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公开(公告)号：US20060280861A1
公开(公告)日：2006-12-14
申请号：US11406502
申请日：2006-04-19
CPC分类号： G11B5/855
摘要： A method for producing a magnetic recording medium, includes: forming an SOG film on a surface of a magnetic layer; forming a concavo-convex structure in the SOG film comprising one selected from a group consisting of silica glass, alkylsiloxane polymer, methyl silsesquioxane polymer, hydrogen silsesquioxane polymer and hydro alkylsiloxane polymer; etching the SOG film to expose the surface of the magnetic layer; etching the exposed surface of the magnetic layer by ion milling; and forming a filling layer on the surface of the magnetic layer while leaving a portion of the magnetic layer having been subjected to the ion milling.
摘要翻译： 一种制造磁记录介质的方法，包括：在磁性层的表面上形成SOG膜; 在SOG膜中形成凹凸结构，其包含选自二氧化硅玻璃，烷基硅氧烷聚合物，甲基倍半硅氧烷聚合物，氢倍半硅氧烷聚合物和氢烷基硅氧烷聚合物的一种; 蚀刻SOG膜以暴露磁性层的表面; 通过离子研磨蚀刻磁性层的暴露表面; 并且在磁性层的表面上形成填充层，同时留下已经进行离子铣削的磁性层的一部分。
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62.发明授权公开(公告)号：US08349163B2
公开(公告)日：2013-01-08
申请号：US12961388
申请日：2010-12-06
CPC分类号： G11B5/855 , B82Y10/00 , B82Y40/00 , C25D1/003 , C25D1/10 , G03F7/0002 , G11B5/746 , G11B5/865
摘要： According to one embodiment, an electroforming master comprises a patterns of protrusions and recesses formed on one major surface of an Si substrate having two major surfaces, corresponding to information for positioning of a read/write head (a preamble, address, and burst), recording tracks or recording bits. Impurity ions are doped in the surface of this patterns of protrusions and recesses. The impurity ion concentration distribution in the film thickness direction of the Si substrate has a peak in a portion from the patterns of protrusions and recesses surface to a depth of 40 nm in the film thickness direction. The impurity concentration of this peak is 1×1020 to 2×1021 ions/cm3.
摘要翻译： 根据一个实施例，电铸母版包括形成在具有两个主表面的Si衬底的一个主表面上的突起和凹槽的图案，其对应于用于定位读/写头（前导码，地址和突发）的信息， 记录轨道或记录位。 杂质离子掺杂在这种突起和凹陷图案的表面。 Si衬底的膜厚方向上的杂质离子浓度分布在从薄膜厚度方向的突起和凹陷表面的图案到深度为40nm的部分中具有峰值。 该峰的杂质浓度为1×1020〜2×1021离子/ cm3。
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63.发明授权Stamper, method of manufacturing the stamper, and magnetic recording medium manufacturing method using the stamper 失效压模，制造压模的方法以及使用压模的磁记录介质制造方法公开(公告)号：US08308965B2
公开(公告)日：2012-11-13
申请号：US13093221
申请日：2011-04-25
申请人： Masatoshi Sakurai , Satoshi Shirotori , Seiji Morita , Shinobu Sugimura , Takuya Shimada , Yoshiyuki Kamata
发明人： Masatoshi Sakurai , Satoshi Shirotori , Seiji Morita , Shinobu Sugimura , Takuya Shimada , Yoshiyuki Kamata
摘要： According to one embodiment, a stamper manufacturing method includes forming a conductive material concentration gradient layer including the projections pattern, and a composition ratio of a buffering agent to a conductive material in the conductive material concentration gradient layer reducing in a thickness direction from a master side.
摘要翻译： 根据一个实施例，压模制造方法包括形成包括突起图案的导电材料浓度梯度层，并且导电材料浓度梯度层中的缓冲剂与导电材料的组成比在厚度方向上从主侧减小 。
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公开(公告)号：US08097351B2
公开(公告)日：2012-01-17
申请号：US11341849
申请日：2006-01-30
申请人： Takeshi Okino , Seiji Morita , Yoshiyuki Kamata , Satoshi Shirotori , Masatoshi Sakurai , Hiroaki Nakamura
发明人： Takeshi Okino , Seiji Morita , Yoshiyuki Kamata , Satoshi Shirotori , Masatoshi Sakurai , Hiroaki Nakamura
IPC分类号： G11B5/66
CPC分类号： G11B5/855
摘要： A magnetic recording apparatus has a magnetic recording media including a substrate and a magnetic layer containing magnetic patterns on the substrate, the magnetic layer including data zones to constitute recoding tracks and servo zones, the magnetic patterns of the servo zones being used as address bits, and a magnetic head configured to read signals from the magnetic recording media while flying over the magnetic recording media, in which, in a case where two magnetic patterns used as address bits on the servo zones corresponding to two adjacent recording tracks are arranged in such a manner that one corner of one magnetic pattern is closest to one corner of the other magnetic pattern, the corners of the two magnetic patterns are substantially separated from each other.
摘要翻译： 磁记录装置具有包括基板和在基板上包含磁图案的磁性层的磁记录介质，磁层包括构成记录轨道和伺服区的数据区，伺服区的磁图用作地址位， 以及磁头，被配置为在磁记录介质上飞行时从磁记录介质读取信号，其中在用于作为与两个相邻记录轨道对应的伺服区上的地址位的两个磁图案布置在这样的 一个磁性图案的一个角最靠近另一个磁性图案的一个角的方式，两个磁性图案的角部基本上彼此分离。
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65.发明申请公开(公告)号：US20080117544A1
公开(公告)日：2008-05-22
申请号：US11942904
申请日：2007-11-20
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/59688 , G11B5/743 , G11B5/855
摘要： According to one embodiment, a magnetic recording medium includes a substrate, and a magnetic recording layer formed on the substrate and having patterns of protrusions and recesses corresponding to a servo area and a recording area, in which the magnetic recording layer located in each of the recesses in the recording area has a thickness smaller than two thirds of a thickness of the magnetic recording layer corresponding to each of the protrusions, the magnetic recording layer remaining in each of the recesses in the recording area has a thickness of 1 nm or more, and a difference in height on a surface of the magnetic recording medium is 7 nm or less.
摘要翻译： 根据一个实施例，磁记录介质包括基板和形成在基板上并具有对应于伺服区域和记录区域的突起和凹槽的图案的磁记录层，其中磁记录层位于每个 记录区域中的凹部的厚度小于与每个突起相对应的磁记录层的厚度的三分之二，记录区域中每个凹槽中残留的磁记录层的厚度为1nm以上， 并且磁记录介质的表面上的高度差为7nm以下。
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公开(公告)号：US07738203B2
公开(公告)日：2010-06-15
申请号：US11092682
申请日：2005-03-30
摘要： A magnetic recording medium has a RAM region and a ROM region. The RAM region includes a plurality of first tracks each having a first magnetic portion. The first magnetic portions in adjacent tracks are separated from each other. The ROM region includes a plurality of second tracks each having a second magnetic portion. A width of the second magnetic portions in a direction perpendicular to a track direction of the first tracks is larger than that of the first magnetic portions in the perpendicular direction.
摘要翻译： 磁记录介质具有RAM区域和ROM区域。 RAM区域包括多个具有第一磁性部分的第一轨道。 相邻轨道中的第一磁性部分彼此分离。 ROM区域包括多个具有第二磁性部分的第二磁道。 第二磁性部分在与第一磁道的轨道方向垂直的方向上的宽度大于垂直方向上的第一磁性部分的宽度。
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公开(公告)号：US20080002297A1
公开(公告)日：2008-01-03
申请号：US11822132
申请日：2007-07-02
IPC分类号： G11B5/82
摘要： According to one embodiment, there is provided a magnetic recording media including a substrate, and a magnetic recording layer including magnetic film patterns formed in a protruded form on the substrate, sidewalls of the magnetic film patterns having at least two faces of different slope angles.
摘要翻译： 根据一个实施例，提供一种包括基板的磁记录介质和包括在基板上形成为突出形状的磁膜图案的磁记录层，磁膜图案的侧壁具有至少两个不同倾斜角的面。
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公开(公告)号：US20070070547A1
公开(公告)日：2007-03-29
申请号：US11527458
申请日：2006-09-27
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/65 , G11B5/66 , G11B5/667 , G11B5/743 , G11B5/855 , G11B2005/0029
摘要： According to one embodiment, a magnetic recording media includes a magnetic recording layer formed on a substrate, in which recording tracks and servo areas are prescribed as patterns of protrusions and recesses formed on the magnetic recording layer so that thin film portions of the magnetic recording layer are formed under the recesses, a thickness of magnetic recording layer at the thin film portion is smaller than a thickness of magnetic recording layer at the protrusion in the servo area, and a magnetization direction of the protrusion is antiparallel to a magnetization direction of the thin film in the servo area.
摘要翻译： 根据一个实施例，磁记录介质包括形成在基板上的磁记录层，其中记录轨道和伺服区被指定为在磁记录层上形成的突起和凹槽的图案，使得磁记录层的薄膜部分 形成在凹部下方，薄膜部分处的磁记录层的厚度小于伺服区域中的突起处的磁记录层的厚度，并且突起的磁化方向与薄的磁化方向反平行 电影在伺服区。
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69.发明申请Method for manufacturing substrate for discrete track recording media and method for manufacturing discrete track recording media 失效用于制造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：US20070001331A1
公开(公告)日：2007-01-04
申请号：US11476038
申请日：2006-06-28
IPC分类号： B29C45/76
CPC分类号： G03F7/0002 , B08B7/0092 , B82Y10/00 , B82Y40/00 , G11B5/8404 , G11B5/855
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。
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70.发明授权公开(公告)号：US07635529B2
公开(公告)日：2009-12-22
申请号：US11475862
申请日：2006-06-28
申请人： Katsuyuki Naito , Masatoshi Sakurai , Akira Kikitsu , Yoshiyuki Kamata , Naoko Kihara , Masahiro Oka
发明人： Katsuyuki Naito , Masatoshi Sakurai , Akira Kikitsu , Yoshiyuki Kamata , Naoko Kihara , Masahiro Oka
CPC分类号： G11B5/7315
摘要： According to one embodiment, a substrate for a magnetic recording media has circumferential protrusions corresponding to recording tracks and circumferential recesses corresponding to grooves between the recording tracks, in which the substrate satisfying at least one of conditions of (a) a surface of the recess has a surface energy smaller than that of the protrusion, (b) the surface of the recess is modified with a thermally decomposable or deformable substance, (c) the surface of the recess has surface roughness smaller than that of the protrusion, (d) crystal orientation is more disturbed on the surface of the recess than on the protrusion, (e) the surface of the recess is modified with a substance that causes reaction with a magnetic material or that diffuses into the magnetic material, and (f) the surface of the recess is modified with a substance soluble in a solvent or with a deformable substance.
摘要翻译： 根据一个实施例，用于磁记录介质的基底具有对应于记录轨迹的周向突起和对应于记录轨道之间的凹槽的周向凹部，其中满足以下条件中的至少一个的基底：（a）凹部的表面具有 表面能小于突起的表面能，（b）凹部的表面用可热分解或可变形的物质进行改性，（c）凹陷表面的表面粗糙度小于突起的表面粗糙度，（d）晶体 在凹部的表面上比在突起上的取向更加干扰，（e）凹部的表面用引起与磁性材料反应或扩散到磁性材料中的物质进行改性，和（f） 该凹部用可溶于溶剂或可变形物质的物质进行改性。
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