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公开(公告)号：US20100264019A1
公开(公告)日：2010-10-21
申请号：US12829450
申请日：2010-07-02
IPC分类号： C23C14/46
CPC分类号： C23F4/00 , B82Y10/00 , G11B5/012 , G11B5/743 , G11B5/82 , G11B5/855 , H01J2237/30466 , H01J2237/3174
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 在通过以与角度为角度安装的离子计数器的入射颗粒的总数中; 相对于基板的垂直方向，根据平坦化膜的材料。
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公开(公告)号：US07782562B2
公开(公告)日：2010-08-24
申请号：US11527458
申请日：2006-09-27
IPC分类号： G11B15/18
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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83.发明授权Method for manufacturing a magnetic recording medium utilizing first and second imprint stampers 失效利用第一和第二压印机制造磁记录介质的方法公开(公告)号：US07575705B2
公开(公告)日：2009-08-18
申请号：US11691774
申请日：2007-03-27
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/865 , G11B2005/0002 , Y10S977/887 , Y10T29/49069
摘要： An imprint stamper for manufacturing a recording medium includes a first transfer region which corresponds to a servo region of a recording medium using a sector servo system and has a pattern with a plurality of quadrilateral recess or protrusion portions formed in a surface thereof, and a second transfer region which corresponds to a data region of the recording medium and has a pattern with a plurality of dots of recess or protrusion portions arrayed in a form of a hexagonal lattice in a surface thereof.
摘要翻译： 用于制造记录介质的压印模具包括对应于使用扇区伺服系统的记录介质的伺服区域的第一传送区域，并且具有形成在其表面中的多个四边形凹部或突出部分的图案，第二传送区域 转印区域对应于记录介质的数据区域，并且具有在其表面上排列成六角形格子形状的多个凹点或突起部分的图案。
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公开(公告)号：US20060141141A1
公开(公告)日：2006-06-29
申请号：US11360425
申请日：2006-02-24
IPC分类号： B05D5/12
摘要： A magnetic recording medium includes a non-magnetic substrate; a soft magnetic layer which is formed on the non-magnetic substrate and which includes projected parts arranged on the surface thereof and recessed parts surrounding each of the projected part; and a ferromagnetic layer which is formed on the soft magnetic layer and which includes projected parts and recessed parts reflecting the projected parts and the recessed parts of the soft magnetic layer. Further the magnetic recording medium includes recording areas which have perpendicular magnetic anisotropy and ferromagnetism, and which are formed of the projected parts of the ferromagnetic layer and separated magnetically from their surroundings. A method for manufacture of the magnetic recording medium includes forming a soft magnetic layer including of projected parts arranged regularly on the surface thereof and recessed parts surrounding each projected part; and forming a ferromagnetic layer having perpendicular magnetic anisotropy on the soft magnetic layer.
摘要翻译： 磁记录介质包括非磁性基片; 形成在非磁性基板上的软磁性层，其包括布置在其表面上的突出部分和围绕每个突出部分的凹陷部分; 以及形成在软磁性层上并且包括反映软磁性层的突出部分和凹陷部分的突出部分和凹陷部分的铁磁层。 此外，磁记录介质包括具有垂直磁各向异性和铁磁性的记录区域，并且由铁磁层的突出部分形成并与其周围磁性分离。 制造磁记录介质的方法包括形成软磁性层，其包括在其表面上规则排列的突出部分和围绕每个突出部分的凹陷部分; 并在软磁层上形成具有垂直磁各向异性的铁磁层。
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85.发明申请公开(公告)号：US20050225890A1
公开(公告)日：2005-10-13
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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86.发明申请公开(公告)号：US20050094298A1
公开(公告)日：2005-05-05
申请号：US10945030
申请日：2004-09-21
IPC分类号： G11B5/86
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/743 , G11B5/746 , G11B5/865 , G11B2005/0002 , Y10S977/887 , Y10T29/49069
摘要： An imprint stamper for manufacturing a recording medium includes a first transfer region which corresponds to a servo region of a recording medium using a sector servo system and has a pattern with a plurality of quadrilateral recess or protrusion portions formed in a surface thereof, and a second transfer region which corresponds to a data region of the recording medium and has a pattern with a plurality of dots of recess or protrusion portions arrayed in a form of a hexagonal lattice in a surface thereof.
摘要翻译： 用于制造记录介质的压印模具包括对应于使用扇区伺服系统的记录介质的伺服区域的第一传送区域，并且具有形成在其表面中的多个四边形凹部或突出部分的图案，第二传送区域 转印区域对应于记录介质的数据区域，并且具有在其表面上排列成六角形格子形状的多个凹点或突起部分的图案。
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87.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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88.发明授权公开(公告)号：US07572528B2
公开(公告)日：2009-08-11
申请号：US11135258
申请日：2005-05-24
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/72 , G11B5/743 , G11B5/82 , G11B5/855 , G11B2005/0029 , Y10T428/1164
摘要： A magnetic recording medium is obtained by easily patterning a magnetic recording layer without deteriorating its electromagnetic conversion characteristics, by forming a silicon-based protective film between the magnetic recording layer and a photoresist, and performing dry etching and oxygen plasma processing.
摘要翻译： 通过在磁记录层和光致抗蚀剂之间形成硅基保护膜，进行干法蚀刻和氧等离子体处理，可以通过在不损害其电磁转换特性的情况下容易地构图磁记录层而获得磁记录介质。
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89.发明申请公开(公告)号：US20070003798A1
公开(公告)日：2007-01-04
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
IPC分类号： G11B5/706
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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公开(公告)号：US07067207B2
公开(公告)日：2006-06-27
申请号：US10702439
申请日：2003-11-07
摘要： A magnetic recording medium includes a non-magnetic substrate; a soft magnetic layer which is formed on the non-magnetic substrate and which includes projected parts arranged on the surface thereof and recessed parts surrounding each of the projected part; and a ferromagnetic layer which is formed on the soft magnetic layer and which includes projected parts and recessed parts reflecting the projected parts and the recessed parts of the soft magnetic layer. Further the magnetic recording medium includes recording areas which have perpendicular magnetic anisotropy and ferromagnetism, and which are formed of the projected parts of the ferromagnetic layer and separated magnetically from their surroundings. A method for manufacture of the magnetic recording medium includes forming a soft magnetic layer including of projected parts arranged regularly on the surface thereof and recessed parts surrounding each projected part; and forming a ferromagnetic layer having perpendicular magnetic anisotropy on the soft magnetic layer.
摘要翻译： 磁记录介质包括非磁性基片; 形成在非磁性基板上的软磁性层，其包括布置在其表面上的突出部分和围绕每个突出部分的凹陷部分; 以及形成在软磁性层上并且包括反映软磁性层的突出部分和凹陷部分的突出部分和凹陷部分的铁磁层。 此外，磁记录介质包括具有垂直磁各向异性和铁磁性的记录区域，并且由铁磁层的突出部分形成并与其周围磁性分离。 制造磁记录介质的方法包括形成软磁性层，其包括在其表面上规则排列的突出部分和围绕每个突出部分的凹陷部分; 并在软磁层上形成具有垂直磁各向异性的铁磁层。
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