公开(公告)号：US20110212347A1

公开(公告)日：2011-09-01

申请号：US13103143

申请日：2011-05-09

申请人： Thomas R. Albrecht ,  Zvonimir Z. Bandic ,  Olav Hellwig ,  Gabriel Zeltzer

发明人： Thomas R. Albrecht ,  Zvonimir Z. Bandic ,  Olav Hellwig ,  Gabriel Zeltzer

IPC分类号： G11B5/65 ,  C23C14/34

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 。

公开(公告)号：US20100091408A1

公开(公告)日：2010-04-15

申请号：US12248117

申请日：2008-10-09

申请人： Thomas R. Albrecht ,  Hal J. Rosen

发明人： Thomas R. Albrecht ,  Hal J. Rosen

IPC分类号： G11B5/48

CPC分类号： G11B17/26 ,  G11B17/021

摘要： A hard disk drive (HDD) has a stack of disks mounted on a rotatable spindle with the disks being movable axially, i.e., in a direction parallel to the axis of rotation of the spindle. A disk separator is located inside the spindle and separates axially-adjacent disks in a pair to create an axial gap. Any pair of axially-adjacent disks can be separated so that different axial gaps are created. A single head-arm assembly with at least one and preferably two read write heads is movable axially so that it can be rotated by the rotary actuator into any one of the axial gaps. The read/write heads can thus access data on the disk surfaces in the axial gaps. When it is desired to have the disk separator create an new axial gap and thus a new pair of disk surfaces to be accessed, the actuator rotates the head-arm assembly away from the outer perimeters of the disks and moves the read/write heads onto a head support structure that supports the read/write heads off the disks.

摘要翻译： 硬盘驱动器（HDD）具有安装在可旋转主轴上的盘堆，盘可以轴向移动，即在与主轴的旋转轴线平行的方向上移动。 磁盘分离器位于主轴内部并且分离成一对轴向相邻的磁盘以产生轴向间隙。 可以分离任何一对轴向相邻的盘，使得产生不同的轴向间隙。 具有至少一个并且优选两个读写头的单个头臂组件可轴向移动，使得其可以由旋转致动器旋转到任何一个轴向间隙中。 因此，读/写头可以在轴向间隙中访问磁盘表面上的数据。 当希望磁盘分离器产生新的轴向间隙并且因此产生一对新的待访问的盘表面时，致动器将头臂组件旋转远离盘的外周，并将读/写头移动到 一个头部支持结构，支持磁盘上的读/写磁头。

公开(公告)号：US20100061018A1

公开(公告)日：2010-03-11

申请号：US12209089

申请日：2008-09-11

申请人： Thomas R. Albrecht ,  Manfred Ernst Schabes ,  Barry Cushing Stipe ,  Gabriel Zeltzer

发明人： Thomas R. Albrecht ,  Manfred Ernst Schabes ,  Barry Cushing Stipe ,  Gabriel Zeltzer

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。

公开(公告)号：US07667929B2

公开(公告)日：2010-02-23

申请号：US11098628

申请日：2005-04-04

申请人： Thomas R. Albrecht ,  Henry H. Yang

发明人： Thomas R. Albrecht ,  Henry H. Yang

IPC分类号： G11B23/00

CPC分类号： G11B5/86 ,  B82Y10/00 ,  G11B5/743

摘要： An apparatus, system, and method are disclosed for fabricating a patterned media imprint master. A substrate and a deposition mask may be fixably attached by an intervening spacing element, such that the substrate and deposition mask act as a unified element during a deposition process. A deposition mask may include a plurality of apertures generated by a conventional lithographic process. Material may be deposited onto the substrate through the deposition mask from more than one deposition source oriented at a unique deposition angle. A resulting substrate deposition pattern thus exhibits a density greater than a deposition mask aperture density while avoiding deposition pattern distortion.

摘要翻译： 公开了用于制造图案化介质压印母版的装置，系统和方法。 衬底和沉积掩模可以通过中间间隔元件固定地附接，使得衬底和沉积掩模在沉积过程中用作统一的元件。 沉积掩模可以包括由常规光刻工艺产生的多个孔。 材料可以通过沉积掩模从多于一个以独特沉积角度定向的沉积源沉积到衬底上。 因此，所得到的衬底沉积图案显示出比沉积掩模孔密度更大的密度，同时避免沉积图案失真。

公开(公告)号：US07643234B2

公开(公告)日：2010-01-05

申请号：US11964661

申请日：2007-12-26

申请人： Thomas R. Albrecht ,  Zvonimir Z. Bandic ,  Xiao Z. Wu

发明人： Thomas R. Albrecht ,  Zvonimir Z. Bandic ,  Xiao Z. Wu

IPC分类号： G11B5/09 ,  G11B21/02 ,  G11B5/596

CPC分类号： G11B5/5965

摘要： Servo patterns and associated methods of fabricating servo patterns are described. For patterned storage media, data sectors and servo sectors may be patterned using self-assembly. In one embodiment, self-assembly is used to form a first array of islands and a second array of islands in servo sectors that are track-wise offset. A servo writing process is then performed to write a desired servo pattern in the arrays, such as for burst fields, synchronization fields, etc.

摘要翻译： 描述了制造伺服模式的伺服模式和相关方法。 对于图案化存储介质，可以使用自组装图案化数据扇区和伺服扇区。 在一个实施例中，自组装被用于形成第一阵列阵列和在跟踪方向偏移的伺服扇区中的第二岛阵列。 然后执行伺服写入处理以在阵列中写入期望的伺服模式，例如用于突发字段，同步字段等。

公开(公告)号：US20090166321A1

公开(公告)日：2009-07-02

申请号：US11964680

申请日：2007-12-26

申请人： Thomas R. Albrecht ,  Xiao Z. Wu ,  Henry Hung Yang

发明人： Thomas R. Albrecht ,  Xiao Z. Wu ,  Henry Hung Yang

IPC分类号： B44C1/22

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B5/865

摘要： Methods of defining servo patterns and data patterns for forming patterned magnetic media are described. For one method, a lithographic process is performed to define a servo pattern in servo regions on a substrate. The lithographic process also defines a first data pattern in data regions of the substrate. The first data pattern is then transferred to (i.e., etched into) the data regions. Self-assembly structures are then formed on the data pattern in the data regions to define a second data pattern. The servo pattern is then transferred to the servo regions and the second data pattern is transferred to the data regions. Thus, the servo pattern is defined through lithographic processes while the data pattern is defined by a combination of lithographic processes and self-assembly.

摘要翻译： 描述了定义用于形成图案化磁性介质的伺服图案和数据图案的方法。 对于一种方法，执行光刻处理以在衬底上的伺服区域中定义伺服图案。 光刻工艺还定义了衬底的数据区域中的第一数据模式。 然后将第一数据模式转移到（即蚀刻）数据区。 然后在数据区域中的数据模式上形成自组装结构以定义第二数据模式。 然后将伺服模式传送到伺服区域，并将第二数据模式传送到数据区域。 因此，通过光刻工艺定义伺服图案，而数据图案由光刻工艺和自组装的组合来定义。

公开(公告)号：US07483363B2

公开(公告)日：2009-01-27

申请号：US11249287

申请日：2005-10-13

申请人： Thomas R. Albrecht

发明人： Thomas R. Albrecht

IPC分类号： G11B9/00

CPC分类号： G11B9/1445 ,  B82Y10/00 ,  Y10S977/947

摘要： A data storage device comprising a storage medium for storing data in the form of marks. An array of probes is mounted on a common frame. The common frame and the storage medium are designed for moving relative to each other for creating or detecting marks. Each probe is assigned a given field within the storage medium for creating or detecting marks in various tracks. A track density is representative of the distance between consecutive tracks. A linear density is representative of a minimum distance between consecutive marks within one track. The data storage device is designed for grouping the probes into various probe classes, each probe class being characterized in that all its assigned probes are controlled with a common track density and in that all its assigned probes are operated in respect of track movement simultaneously. Each probe class is controlled with a different combination of track density and linear density.

摘要翻译： 一种数据存储装置，包括用于以标记形式存储数据的存储介质。 探头阵列安装在公共框架上。 公共框架和存储介质被设计成相对于彼此移动以创建或检测标记。 在存储介质中为每个探针分配一个给定的场，用于创建或检测各种轨迹中的标记。 轨道密度代表连续轨迹之间的距离。 线性密度代表一个轨道内连续标记之间的最小距离。 数据存储装置被设计用于将探针分组成各种探针类别，每个探针类的特征在于其所有分配的探针都具有共同的轨道密度，并且所有分配的探针都相对于轨迹移动同时进行操作。 每个探针类别通过轨道密度和线密度的不同组合进行控制。

公开(公告)号：US07466506B1

公开(公告)日：2008-12-16

申请号：US11765335

申请日：2007-06-19

申请人： Thomas R. Albrecht ,  Zvonimir Z. Bandic

发明人： Thomas R. Albrecht ,  Zvonimir Z. Bandic

IPC分类号： G11B15/12 ,  G11B5/596

CPC分类号： G11B5/5547

摘要： A magnetic recording disk drive has disks with identical pre-patterned servo patterns on their front and back surfaces and a servo control system for positioning the read/write heads using the servo signals from the identical servo patterns. The servo sectors on the two disk surfaces form identical patterns of angularly spaced arcuate-shaped lines that extend generally radially across the data tracks. The arcuate-shaped lines on one surface, the front surface, generally replicate the path of the recording head as it is moved across the data tracks by a rotary actuator, so that there is a constant sampling rate of the servo sectors on the front surface regardless of radial position of the head. However, the arcuate-shaped lines on the other surface, the back surface, do not replicate the path of the recording head so the servo sampling rate is not constant but varies with radial position of the head. The disk drive servo control system implements a method to enable track seeking from one data track to another data track, regardless of whether the initial disk surface and the destination disk surface are front or back surfaces.

摘要翻译： 磁记录盘驱动器具有在其前表面和后表面上具有相同的预构图伺服图案的盘，以及用于使用来自相同伺服图案的伺服信号来定位读/写头的伺服控制系统。 两个磁盘表面上的伺服扇区形成相同的角度间隔的弓形线的图案，其大致径向延伸穿过数据轨道。 在一个表面上的弧形线，前表面，通常通过旋转致动器复制记录头的路径，使其在前表面上具有恒定的伺服扇区采样率 不管头部的径向位置如何。 然而，另一个表面上的弧形线，即背面，不会复制记录头的路径，因此伺服采样速率不是恒定的，而是随着磁头的径向位置而变化。 磁盘驱动器伺服控制系统实现了一种使得能够从一个数据轨道追踪到另一个数据轨道的方法，而不管初始磁盘表面和目标磁盘表面是前表面还是后表面。

公开(公告)号：US20080266701A1

公开(公告)日：2008-10-30

申请号：US11740289

申请日：2007-04-26

申请人： Thomas R. Albrecht ,  Zvonimir Z. Bandic

发明人： Thomas R. Albrecht ,  Zvonimir Z. Bandic

IPC分类号： G11B5/82 ,  G11B5/127 ,  G11B21/02

CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/59655 ,  G11B5/59688 ,  G11B5/743 ,  G11B5/82

摘要： A magnetic recording disk in a disk drive has identical pre-patterned servo patterns on its front and back surfaces. The servo patterns on each disk surface are pre-patterned with a single master template, resulting in the identical pattern on each disk surface. The servo sectors on the two disk surfaces can form identical patterns of angularly spaced arcuate-shaped lines or straight lines that extend radially across the data tracks. However, because the lines on at least one of the disk surfaces do not replicate the path of the recording head, the sampling rate of the servo sectors on that surface is not constant but varies with radial position of the head. To accommodate this, the disk drive's servo control system calculates a timing adjustment from an estimate of the radial position of the head and uses this timing adjustment to adjust the time to open a time window to allow detection of the servo sectors.

摘要翻译： 磁盘驱动器中的磁记录盘在其前表面和后表面上具有相同的预图案化伺服图案。 每个磁盘表面上的伺服图案都用单个主模板预先图案化，从而在每个磁盘表面上形成相同的图案。 两个磁盘表面上的伺服扇区可以形成相同的角度间隔的弓形线或沿着数据轨道径向延伸的直线。 然而，由于至少一个盘表面上的线不复制记录头的路径，所以在该表面上的伺服扇区的采样率不是恒定的，而是随着磁头的径向位置而变化。 为了适应这一点，磁盘驱动器的伺服控制系统根据头部的径向位置的估计来计算定时调整，并且使用该定时调整来调整打开时间窗口的时间以允许检测伺服扇区。

公开(公告)号：US07359138B1

公开(公告)日：2008-04-15

申请号：US11288604

申请日：2005-11-29

申请人： Thomas R. Albrecht ,  Peter M. Baumgart ,  Bernhard E. Knigge

发明人： Thomas R. Albrecht ,  Peter M. Baumgart ,  Bernhard E. Knigge

IPC分类号： G11B21/02 ,  G11B5/596 ,  G11B5/55

CPC分类号： G11B5/6029 ,  G11B5/5582 ,  G11B5/59694 ,  G11B5/6005 ,  G11B19/042

摘要： In method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider, a slider is isolated from ground. A velocity signal is acquired from the slider. The velocity signal is filtered to acquire a vibration signal. The vibration signal is adjusted in amplitude to achieve an amplitude adjusted vibration signal. The amplitude adjusted vibration signal is applied to the slider to actively dampen vibrations in the slider.

摘要翻译： 在用于硬盘驱动器滑块中滑块空气轴承振动的主动阻尼的反馈控制方法中，滑块与地面隔离。 从滑块获取速度信号。 对速度信号进行滤波以获取振动信号。 振幅信号的幅度进行调整，以实现振幅调节的振动信号。 振幅调节振动信号被施加到滑块以主动地抑制滑块中的振动。