公开(公告)号：US6142006A

公开(公告)日：2000-11-07

申请号：US121595

申请日：1998-07-24

申请人： Bruno Jean Marchon ,  David Shiao-Min Kuo ,  Wei Hsin Yao ,  Chiao-Ping Ku

发明人： Bruno Jean Marchon ,  David Shiao-Min Kuo ,  Wei Hsin Yao ,  Chiao-Ping Ku

IPC分类号： G01N29/24 ,  G11B21/21 ,  G11B33/10 ,  G01B7/34 ,  G01B11/30

CPC分类号： G01N29/2418 ,  G11B21/21 ,  G11B33/10 ,  G01N2291/014

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。

公开(公告)号：US06293135B1

公开(公告)日：2001-09-25

申请号：US09664713

申请日：2000-09-19

申请人： Bruno Jean Marchon ,  David Shiao-Min Kuo ,  Wei Hsin Yao ,  Chiao-Ping Ku

发明人： Bruno Jean Marchon ,  David Shiao-Min Kuo ,  Wei Hsin Yao ,  Chiao-Ping Ku

IPC分类号： G01B1130

CPC分类号： G01N29/2418 ,  G01N2291/014 ,  G11B21/21 ,  G11B33/10

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。

公开(公告)号：US06557399B1

公开(公告)日：2003-05-06

申请号：US09981533

申请日：2001-10-16

申请人： Chiao-Ping Ku ,  Bruno Jean Marchon

发明人： Chiao-Ping Ku ,  Bruno Jean Marchon

IPC分类号： G01B734

CPC分类号： G11B5/82 ,  G01B5/28 ,  G01B7/345 ,  G11B5/012 ,  G11B33/10

摘要： A disk surface asperities tester including a glidehead member having a piezoelectric sensor fabricated directly on the glidehead member. The piezoelectric sensors are useful in applications utilizing 70%, 50%, 30%, or smaller glideheads. The invention discloses a method for manufacturing sensors utilizing microchip fabrication techniques to form the piezoelectric sensors directly on glidehead surfaces, including standard Al2O3.TiC glideheads. The fabricated piezoelectric sensors are used in combination with signal processors to detect and analyze asperities in a disk drive surface.

摘要翻译： 一种盘表面粗糙度测试仪，包括直接在滑动构件上制造的具有压电传感器的滑动构件。 压电传感器可用于使用70％，50％，30％或更小的滑翔头的应用中。 本发明公开了一种使用微芯片制造技术制造传感器的方法，用于直接在滑动表面上形成压电传感器，包括标准Al 2 O 3 .TiC滑移头。 制造的压电传感器与信号处理器结合使用以检测和分析磁盘驱动器表面中的粗糙度。

公开(公告)号：US06314799B1

公开(公告)日：2001-11-13

申请号：US09122194

申请日：1998-07-23

申请人： Chiao-Ping Ku ,  Bruno Jean Marchon

发明人： Chiao-Ping Ku ,  Bruno Jean Marchon

IPC分类号： G01B528

CPC分类号： G11B5/82 ,  G01B5/28 ,  G01B7/345 ,  G11B5/012 ,  G11B33/10

摘要： A disk surface asperities tester including a glidehead member having a piezoelectric sensor fabricated directly on the glidehead member. The piezoelectric sensors are useful in applications utilizing 70%, 50%, 30%, or smaller glideheads. The invention discloses a method for manufacturing sensors utilizing microchip fabrication techniques to form the piezoelectric sensors directly on glidehead surfaces, including standard Al2O3.TiC glideheads. The fabricated piezoelectric sensors are used in combination with signal processors to detect and analyze asperities in a disk drive surface.

摘要翻译： 一种盘表面粗糙度测试仪，包括直接在滑动构件上制造的具有压电传感器的滑动构件。 压电传感器可用于使用70％，50％，30％或更小的滑翔头的应用中。 本发明公开了一种使用微芯片制造技术制造传感器的方法，用于直接在滑动表面上形成压电传感器，包括标准Al 2 O 3 .TiC滑移头。 制造的压电传感器与信号处理器结合使用以检测和分析磁盘驱动器表面中的粗糙度。

公开(公告)号：US07224551B1

公开(公告)日：2007-05-29

申请号：US10846041

申请日：2004-05-15

申请人： Jin Hui Ou-Yang ,  Lin Yang ,  Chiao-Ping Ku

发明人： Jin Hui Ou-Yang ,  Lin Yang ,  Chiao-Ping Ku

IPC分类号： G11B17/02

CPC分类号： G11B25/043 ,  G11B33/148

摘要： A disk drive includes a base, a spindle motor attached to the base, the spindle motor including a hub having hub apertures, a plurality of disks on the spindle motor and including a first and a second disk, a disk spacer between the first and second disks, and a disk clamp. The disk spacer has a plurality of spacer through apertures. Each of the spacer through apertures extend radially through the disk spacer. The disk clamp has clamp through apertures adjacent to an inner diameter of the disk clamp. Each of the clamp through apertures extend longitudinally through the disk clamp. The clamp through apertures, the hub apertures and the spacer through apertures are aligned for allowing airflow to pass through the apertures when the disks are rotating.

摘要翻译： 磁盘驱动器包括基座，连接到基座的主轴马达，主轴马达包括具有轮毂孔的轮毂，主轴马达上的多个盘，包括第一和第二盘，第一和第二盘之间的盘间隔件 磁盘和磁盘夹。 盘形间隔件具有多个间隔件通孔。 间隔通孔中的每一个径向地延伸穿过盘间隔件。 盘夹具通过与盘夹的内径相邻的孔夹紧。 夹紧通孔中的每一个纵向延伸通过盘夹。 夹紧通孔，轮毂孔和间隔件穿过孔对准，以便当盘旋转时允许气流穿过孔。

公开(公告)号：US07353524B1

公开(公告)日：2008-04-01

申请号：US10877746

申请日：2004-06-25

申请人： Jen-Tai Lin ,  Jin Hui Ou-Yang ,  Chiao-Ping Ku ,  Robert J. McNab ,  Shuo-Hao Chen ,  Lin Yang

发明人： Jen-Tai Lin ,  Jin Hui Ou-Yang ,  Chiao-Ping Ku ,  Robert J. McNab ,  Shuo-Hao Chen ,  Lin Yang

IPC分类号： G11B33/14

CPC分类号： G11B33/148 ,  G11B5/40 ,  G11B5/6005 ,  G11B25/043 ,  G11B33/08

摘要： A disk drive includes a disk drive base, a disk, and a head stack assembly rotatably coupled to the base adjacent the disk surface of the disk. The disk drive includes an airflow channeling enclosure. The enclosure includes an airflow inlet disposed downstream of the head stack assembly and configured to receive the disk rotation induced airflow therethrough. The enclosure further includes an airflow channel extending along the disk surface from the airflow inlet. The enclosure further includes an outer wall extending along the disk surface from the airflow inlet and defining the airflow channel radially interior to the outer wall. The enclosure further includes an airflow outlet disposed upstream of the head stack assembly extending from the outer wall and the channel opposite the airflow inlet for modifying the disk rotation induced airflow passing from the channel.

摘要翻译： 磁盘驱动器包括磁盘驱动器基座，磁盘以及与磁盘的盘表面相邻地可旋转地联接到基座的磁头堆叠组件。 磁盘驱动器包括气流通道外壳。 所述外壳包括设置在所述打印头组件组件下游的气流入口并且构造成容纳通过其中的盘旋转感应气流。 外壳还包括沿着盘表面从气流入口延伸的气流通道。 所述外壳还包括从所述气流入口沿所述盘表面延伸的外壁，并且在所述外壁的径向内部限定所述气流通道。 外壳还包括设置在头部堆叠组件的上游的气流出口，其从外壁和与气流入口相对的通道延伸，用于改变从通道传出的盘旋转引起的气流。

公开(公告)号：US06624966B1

公开(公告)日：2003-09-23

申请号：US09872193

申请日：2001-05-31

申请人： Jin Hui Ou-Yang ,  Serge Hauert ,  John R. Gustafson ,  Chiao-Ping Ku ,  Lin Yang ,  Gary C. Griffin ,  Aaron D. Little ,  Sudha Narayanan

发明人： Jin Hui Ou-Yang ,  Serge Hauert ,  John R. Gustafson ,  Chiao-Ping Ku ,  Lin Yang ,  Gary C. Griffin ,  Aaron D. Little ,  Sudha Narayanan

IPC分类号： G11B3314

CPC分类号： G11B5/60 ,  G11B33/08 ,  G11B33/14

摘要： A disk drive including a disk drive base. The disk drive further includes at least one rotatable disk which includes a disk surface extending to an outer disk edge. The disk drive further includes a head stack assembly rotatably attached to the disk drive base in operable communication with the disk. The disk drive further includes an airflow suppressor comb coupled to the disk drive base and stationary relative to the disk drive base during operation of the disk drive. The comb includes a comb body disposed adjacent to the outer disk edge, and at least one tine extending from the comb body along the disk surface for mitigating disk rotation induced airflow upon the head stack assembly adjacent to the disk surface.

摘要翻译： 包括磁盘驱动器基座的磁盘驱动器。 磁盘驱动器还包括至少一个可旋转盘，其包括延伸到外盘边缘的盘表面。 磁盘驱动器还包括可旋转地附接到磁盘驱动器基座的磁头堆叠组件，其可与磁盘可操作地通信。 磁盘驱动器还包括在盘驱动器的操作期间耦合到盘驱动器基座并相对于盘驱动器基座固定的气流抑制器梳。 梳子包括邻近外圆盘边缘设置的梳体，以及至少一个从梳齿体沿着盘表面延伸的齿，用于减轻与磁盘表面相邻的磁头堆叠组件上的磁盘旋转引起的气流。

公开(公告)号：US06267004B1

公开(公告)日：2001-07-31

申请号：US09247445

申请日：1999-02-10

申请人： Chiao-Ping Ku ,  Wei Yao

发明人： Chiao-Ping Ku ,  Wei Yao

IPC分类号： G11B560

CPC分类号： G11B5/6005 ,  G11B21/21 ,  G11B33/10

摘要： A glide test head assembly optimized for glide avalanche testing. The glide test head assembly of the present invention includes air bearing surfaces formed with a negative crown, or slightly concave surface. The negative crown of the air bearing surfaces of the inventive glide test head lowers the hydrodynamic pressure between the glide test head assembly and a spinning disc for given disc rotational speeds, enabling the glide test head assembly to fly at a lower heights at a greater linear velocity, and thus with increased stability. The increased flying stability of the inventive glide test head assembly improves the correlation between true flying height and disc/head contact detection for glide avalanche testing.

摘要翻译： 滑行测试头组件，优化滑雪雪崩测试。 本发明的滑行试验头组件包括形成有负冠或微凹表面的空气轴承表面。 本发明的滑行试验头的空气轴承表面的负冠降低了滑动试验头组件和用于给定盘旋转速度的旋转盘之间的流体动压力，使得滑行试验头组件能够以更大的线性在较低的高度飞行 速度，从而具有增加的稳定性。 本发明的滑行测试头组件的增加的飞行稳定性提高了实际飞行高度与用于滑行雪崩测试的盘/头接触检测之间的相关性。

公开(公告)号：US07379266B1

公开(公告)日：2008-05-27

申请号：US11856165

申请日：2007-09-17

申请人： Jin Hui Ou-Yang ,  Michael G. Choy ,  Jen-Tai Lin ,  Chiao-Ping Ku ,  Lin Yang ,  Gary C. Griffin

发明人： Jin Hui Ou-Yang ,  Michael G. Choy ,  Jen-Tai Lin ,  Chiao-Ping Ku ,  Lin Yang ,  Gary C. Griffin

IPC分类号： G11B33/14

CPC分类号： G11B33/146 ,  G11B25/043

摘要： There is provided a disk drive including a disk drive base, a disk rotatably coupled to the disk drive base, and a spindle motor attached to the disk drive base and configured to support the disk for rotating the disk with respect to the disk drive base. The disk drive further includes a filter component. The filter component includes a filter housing coupled to the disk drive base, and a pair of filter elements disposed within the filter housing for filtering disk rotation induced airflow. Each filter element includes a coarse section and a fine section, wherein the coarse section is positioned upstream of the fine section relative to a direction of the induced airflow.

摘要翻译： 提供了一种磁盘驱动器，其包括盘驱动器基座，可旋转地联接到盘驱动器基座的盘，以及连接到盘驱动器基座并被配置为支撑盘以相对于盘驱动器基座旋转盘的主轴马达。 磁盘驱动器还包括过滤器部件。 过滤器部件包括联接到盘驱动器基座的过滤器壳体和布置在过滤器壳体内的一对过滤器元件，用于过滤盘旋转引起的气流。 每个过滤元件包括粗糙部分和细部分，其中粗糙部分相对于感应气流的方向位于细部分的上游。

公开(公告)号：US06663938B1

公开(公告)日：2003-12-16

申请号：US09210018

申请日：1998-12-11

申请人： Wei H. Yao ,  Yuh-Jen Cheng ,  Li-Ping Wang ,  David S. Kuo ,  Chiao-Ping Ku ,  Bruno Marchon

发明人： Wei H. Yao ,  Yuh-Jen Cheng ,  Li-Ping Wang ,  David S. Kuo ,  Chiao-Ping Ku ,  Bruno Marchon

IPC分类号： G11B582

CPC分类号： G11B5/82 ,  G11B5/6005 ,  G11B23/0021 ,  Y10T428/24355

摘要： A magnetic data recording medium substrate has a contact zone and a data zone. The contact zone is textured by forming multiple texturing features, each having a bell-shaped profile resembling a Gaussian curve. The features preferably are formed by pulsed laser energy applied to a glass substrate, or to an aluminum nickel-phosphorous substrate coated with a glass layer. As compared to previous laser texturing approaches, the laser beam is less narrowly focused to provide a beam impingement area with a diameter of at least three microns, forming texturing features with diameters of at least three microns. The texturing features preferably are uniform in height and diameter, and may be symmetrical or have asymmetrical aspects, so long as bell-shaped profiles are present in the direction of travel of the recording medium, relative to transducing heads.

摘要翻译： 磁数据记录介质基板具有接触区和数据区。 通过形成多个纹理特征来形成接触区域，每个具有类似于高斯曲线的钟形轮廓。 特征优选通过施加到玻璃基板的脉冲激光能量或涂覆有玻璃层的铝镍磷基板形成。 与以前的激光纹理方法相比，激光束的聚焦较少，以提供直径至少为三微米的光束冲击区域，形成具有至少三微米直径的纹理特征。 纹理特征优选地在高度和直径上是均匀的，并且可以是对称的或具有不对称的方面，只要钟形轮廓相对于换能头在记录介质的行进方向上存在。