处理室中 将液化气喷射到基板的表面上。

    Magnetic recording media, magnetic recording apparatus, and method for manufacturing magnetic recording media
    34.
    发明申请
    Magnetic recording media, magnetic recording apparatus, and method for manufacturing magnetic recording media 有权
    磁记录介质,磁记录装置和磁记录介质的制造方法

    公开(公告)号:US20070230055A1

    公开(公告)日:2007-10-04

    申请号:US11723977

    申请日:2007-03-22

    IPC分类号: G11B5/82

    摘要: A magnetic recording media includes a toroidal substrate, a surface thereof is divided into a recording area located in a central part between an outer peripheral edge and an inner peripheral edge, edge areas located within 100 μm or more and 2,000 μm or less from the outer and inner peripheral edges, respectively, and adjacent areas located between the edge areas and the recording area, respectively, a magnetic film on the substrate, and a protective film on the magnetic film, in which the magnetic film is thinner in the edge areas than that in the adjacent areas, and at least a part of the protective film in the edge areas is thicker than that in the adjacent areas.

    摘要翻译: 磁记录介质包括环形基板,其表面被分成位于外周边缘和内周边缘之间的中心部分的记录区域,位于距离外部边缘100μm以上且2000μm以下的边缘区域 分别位于边缘区域和记录区域之间的内周边缘和相邻区域,基板上的磁性膜和磁性膜上的保护膜,其中磁性膜在边缘区域中比薄 在相邻区域中,边缘区域中的保护膜的至少一部分比相邻区域的保护膜厚。

    Magnetic recording apparatus
    36.
    发明申请
    Magnetic recording apparatus 审中-公开
    磁记录装置

    公开(公告)号:US20070002481A1

    公开(公告)日:2007-01-04

    申请号:US11475863

    申请日:2006-06-28

    IPC分类号: G11B5/09

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

    摘要: According to one embodiment, a magnetic recording apparatus has a magnetic recording media including a substrate having protrusions and recesses corresponding to a servo zone and a data zone and a magnetic layer deposited thereon, and a read/write head including a pair of magnetic shields and a giant magnetoresistive element, in which a track pitch of the media ranges 20 to 300 nm, a linear velocity of the magnetic recording media is 11 m/s, and a distance m from the magnetic shield to the magnetic layer on the protrusions of the media and a distance d between the magnetic layer on the protrusions and that on the recesses in the servo zone of the media are satisfies the condition that the value of d/m is 0.2 or more and 3 or less.

    摘要翻译: 根据一个实施例,磁记录装置具有磁记录介质,该磁记录介质包括具有与伺服区对应的突起和凹部的基板,以及沉积在其上的数据区和磁性层,以及包括一对磁屏蔽的读/写头 介质的磁道间距为20〜300nm,磁记录媒体的线速度为11m / s,从磁屏蔽到磁性层的距离m为大的磁阻元件, 介质和介质上的磁性层与介质的伺服区的凹部之间的距离d满足d / m的值为0.2以上且3以下的条件。

    Method and apparatus for manufacturing magnetic recording media
    37.
    发明申请
    Method and apparatus for manufacturing magnetic recording media 失效
    制造磁记录介质的方法和装置

    公开(公告)号:US20070000861A1

    公开(公告)日:2007-01-04

    申请号:US11475873

    申请日:2006-06-28

    摘要: According to one embodiment, a method for manufacturing a magnetic recording medium includes forming patterns having protrusions and recesses of a ferromagnetic material onto a recording track section and a servo section on a substrate, forming a flattening film, a top surface of which is higher than that of the protrusion of the ferromagnetic material, onto the ferromagnetic material, and performing ion beam etching onto the flattening film up to a top surface of the protrusion of the ferromagnetic material, and determining an end point of flattening etching on the basis of a change in the total number of incident particles by means of an ion counter installed so as to be at an angle θ with respect to a perpendicular direction to the substrate in accordance with a material of the flattening film.

    摘要翻译: 根据一个实施例,一种制造磁记录介质的方法包括将具有铁磁材料的突起和凹陷的图案形成在记录轨道部分和基板上的伺服部分上,形成平坦化膜,其顶表面高于 将铁磁材料的突出部分突出到铁磁材料上,并且对平坦化膜进行离子束蚀刻直到铁磁材料的突起的顶表面,并且基于变化确定平坦化蚀刻的终点 在通过离子计数器安装的入射颗粒的总数中,根据平坦化膜的材料相对于垂直于衬底的方向成角度θ。

    Imprint apparatus and method for imprinting
    38.
    发明申请
    Imprint apparatus and method for imprinting 有权
    压印设备和印刷方法

    公开(公告)号:US20050284320A1

    公开(公告)日:2005-12-29

    申请号:US10952743

    申请日:2004-09-30

    IPC分类号: G11B5/855 B41G7/00 G03F7/00

    摘要: An imprint apparatus configured such that it can press a laminate structure in which a magnetic film and a resist film are sequentially laminated on a substrate. The imprint apparatus includes a first press plate configured to mount the laminate structure, a second press plate adapted for sandwiching the laminate structure, a stamper placed on a surface of the second press plate, and has projections and recesses configured to be transferred onto the resist film, and a light source configured to dispose on the same plane as the laminate structure, and is oriented so that the light source can shine the resist film.

    摘要翻译: 一种压印装置,其构造成能够将其中磁性膜和抗蚀剂膜依次层压在基板上的层叠结构。 压印装置包括构造成安装层叠结构的第一压板,适于夹持层叠结构的第二压板,设置在第二压板的表面上的压模,并且具有被配置为转印到抗蚀剂上的突起和凹陷 膜,以及配置为与层叠结构在同一平面上的光源,并且被定向成使得光源能够照射抗蚀剂膜。