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1.发明申请MAGNETIC RECORDING DISK DRIVE WITH PATTERNED MEDIA AND OPTICAL SYSTEM FOR CLOCKING WRITE DATA 有权带有图形媒体的磁记录磁盘驱动器和用于定时写入数据的光学系统公开(公告)号：US20100061018A1
公开(公告)日：2010-03-11
申请号：US12209089
申请日：2008-09-11
IPC分类号： G11B5/82
CPC分类号： G11B5/314 , B82Y10/00 , G11B5/4866 , G11B5/59616 , G11B5/59677 , G11B5/743 , G11B5/82
摘要： A patterned-media magnetic recording disk drive uses an optical system for accurately clocking the write data. The disk has concentric data tracks patterned into discrete magnetizable data islands with nonmagnetic spaces between the islands. As the disk rotates, a radiation source directs near-field radiation to the islands and spaces, and a radiation detector receives reflected radiation. The radiation is directed from the source through an optical channel or waveguide on the air-bearing slider that supports the read and write heads. The optical channel or waveguide has a near-field transducer at the disk-facing surface of the slider where the near-field radiation exits and reflected radiation returns. The reflected optical power varies depending on whether the near-field transducer couples to an island or a space, so the radiation detector output signal represents the frequency and phase of the islands as the disk rotates. The write clock that controls write pulses to the write head is responsive to the radiation detector output signal, so the frequency and phase of the write clock signal can be matched to the frequency and phase of the islands as the disk rotates.
摘要翻译： 图形媒体磁记录磁盘驱动器使用光学系统来准确地计时写入数据。 磁盘具有图案化成离散的可磁化数据岛之间的同心数据轨道，岛之间具有非磁性空间。 当盘旋转时，辐射源将近场辐射引导到岛和空间，并且辐射检测器接收反射的辐射。 辐射从源通过支撑读写头的含气滑块上的光通道或波导引导。 光通道或波导在滑块的面向盘的表面处具有近场换能器，其中近场辐射离开并且反射辐射返回。 反射的光功率取决于近场换能器耦合到岛还是空间，因此辐射检测器输出信号表示盘旋转时岛的频率和相位。 将写入脉冲控制到写入头的写入时钟响应于辐射检测器输出信号，因此当时间盘旋转时，写时钟信号的频率和相位可以与岛的频率和相位匹配。
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2.发明授权Method for making a master mold with high bit-aspect-ratio for nanoimprinting patterned magnetic recording disks, master mold made by the method, and disk imprinted by the master mold 有权用于制造具有高比特宽比的用于纳米压印图案化磁记录盘的母模的方法，通过该方法制造的母模和由母模印制的盘公开(公告)号：US08003236B2
公开(公告)日：2011-08-23
申请号：US12141060
申请日：2008-06-17
IPC分类号： G11B5/64
CPC分类号： G11B5/855
摘要： A method for making a master mold to be used for nanoimprinting patterned-media magnetic recording disks results in a master mold having topographic pillars arranged in a pattern of annular bands of concentric rings. The ratio of circumferential density of the pillars to the radial density of the concentric rings in a band is greater than 1. The method uses sidewall lithography to first form a pattern of generally radially-directed pairs of parallel lines on the master mold substrate, with the lines being grouped into annular zones or bands. The sidewall lithography process can be repeated, resulting in a doubling of the number of lines each time the process is repeated. Conventional lithography is used to form concentric rings over the radially-directed pairs of parallel lines. After etching and resist removal, the master mold has pillars arranged in circular rings, with the rings grouped into annular bands. The master mold may be used to nanoimprint the disks, resulting in disks having a BAR greater than 1, wherein BAR is the ratio of data track spacing in the radial direction to the data island spacing in the circumferential direction.
摘要翻译： 用于制造用于纳米压印图案化介质磁记录盘的母模的方法导致具有布置成同心环的环形带图案的形状柱的母模。 柱的圆周密度与带中同心环的径向密度的比率大于1.该方法使用侧壁光刻法首先在母模基底上形成大致径向定向的平行线对图案，其中， 线路被分组成环形区域或带。 可以重复侧壁光刻处理，导致每次重复该过程的行数加倍。 常规光刻用于在径向对平行线上形成同心环。 在蚀刻和抗蚀剂去除之后，主模具有布置成圆形环的柱，其中环被分组成环形带。 主模可以用于纳米压印盘，导致具有大于1的BAR的盘，其中BAR是径向方向上的数据轨道间隔与圆周方向上的数据岛间隔的比率。
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3.发明申请METHOD FOR MAKING A MASTER MOLD WITH HIGH BIT-ASPECT-RATIO FOR NANOIMPRINTING PATTERNED MAGNETIC RECORDING DISKS, MASTER MOLD MADE BY THE METHOD, AND DISK IMPRINTED BY THE MASTER MOLD 有权用于制造具有高比特率比例的主模具用于纳米图案磁记录盘的方法，通过该方法制造的主模具和主模具所示的盘公开(公告)号：US20090310256A1
公开(公告)日：2009-12-17
申请号：US12141060
申请日：2008-06-17
CPC分类号： G11B5/855
摘要： A method for making a master mold to be used for nanoimprinting patterned-media magnetic recording disks results in a master mold having topographic pillars arranged in a pattern of annular bands of concentric rings. The ratio of circumferential density of the pillars to the radial density of the concentric rings in a band is greater than 1. The method uses sidewall lithography to first form a pattern of generally radially-directed pairs of parallel lines on the master mold substrate, with the lines being grouped into annular zones or bands. The sidewall lithography process can be repeated, resulting in a doubling of the number of lines each time the process is repeated. Conventional lithography is used to form concentric rings over the radially-directed pairs of parallel lines. After etching and resist removal, the master mold has pillars arranged in circular rings, with the rings grouped into annular bands. The master mold may be used to nanoimprint the disks, resulting in disks having a BAR greater than 1, wherein BAR is the ratio of data track spacing in the radial direction to the data island spacing in the circumferential direction.
摘要翻译： 用于制造用于纳米压印图案化介质磁记录盘的母模的方法导致具有布置成同心环的环形带图案的形状柱的母模。 柱的圆周密度与带中同心环的径向密度的比率大于1.该方法使用侧壁光刻法首先在母模基底上形成大致径向定向的平行线对的图案，其中， 线路被分组成环形区域或带。 可以重复侧壁光刻处理，导致每次重复该过程的行数加倍。 常规光刻用于在径向对平行线上形成同心环。 在蚀刻和抗蚀剂去除之后，主模具有布置成圆形环的柱，其中环被分组成环形带。 主模可以用于纳米压印盘，导致具有大于1的BAR的盘，其中BAR是径向方向上的数据轨道间隔与圆周方向上的数据岛间隔的比率。
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4.发明授权Patterned magnetic recording medium with data island pattern for improved reading and writing and magnetic recording system incorporating the medium 有权具有数据岛图案的图案化磁记录介质，用于改进读写和结合介质的磁记录系统公开(公告)号：US07782561B2
公开(公告)日：2010-08-24
申请号：US11680398
申请日：2007-02-28
IPC分类号： G11B5/09
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/02 , G11B5/74 , G11B5/743 , G11B5/746 , G11B5/855 , G11B2005/0002
摘要： A patterned magnetic recording medium has discrete data islands arranged in spaced-apart tracks, with the tracks being arranged in multi-track groups or “hypertracks”. The islands have an equal island-spacing (IS) distance in the along-the-track direction and within each hypertrack the tracks are spaced-apart an equal track-spacing (TS) distance. If there are N tracks in a hypertrack then the islands in each track of a hypertrack are shifted in the along-the-track direction by 1/N times IS from the islands in adjacent tracks in the same hypertrack. The read and write heads have a lateral or cross-track width generally equal to the cross-track width of a hypertrack, so the read and write heads span all the individual tracks in a hypertrack. The hypertracks are spaced apart cross-track direction by a group-spacing (GS) distance, with GS being greater than TS. The islands in a hypertrack may be shifted in the along-the-track direction by approximately ½N times IS from the islands in adjacent hypertracks.
摘要翻译： 图案化磁记录介质具有布置在间隔开的轨道中的离散数据岛，轨道被布置成多轨道组或“超曲线”。 这些岛在沿轨道方向上具有相等的岛间距（IS）距离，并且在每个超曲线内，轨迹间隔相等的轨道间距（TS）距离。 如果超轨迹中存在N个轨道，那么超轨迹的每个轨道中的岛屿沿轨道方向从同一超轨迹中相邻轨道中的岛屿移位IS / N次IS。 读写头具有通常等于超曲线的横向轨道宽度的横向或横向轨道宽度，因此读和写头跨越超轨迹中的所有单个轨道。 超曲线是跨距离方向间距（GS）距离，GS大于TS。 超轨迹中的岛屿可能沿着轨道方向从相邻超轨道中的岛屿移位约1/2倍的IS。
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5.发明申请PATTERNED MEDIA MAGNETIC RECORDING DISK DRIVE WITH WRITE CLOCK PHASE ADJUSTMENT FOR WRITE HEAD TRACK MISREGISTRATION 有权图形磁记录磁盘驱动器，用于写入头部跟踪误差的写时钟相位调整公开(公告)号：US20100309576A1
公开(公告)日：2010-12-09
申请号：US12477765
申请日：2009-06-03
IPC分类号： G11B21/02
CPC分类号： G11B5/59627 , B82Y10/00 , G11B5/743
摘要： A patterned-media magnetic recording disk drive has compensation for write head track misregistration (TMR) from the track centerline. As the disk rotates, the read head detects angularly spaced servo sectors and generates a position error signal (PES) which is used by the servo control system to maintain the read head on track. As the disk rotates, the read head also detects angularly spaced synchronization marks, which are used to control the write clock so that magnetization reversal of the magnetic write field from the write head is synchronized with the position of the data islands. If there is TMR of the write head, there will be an effective shift of A(p in the timing of when the center of the data islands pass through the write field. The disk drive includes write clock phase adjustment circuitry that correlates the PES with Δφ to compensate for TMR of the write head.
摘要翻译： 图案介质磁记录磁盘驱动器对从轨道中心线的写入磁头轨迹重合失调（TMR）进行补偿。 当磁盘旋转时，读取头检测角度间隔的伺服扇区，并产生位置误差信号（PES），伺服控制系统使用该位置误差信号来维持读取头的轨迹。 当盘旋转时，读取头还检测角度间隔的同步标记，其用于控制写入时钟，使得写入磁头的磁性写入磁场的磁化反转与数据岛的位置同步。 如果存在写入头的TMR，那么在数据岛的中心经过写入场的时刻，A（p）的有效移位就是写入时钟相位调整电路，它将PES与 ＆Dgr;＆phgr;补偿写入头的TMR。
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6.发明申请PATTERNED MAGNETIC RECORDING MEDIUM WITH DATA ISLAND PATTERN FOR IMPROVED READING AND WRITING AND MAGNETIC RECORDING SYSTEM INCORPORATING THE MEDIUM 有权带有数据海岛图案的图形磁记录介质，用于改进读取和写入和磁记录系统，并配有介质公开(公告)号：US20080204915A1
公开(公告)日：2008-08-28
申请号：US11680398
申请日：2007-02-28
IPC分类号： G11B5/09
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/02 , G11B5/74 , G11B5/743 , G11B5/746 , G11B5/855 , G11B2005/0002
摘要： A patterned magnetic recording medium has discrete data islands arranged in spaced-apart tracks, with the tracks being arranged in multi-track groups or “hypertracks”. The islands have an equal island-spacing (IS) distance in the along-the-track direction and within each hypertrack the tracks are spaced-apart an equal track-spacing (TS) distance. If there are N tracks in a hypertrack then the islands in each track of a hypertrack are shifted in the along-the-track direction by 1/N times IS from the islands in adjacent tracks in the same hypertrack. The read and write heads have a lateral or cross-track width generally equal to the cross-track width of a hypertrack, so the read and write heads span all the individual tracks in a hypertrack. The hypertracks are spaced apart cross-track direction by a group-spacing (GS) distance, with GS being greater than TS. The islands in a hypertrack may be shifted in the along-the-track direction by approximately ½N times IS from the islands in adjacent hypertracks.
摘要翻译： 图案化磁记录介质具有布置在间隔开的轨道中的离散数据岛，轨道被布置成多轨道组或“超曲线”。 这些岛在沿轨道方向上具有相等的岛间距（IS）距离，并且在每个超曲线内，轨迹间隔相等的轨道间距（TS）距离。 如果超轨迹中存在N个轨迹，则超轨迹的每个轨道中的岛屿沿着轨道方向从同一超轨迹中的相邻轨道中的岛屿移位IS / N次IS。 读写头具有通常等于超曲线的横向轨道宽度的横向或横向轨道宽度，因此读和写头跨越超轨迹中的所有单个轨道。 超曲线是跨距离方向间距（GS）距离，GS大于TS。 超轨迹中的岛屿可能沿着轨道方向从相邻超轨道中的岛屿移位约1/2倍的IS。
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7.发明授权Method using block copolymers for making a master disk with radial nondata marks for nanoimprinting patterned magnetic recording disks 失效使用嵌段共聚物制造具有用于纳米压印图案化磁记录盘的径向非标记标记的母盘的方法公开(公告)号：US08501022B2
公开(公告)日：2013-08-06
申请号：US13287761
申请日：2011-11-02
IPC分类号： B44C1/22
摘要： A method for making a master disk for nanoimprinting patterned-media magnetic recording disks has patterns for both the data islands and the nondata regions. The method uses guided self-assembly of a block copolymer (BCP) to form patterns of generally radial lines and/or generally concentric rings as well as patterns of gap regions of one of the BCP components. The pattern of lines and/or rings have the BCP components aligned as lamellae perpendicular to the substrate, while the pattern of gap regions has the BCP components aligned as lamellae parallel to the substrate. One of the BCP components is removed, leaving the other BCP component as an etch mask to fabricate either the final master disk or two separate molds that are then used to fabricate the master disk.
摘要翻译： 用于制造用于纳米压印图案化介质磁记录盘的母盘的方法具有用于数据岛和非数据区的图案。 该方法使用嵌段共聚物（BCP）的引导自组装形成大体上径向线和/或大致同心环的图案以及一种BCP组分的间隙区域的图案。 线和/或环的图案具有垂直于衬底的薄片对准的BCP组分，而间隙区域的图案将BCP组分排列成平行于衬底的薄片。 BCP组件中的一个被去除，另一个BCP组件作为蚀刻掩模来制造最终的主磁盘或两个单独的模具，然后用于制造主磁盘。
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8.发明申请PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK WITH SERVO REGIONS HAVING MAGNETIZED SERVO PILLARS AND OPPOSITELY-MAGNETIZED SERVO TRENCHES 有权带有伺服区域的磁性记录磁盘记录磁盘，具有磁化的伺服柱和相对磁化的伺服轨道公开(公告)号：US20110212347A1
公开(公告)日：2011-09-01
申请号：US13103143
申请日：2011-05-09
CPC分类号： G11B5/82 , B82Y10/00 , C23C14/04 , C23C14/16 , G11B5/59688 , G11B5/743 , G11B5/746 , G11B5/855
摘要： A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the height of the servo pillars is less than the spacing between the servo pillars. A magnetic recording material with perpendicular magnetic anisotropy is deposited over the entire disk substrate, which results in magnetic material on the tops of the data pillars and servo pillars and in the servo trenches. The material in the data trenches is either nonmagnetic or discontinuous. After the application of a high DC magnetic field in one perpendicular direction and a low DC magnetic field in the opposite direction, the resulting disk has patterned servo sectors with servo pillars all magnetized in the same perpendicular direction and servo trenches magnetized in the opposite perpendicular direction.
摘要翻译： 图案化的垂直磁记录盘具有预先图案化的盘基片，其具有布置在数据区域和伺服区域中的柱状物和沟槽。 在数据区域中，数据柱的高度等于或大于数据柱之间的间距，而在伺服区域中，伺服柱的高度小于伺服柱之间的间距。 具有垂直磁各向异性的磁记录材料沉积在整个盘基底上，这导致数据柱和伺服柱顶部以及伺服槽中的磁性材料。 数据沟槽中的材料是非磁性的或不连续的。 在相反方向上在一个垂直方向和低DC磁场上施加高DC磁场之后，所得到的盘具有带有伺服柱的图案化伺服扇区，其中所有伺服柱都在相同的垂直方向上被磁化，并且伺服沟槽在相反的垂直方向上被磁化 。
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9.发明申请METHOD USING BLOCK COPOLYMERS FOR MAKING A MASTER DISK WITH RADIAL NONDATA MARKS FOR NANOIMPRINTING PATTERNED MAGNETIC RECORDING DISKS 失效使用块状共聚物制备具有径向非标记标记的主磁盘的方法用于纳刻图形磁记录磁盘公开(公告)号：US20130105437A1
公开(公告)日：2013-05-02
申请号：US13287761
申请日：2011-11-02
摘要： A method for making a master disk for nanoimprinting patterned-media magnetic recording disks has patterns for both the data islands and the nondata regions. The method uses guided self-assembly of a block copolymer (BCP) to form patterns of generally radial lines and/or generally concentric rings as well as patterns of gap regions of one of the BCP components. The pattern of lines and/or rings have the BCP components aligned as lamellae perpendicular to the substrate, while the pattern of gap regions has the BCP components aligned as lamellae parallel to the substrate. One of the BCP components is removed, leaving the other BCP component as an etch mask to fabricate either the final master disk or two separate molds that are then used to fabricate the master disk.
摘要翻译： 用于制造用于纳米压印图案化介质磁记录盘的母盘的方法具有用于数据岛和非数据区的图案。 该方法使用嵌段共聚物（BCP）的引导自组装形成大体上径向线和/或大致同心环的图案以及一种BCP组分的间隙区域的图案。 线和/或环的图案具有垂直于衬底的薄片对准的BCP组分，而间隙区域的图案将BCP组分排列成平行于衬底的薄片。 BCP组件中的一个被去除，另一个BCP组件作为蚀刻掩模来制造最终的主磁盘或两个单独的模具，然后用于制造主磁盘。
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10.发明授权Shingled recording systems using multiple pass write, single pass read architecture 有权嵌入式录音系统采用多通写，单通读结构公开(公告)号：US08786969B2
公开(公告)日：2014-07-22
申请号：US13251031
申请日：2011-09-30
IPC分类号： G11B20/10
摘要： In one embodiment, a magnetic data storage system includes a bit patterned magnetic medium, wherein centers of bits in adjacent data tracks do not lie on a common line in a cross-track direction, a magnetic head having a writer element having a width greater than a width of a data track in a track width direction adapted for writing data successively to at least two adjacent data tracks of the magnetic medium, and a reader element having a width larger than the width of a data track in the track width direction adapted for reading data concurrently from the at least two adjacent data tracks of the magnetic medium in a single pass, a drive mechanism for passing the magnetic medium over the magnetic head, and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head.
摘要翻译： 在一个实施例中，磁数据存储系统包括位图形磁介质，其中相邻数据磁道中的位中心不位于交叉磁道方向上的公共线上，磁头具有写入器元件，宽度大于 适于将数据连续地写入磁介质的至少两个相邻数据轨道的轨道宽度方向上的数据轨道的宽度，以及宽度大于轨道宽度方向上的数据轨道的宽度的读取器元件， 在单次通过中从磁介质的至少两个相邻数据轨道同时读取数据，用于使磁介质通过磁头的驱动机构，以及电耦合到磁头的控制器，用于控制磁头的操作。
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