公开(公告)号：US06663938B1

公开(公告)日：2003-12-16

申请号：US09210018

申请日：1998-12-11

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

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

IPC: G11B582

CPC classification number: G11B5/82 ,  G11B5/6005 ,  G11B23/0021 ,  Y10T428/24355

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08472131B1

公开(公告)日：2013-06-25

申请号：US11856185

申请日：2007-09-17

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

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

IPC: G11B33/14

CPC classification number: G11B33/146 ,  G11B25/043

Abstract: 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 filter element disposed within the filter housing for filtering disk rotation induced airflow. The filter element includes a coarse section and a fine section. The coarse section has a porosity greater than a porosity of the fine section.

Abstract translation: 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。 过滤器部件包括耦合到盘驱动器基座的过滤器壳体和设置在过滤器壳体内的过滤元件，用于过滤盘旋转引起的气流。 过滤元件包括粗糙部分和细部分。 粗糙部分的孔隙率大于细部分的孔隙率。

公开(公告)号：US07239475B1

公开(公告)日：2007-07-03

申请号：US10856322

申请日：2004-05-28

Applicant: Jen-Tai Lin ,  Jin Hui Ou-Yang ,  Chiao-Ping Ku ,  Shuo-Hao Chen ,  Lin Yang

Inventor： Jen-Tai Lin ,  Jin Hui Ou-Yang ,  Chiao-Ping Ku ,  Shuo-Hao Chen ,  Lin Yang

IPC: G11B33/34

CPC classification number: G11B33/146 ,  G11B5/6005 ,  G11B17/32

Abstract: A disk drive including a disk drive base, a disk coupled to the disk drive base, and a head stack assembly coupled to the disk drive base. The disk drive further includes an airflow diverter filter component disposed upstream of the head stack assembly with respect to disk rotation induced airflow for modifying the disk rotation induced airflow adjacent the head stack assembly. The filter component includes a first filter element disposed adjacent the disk surface, a second filter element disposed between the first filter element and the head stack assembly, and a third filter element having a porosity finer than the first and second filter elements. The third filter element is generally radially further than the second filter element from the axis of rotation. The disk rotation induced airflow generally enters the filter component through the first filter element and exits through the second and third filter elements.

Abstract translation: 磁盘驱动器，包括磁盘驱动器基座，耦合到磁盘驱动器基座的磁盘以及耦合到磁盘驱动器基座的磁头堆叠组件。 磁盘驱动器还包括气流分流器过滤器部件，其布置在磁头堆叠组件的相对于磁盘旋转引起的气流的上游，用于修改与磁头堆叠组件相邻的磁盘旋转引起的气流。 过滤器部件包括邻近盘表​​面设置的第一过滤器元件，设置在第一过滤器元件和头部堆叠组件之间的第二过滤元件，以及具有比第一和第二过滤元件更细小的孔隙的第三过滤元件。 第三过滤元件通常比旋转轴线径向地比第二过滤元件更远。 盘旋转诱导气流通常通过第一过滤元件进入过滤器部件并且通过第二和第三过滤器元件排出。

公开(公告)号：US06293135B1

公开(公告)日：2001-09-25

申请号：US09664713

申请日：2000-09-19

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

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

IPC: G01B1130

CPC classification number: G01N29/2418 ,  G01N2291/014 ,  G11B21/21 ,  G11B33/10

Abstract: 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.

Abstract translation: 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。