Magnetic storage medium having a textured zone
    1.
    发明授权
    Magnetic storage medium having a textured zone 有权
    具有纹理区域的磁性存储介质

    公开(公告)号:US06519114B1

    公开(公告)日:2003-02-11

    申请号:US09272786

    申请日:1999-03-19

    IPC分类号: G11B584

    CPC分类号: G11B5/855 G11B5/6005

    摘要: A storage medium is provided that includes a texture zone having a plurality of protrusions. Each of the protrusions is separated by a short circumferential pitch. Alternatively, the texture zone includes a plurality of protrusions with a circumferential pitch less than the diameter of any protrusion. The resonance excitation between the magnetic head and the storage medium in the data storage system is reduced by forming the texture zone with the protrusions that cause the excitation frequencies of the data storage system to shift away from its resonance frequencies.

    摘要翻译: 提供一种存储介质,其包括具有多个突起的纹理区域。 每个突起被短的圆周间距分开。 或者,纹理区域包括具有小于任何突起的直径的周向间距的多个突起。 数据存储系统中的磁头和存储介质之间的共振激励通过用引起数据存储系统的激发频率偏离谐振频率的突起形成纹理区而减小。

    Method of calibrating a system for detecting contact of a glide head with a recording media surface
    2.
    发明授权
    Method of calibrating a system for detecting contact of a glide head with a recording media surface 失效
    校准用于检测滑动头与记录介质表面的接触的系统的方法

    公开(公告)号:US06293135B1

    公开(公告)日:2001-09-25

    申请号:US09664713

    申请日:2000-09-19

    IPC分类号: G01B1130

    摘要: A method and apparatus for calibrating a glide head and detector system performs a pre-screening to ensure the quality of the glide head and the piezoelectric sensor in the detection system. The glide head and the piezoelectric sensor detect a signal when the glide head makes contact with the disk, such as a magnetic recording disk. Calibration of the detection system utilizes a specially made bump disk that has asperities of desired height and size that protrude out of a flat disk surface. The glide head is flown over the bump disk, and by gradually reducing the disk spinning velocity, the head is brought closer to the disk and eventually into contact with the asperity. The onset of contact, as detected by the piezoelectric sensor, defines a disk spinning velocity for the head to fly at the desired height. In order to decouple the glide head flying characteristics and the piezoelectric quality and transfer function from other factors that affect the calibration of the detection system, laser pulses are directed at the glide head. Head vibrations are introduced in the glide head and detected by the piezoelectric sensor. The head excitations are recorded as a spectrogram in which the resonance frequencies are observed. From the amplitude and frequency readings, head resonance frequencies are identified and the piezoelectric sensor response is characterized. This allows the pre-screening of the head/sensor system and the decoupling of the glide head flying characteristics and the piezoelectric sensor quality from the asperity integrity effects on the calibration of the detection system.

    摘要翻译: 用于校准滑行头和检测器系统的方法和装置进行预筛选以确保检测系统中的滑动头和压电传感器的质量。 滑动头和压电传感器在滑动头与磁盘(例如磁记录盘)接触时检测信号。 检测系统的校准使用特别制造的凸起盘,其具有从平坦盘表面突出的期望的高度和尺寸的粗糙度。 滑动头在凸块上方飞行,通过逐渐减小磁盘旋转速度,磁头更接近磁盘并最终与凹凸接触。 由压电传感器检测到的接触开始限定了磁头旋转速度以使头部以期望的高度飞行。 为了从其他影响检测系统校准的因素中去除滑行头的飞行特性和压电质量和传递函数,激光脉冲指向滑行头。 头部振动被引入到滑动头中并由压电传感器检测。 磁头激励被记录为其中观察到共振频率的频谱图。 从振幅和频率读数,识别头部谐振频率,并表征压电传感器响应。 这允许头部/传感器系统的预筛选和滑翔头飞行特性和压电传感器质量的去耦从对检测系统的校准的粗糙度完整性影响。

    Combination glide test/burnishing head and head suspension
    3.
    发明授权
    Combination glide test/burnishing head and head suspension 失效
    组合滑行测试/抛光头和头悬挂

    公开(公告)号:US06580572B1

    公开(公告)日:2003-06-17

    申请号:US09737388

    申请日:2000-12-14

    IPC分类号: G11B502

    摘要: A combination glide test/burnishing head can be utilized in a glide test/burnishing system. The combination glide test/burnishing head includes two piezo-electric elements, which can be utilized in a passive mode as sensors for detecting contacts between the glide test/burnishing head and asperities on the surface of a magnetic recording disc. Contact between the glide test/burnishing head and disc asperities results in generation of a defect detection signal, which can be utilized by associated test logic to define the location of the detected asperities on the disc surface. The piezo-electric elements of the glide test/burnishing head can also be utilized in an active mode to cause yaw variation in the flight attitude of the glide test/burnishing head, in turn causing a burnishing pad on the glide test/burnishing head to be moved radially into contact with a detected disc asperity. Once an active, burnishing operation has been performed, the piezo-electric elements of the glide test/burnishing head are returned to passive mode, to determine if the burnishing operation was successful in removing the asperity on the disc surface. Combining the glide test and burnishing functions in a common head assembly allows the glide test and burnishing functions to be performed using a single actuator for the glide test/burnishing head, simplifying and reducing the cost of a glide test/burnishing system.

    摘要翻译: 组合滑行试验/抛光头可用于滑移试验/抛光系统。 组合滑行测试/抛光头包括两个压电元件,其可以被动模式用作用于检测滑动测试/抛光头与磁记录盘表面上的凹凸之间的接触的传感器。 滑动测试/抛光头和盘形凹凸之间的接触导致产生缺陷检测信号,该缺陷检测信号可由相关联的测试逻辑用来定义检测到的凹凸在盘表面上的位置。 滑行试验/抛光头的压电元件也可以以主动模式使用,以使滑行试验/抛光头的飞行姿态产生偏航变化,从而在滑动试验/抛光头上造成抛光垫 径向移动以与检测到的圆盘凹凸接触。 一旦执行了主动的抛光操作,滑动测试/抛光头的压电元件返回到被动模式,以确定抛光操作是否成功地去除了盘表面上的凹凸。 将滑动试验和抛光功能结合在共同的头部组件中,允许使用用于滑动试验/抛光头的单个致动器来执行滑行试验和抛光功能,从而简化和降低滑动试验/抛光系统的成本。

    Method and apparatus for calibrating a glide head and detection system
for a magnetic disk drive
    4.
    发明授权
    Method and apparatus for calibrating a glide head and detection system for a magnetic disk drive 失效
    用于校准滑动头的方法和装置以及用于磁盘驱动器的检测系统

    公开(公告)号:US6142006A

    公开(公告)日:2000-11-07

    申请号:US121595

    申请日:1998-07-24

    摘要: A method and apparatus for calibrating a glide head and detector system performs a pre-screening to ensure the quality of the glide head and the piezoelectric sensor in the detection system. The glide head and the piezoelectric sensor detect a signal when the glide head makes contact with the disk, such as a magnetic recording disk. Calibration of the detection system utilizes a specially made bump disk that has asperities of desired height and size that protrude out of a flat disk surface. The glide head is flown over the bump disk, and by gradually reducing the disk spinning velocity, the head is brought closer to the disk and eventually into contact with the asperity. The onset of contact, as detected by the piezoelectric sensor, defines a disk spinning velocity for the head to fly at the desired height. In order to decouple the glide head flying characteristics and the piezoelectric quality and transfer function from other factors that affect the calibration of the detection system, laser pulses are directed at the glide head. Head vibrations are introduced in the glide head and detected by the piezoelectric sensor. The head excitations are recorded as a spectrogram in which the resonance frequencies are observed. From the amplitude and frequency readings, head resonance frequencies are identified and the piezoelectric sensor response is characterized. This allows the pre-screening of the head/sensor system and the decoupling of the glide head flying characteristics and the piezoelectric sensor quality from the asperity integrity effects on the calibration of the detection system.

    摘要翻译: 用于校准滑行头和检测器系统的方法和装置进行预筛选以确保检测系统中的滑动头和压电传感器的质量。 滑动头和压电传感器在滑动头与磁盘(例如磁记录盘)接触时检测信号。 检测系统的校准使用特别制造的凸起盘,其具有从平坦盘表面突出的期望的高度和尺寸的粗糙度。 滑动头在凸块上方飞行,通过逐渐减小磁盘旋转速度,磁头更接近磁盘并最终与凹凸接触。 由压电传感器检测到的接触开始限定了磁头旋转速度以使头部以期望的高度飞行。 为了从其他影响检测系统校准的因素中去除滑行头的飞行特性和压电质量和传递函数,激光脉冲指向滑行头。 头部振动被引入到滑动头中并由压电传感器检测。 磁头激励被记录为其中观察到共振频率的频谱图。 从振幅和频率读数,识别头部谐振频率,并表征压电传感器响应。 这允许头部/传感器系统的预筛选和滑翔头飞行特性和压电传感器质量的去耦从对检测系统的校准的粗糙度完整性影响。

    Resist removal from patterned recording media
    5.
    发明授权
    Resist removal from patterned recording media 有权
    阻挡图案化记录介质的去除

    公开(公告)号:US06753130B1

    公开(公告)日:2004-06-22

    申请号:US10047105

    申请日:2002-01-17

    IPC分类号: G03F700

    摘要: A method for patterning a carbon-containing substrate utilizing a patterned layer of a resist material as a mask and then safely removing the mask from the substrate without adversely affecting the substrate, comprising sequential steps of: (a) providing a substrate including a surface comprising carbon; (b) forming a thin metal layer on the substrate surface; (c) forming a layer of a resist material on the thin metal layer; (d) patterning the layer of resist material; (e) patterning the substrate utilizing the patterned layer of resist material as a pattern-defining mask; and (f) removing the mask utilizing the thin metal layer as a wet strippable layer or a plasma etch/ash stop layer.

    摘要翻译: 一种利用抗蚀剂材料的图案化层作为掩模来图案化含碳衬底的方法,然后从衬底安全地除去掩模而不会不利地影响衬底,包括以下顺序的步骤:(a)提供包括表面的衬底,包括: 碳;(b)在所述基板表面上形成薄金属层;(c)在所述薄金属层上形成抗蚀剂材料层;(d)图案化所述抗蚀剂材料层;(e) 抗蚀剂材料层作为图案定义掩模; 和(f)使用薄金属层作为湿剥离层或等离子体蚀刻/灰停止层去除掩模。

    Recognizing and compensating for disk shift in computer disk drives
    6.
    发明授权
    Recognizing and compensating for disk shift in computer disk drives 失效
    识别和补偿计算机磁盘驱动器中的磁盘移位

    公开(公告)号:US06405449B1

    公开(公告)日:2002-06-18

    申请号:US09779220

    申请日:2001-02-07

    IPC分类号: B65G4722

    摘要: A method and apparatus for data disks adapted to compensate for effects of shock loads imparted to a disk drive which are of sufficient magnitude to cause disk shifts. A series of topographical features are formed on the disk surface or edge to cause signal fluctuation in a sensor during read-back mode operation. An initial signal profile is stored as a map indicative of track or disk alignment with respect to the actuator assembly. Selectively, such as after a known shock event, the topographical features are re-profiled. A comparison of the profiles provides a measure of any track distortion which must be compensated for in future read-write operations by adjustments to data track servo follower algorithms.

    摘要翻译: 一种用于数据盘的方法和装置,适用于补偿赋予磁盘驱动器的冲击载荷的影响,磁盘驱动器具有足够大的幅度以引起磁盘移位。 在磁盘表面或边缘上形成一系列地形特征,以在回读模式操作期间引起传感器中的信号波动。 初始信号轮廓被存储为指示相对于致动器组件的轨道或盘对准的映射。 选择性地,例如在已知的冲击事件之后,地形特征被重新分类。 配置文件的比较可以提供任何跟踪失真的量度,通过调整数据轨道伺服跟随器算法,必须在将来的读写操作中对其进行补偿。

    Recognizing and compensating for disk shift in computer disk drives
    7.
    发明授权
    Recognizing and compensating for disk shift in computer disk drives 失效
    识别和补偿计算机磁盘驱动器中的磁盘移位

    公开(公告)号:US06301797B1

    公开(公告)日:2001-10-16

    申请号:US09325887

    申请日:1999-06-04

    IPC分类号: B65G4722

    摘要: A method and apparatus for data disks adapted to compensate for effects of shock loads imparted to a disk drive which are of sufficient magnitude to cause disk shifts. A series of topographical features are formed on the disk surface or edge to cause signal fluctuation in a sensor during read-back mode operation. An initial signal profile is stored as a map indicative of track or disk alignment with respect to the actuator assembly. Selectively, such as after a known shock event, the topographical features are re-profiled. A comparison of the profiles provides a measure of any track distortion which must be compensated for in future read-write operations by adjustments to data track servo follower algorithms.

    摘要翻译: 一种用于数据盘的方法和装置,适用于补偿赋予磁盘驱动器的冲击载荷的影响,磁盘驱动器具有足够大的幅度以引起磁盘移位。 在磁盘表面或边缘上形成一系列地形特征,以在回读模式操作期间引起传感器中的信号波动。 初始信号轮廓被存储为指示相对于致动器组件的轨道或盘对准的映射。 选择性地,例如在已知的冲击事件之后,地形特征被重新分类。 配置文件的比较可以提供任何跟踪失真的量度,通过调整数据轨道伺服跟随器算法,必须在将来的读写操作中对其进行补偿。

    Method and apparatus for enhanced sensitivity fly height testing and measurement
    8.
    发明授权
    Method and apparatus for enhanced sensitivity fly height testing and measurement 失效
    增强灵敏度飞高测试和测量的方法和装置

    公开(公告)号:US06665077B1

    公开(公告)日:2003-12-16

    申请号:US09884929

    申请日:2001-06-21

    IPC分类号: G01B1102

    摘要: A method and apparatus for performing interferometric measurement/testing of flying heights of read-write head sliders utilizing an improved rotating disk, the disk having a central opening for use with a spindle for rotation about a central axis, the disk comprising: a substrate comprised of a light transmissive material and including a pair of opposed, smooth, major surfaces; and a wear-resistant, protective overcoat layer on one of the major surfaces for improving the tribological properties thereof; wherein the optical properties of the one surface of the disk are optimized for enhancing the sensitivity of the interferometric measurement/testing by increasing the intensity of reflected light received by a detector of the apparatus.

    摘要翻译: 一种用于利用改进的旋转盘对读写头滑块的飞行高度进行干涉测量/测试的方法和装置,所述盘具有用于与中心轴线一起旋转的心轴的中心开口,所述盘包括:衬底, 的透光材料并且包括一对相对的,平滑的主表面; 在其中一个主表面上具有耐磨保护外涂层,用于改善其摩擦学性能;其中盘的一个表面的光学性质被优化,以通过增加反射的强度来提高干涉测量/测试的灵敏度 由装置的检测器接收的光。

    Surface planarization of magnetic disk media
    9.
    发明授权
    Surface planarization of magnetic disk media 失效
    磁盘介质的表面平坦化

    公开(公告)号:US06338811B2

    公开(公告)日:2002-01-15

    申请号:US09874544

    申请日:2001-06-04

    IPC分类号: B29C5900

    CPC分类号: G11B5/8404

    摘要: A method for producing a substantially smooth surface on a computer disk media comprises providing a substantially smooth master surface. A curable polymer dielectric composition is applied to the master surface as well as the surface of the disk to be smoothed. The master surface is then pressed onto the disk surface and the polymer is cured. The master surface is then removed and the cured polymer forms a smooth surface on the disk.

    摘要翻译: 用于在计算机磁盘介质上产生基本平滑表面的方法包括提供基本平滑的主表面。 将可固化聚合物电介质组合物施加到主表面以及待平滑的盘的表面。 然后将主表面压在盘表面上,聚合物固化。 然后去除主表面,并且固化的聚合物在盘上形成光滑的表面。

    Planarization Method for Media
    10.
    发明申请
    Planarization Method for Media 有权
    媒体平面化方法

    公开(公告)号:US20130070370A1

    公开(公告)日:2013-03-21

    申请号:US13618691

    申请日:2012-09-14

    IPC分类号: G11B5/74

    CPC分类号: G11B5/743 B44D3/18

    摘要: A planarization process may planarize a media disk that has data trenches between data features and larger servo trenches between servo features. A filler material layer is deposited on the media disk and provides step coverage of the trenches. The filler material has data recesses over the data trenches and servo recesses over the servo trenches that must be removed to produce a planar media surface. A first planarization process is used to remove the data recesses and a second planarization process is used to remove the servo recesses.

    摘要翻译: 平坦化处理可以平坦化在伺服特征之间具有数据特征和较大伺服沟槽之间的数据沟槽的介质盘。 填充材料层沉积在介质盘上并提供沟槽的台阶覆盖。 填充材料在伺服沟槽上的数据沟槽和伺服凹槽上具有必须被移除以产生平面介质表面的数据凹槽。 使用第一平面化处理来去除数据凹槽,并且使用第二平面化处理来去除伺服凹部。