公开(公告)号：US06473259B1

公开(公告)日：2002-10-29

申请号：US09405832

申请日：1999-09-24

申请人： David S. Kuo ,  Wei H. Yao ,  Ramesh Sundaram ,  Huan Tang

发明人： David S. Kuo ,  Wei H. Yao ,  Ramesh Sundaram ,  Huan Tang

IPC分类号： G11B2102

CPC分类号： G11B21/21 ,  G11B5/60

摘要： A disk head fly height adjustment method includes positioning a disk head over a surface of a rotating data storage disk and dynamically altering a load point of the disk head by changing an electrical force applied to an active element mounted to a head-gimbal assembly. A data storage apparatus includes a head assembly having a data transfer head coupled to a gimbal and an active element coupling the head assembly and a suspension. The active element is configured to exert a force between the head assembly and the suspension in response to an electrical force applied to the active element. The active element can dynamically shift a load point of a disk head. Shifting the load point can alter the pitch of the disk head and, consequently, the fly height of the head.

摘要翻译： 盘头飞行高度调节方法包括将盘头定位在旋转数据存储盘的表面上，并且通过改变施加到安装到头部万向节组件上的有源元件的电力来动态地改变盘头的负载点。 数据存储装置包括头组件，其具有耦合到万向节的数据传送头和联接头组件和悬架的有源元件。 有源元件构造成响应于施加到有源元件的电力而在头部组件和悬架之间施加力。 有源元件可以动态地移动磁盘头的负载点。 移动负载点可以改变磁头的间距，从而改变磁头的飞行高度。

公开(公告)号：US06667844B1

公开(公告)日：2003-12-23

申请号：US09404038

申请日：1999-09-23

申请人： Wei H. Yao ,  Ramesh Sundaram ,  David S. Kuo

发明人： Wei H. Yao ,  Ramesh Sundaram ,  David S. Kuo

IPC分类号： G11B2102

CPC分类号： G11B5/4833 ,  G11B5/58 ,  G11B21/20

摘要： The active vibration suppression of a slider suspension arm is achieved by including as part of the suspension arm two bimorph piezoelectric elements. A first bimorph piezoelectric element is attached to the top of the suspension arm and acts as a sensor. A second bimorph piezoelectric element is attached to the bottom of the suspension arm and acts as an actuator. The actuator is controlled as a function of a voltage measured by the sensor so that the actuator damps periodic vibrations occurring in the suspension arm.

摘要翻译： 通过将悬臂的一部分包括两个双压电晶片压电元件来实现滑块悬架臂的主动振动抑制。 第一个双压电晶片压电元件连接到悬臂的顶部并用作传感器。 第二双压电晶片压电元件附接到悬架臂的底部并用作致动器。 致动器根据传感器测量的电压进行控制，以便致动器可以抑制悬臂中发生的周期振动。

公开(公告)号：US06229670B1

公开(公告)日：2001-05-08

申请号：US09381079

申请日：2000-01-14

申请人： David S. Kuo ,  Wei H. Yao ,  Ramesh Sundaram

发明人： David S. Kuo ,  Wei H. Yao ,  Ramesh Sundaram

IPC分类号： G11B582

CPC分类号： G11B23/0035 ,  G11B5/54 ,  G11B5/5582 ,  G11B5/6005 ,  G11B5/6011 ,  G11B5/7315 ,  G11B5/7325 ,  G11B5/82 ,  G11B5/84 ,  G11B5/8404 ,  G11B5/8408 ,  G11B21/12 ,  G11B21/21 ,  G11B21/22 ,  G11B33/08

摘要： A magnetic data storage medium includes a dedicated transducing head contact zone for engaging an air bearing slider, primarily when the disk is stationary. The contact zone is textured with at least one elongate ridge extending in the circumferential direction. When a single ridge is formed, it runs in a spiral path in multiple turns with a predetermined radial pitch at least ten times the nominal ridge width. The ridge protrudes axially outward from a nominal surface plane of the contact zone, and is rounded and free of sharp edges. The ridge, or plurality of ridge sections, can be formed by a texturing process that includes directing a laser beam, focused, onto the contact zone surface. While the disk is rotated to maintain a constant circumferential speed relative to the laser, it also is translated radially to provide the desired radial pitch. The laser is operated in a CW (continuous wave) mode, to create a more uniform ridge.

摘要翻译： 磁数据存储介质包括用于接合空气轴承滑块的专用换能头接触区，主要是当盘静止时。 接触区域具有在圆周方向上延伸的至少一个细长脊纹理。 当形成单个脊时，其以预定的径向间距以多匝的螺旋路径延伸至少十倍于标称脊宽度。 脊从接触区的标称表面平面向外突出，并且圆形且没有锋利的边缘。 脊或多个脊部可以通过纹理化工艺形成，其包括将聚焦在接触区表面上的激光束引导。 当盘旋转以相对于激光器保持恒定的圆周速度时，其也被径向平移以提供期望的径向间距。 激光以CW（连续波）模式操作，以创建更均匀的脊。

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。

公开(公告)号：US06619105B1

公开(公告)日：2003-09-16

申请号：US09834039

申请日：2001-04-12

申请人： Wei H. Yao ,  David S. Kuo

发明人： Wei H. Yao ,  David S. Kuo

IPC分类号： G01B528

CPC分类号： G11B5/6005 ,  G11B5/455

摘要： A glide head supporting a glide transducer for glide test operations. The glide head includes a textured glide interface for glide height stability. The textured glide interface provides an anti-collapse protection feature for glide test operations.

摘要翻译： 一个滑翔头，支持滑翔测试操作的滑翔传感器。 滑翔头包括一个纹理滑动界面，用于滑行高度稳定性。 纹理滑动界面为滑行测试操作提供了防崩溃保护功能。

公开(公告)号：US06404590B1

公开(公告)日：2002-06-11

申请号：US09381365

申请日：2000-01-06

申请人： David S. Kuo ,  Bruno Marchon ,  Wei H. Yao

发明人： David S. Kuo ,  Bruno Marchon ,  Wei H. Yao

IPC分类号： G11B566

CPC分类号： G11B5/84 ,  B23K26/0823 ,  G11B5/6011 ,  G11B5/74 ,  G11B5/82 ,  G11B5/8404 ,  G11B17/32

摘要： A magnetic data storage medium includes a dedicated transducing head contact zone for engaging an air bearing slider, primarily when the disk is stationary. The contact zone is textured with an irregular sequence of spaced apart nodules forming a substantially circumferential, spiral path. The spiral path includes multiple terms that define a uniform radial pitch. The circumferential pitch is irregular, more preferably determined according to pseudo-random function in which the actual spacing intervals vary about a nominal interval, over a range comparable to, but generally less than, the interval. The pseudo-random array can be formed by a texturing process that includes directing a focused laser beam onto the contact zone. The disk is rotated to maintain a constant circumferential speed relative to the laser, and also is translated radially to provide the desired radial pitch. The laser is operated in a continuous wave mode, with an acousto-optic modulator between the laser and disk operated to provide a pseudo-random variance in time intervals between successive laser exposures.

摘要翻译： 磁数据存储介质包括用于接合空气轴承滑块的专用换能头接触区，主要是当盘静止时。 接触区域具有形成基本上圆周的螺旋路径的间隔开的结节的不规则序列。 螺旋路径包括限定均匀径向间距的多个项。 圆周间距是不规则的，更优选地根据伪随机函数来确定，其中实际间隔间隔在标称间隔上变化，在与该间隔相当但通常小于该间隔的范围内。 伪随机阵列可以通过纹理化处理形成，其包括将聚焦的激光束引导到接触区上。 盘旋转以相对于激光器保持恒定的圆周速度，并且还被径向平移以提供期望的径向间距。 激光器以连续波模式操作，激光和光盘之间的声光调制器被操作以在连续激光曝光之间的时间间隔中提供伪随机方差。

公开(公告)号：US06403170B2

公开(公告)日：2002-06-11

申请号：US09780270

申请日：2001-02-09

申请人： David S. Kuo ,  Li-Ping Wang ,  Wei H. Yao

发明人： David S. Kuo ,  Li-Ping Wang ,  Wei H. Yao

IPC分类号： G11B572

CPC分类号： G11B5/7315 ,  G11B5/74 ,  G11B5/82 ,  G11B23/0021 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24802

摘要： A magnetic data storage medium includes a dedicated transducing head contact zone for engaging an air bearing slider, primarily when the disk is stationary and also during disk accelerations and decelerations. The contact zone has a dual baseline texture, formed by first creating a recessed region within the transducing head contact zone, and then by forming multiple nodules or other texturing features within the recessed region. The texturing features project upwardly from a recessed surface of the recessed region, and also project above an upper surface of the disk by an amount less than the texturing feature height. Consequently, the texturing features are large enough to counteract stiction due to liquid lubricant meniscus formation, yet also have heights sufficiently low relative to the upper surface to allow reduced transducer flying heights. According to a preferred texturing process, the recessed region consists of multiple individual recesses produced by applying a carbon layer to the disk, then forming cavities by selective laser ablation of the carbon layer.

摘要翻译： 磁数据存储介质包括用于接合空气轴承滑块的专用换能头接触区，主要是当盘静止时以及在盘的加速和减速期间。 接触区域具有双基线纹理，首先在传感头接触区域内形成凹陷区域，然后通过在凹陷区域内形成多个结节或其它纹理特征而形成。 纹理特征从凹陷区域的凹陷表面向上突出，并且还以小于纹理特征高度的量突出在盘的上表面上方。 因此，纹理特征足够大以抵消由于液体润滑剂弯液面形成导致的静摩擦，而且还具有相对于上表面足够低的高度，以允许减小的换能器飞行高度。 根据优选的纹理化工艺，凹陷区域由通过将碳层施加到盘而产生的多个单独凹槽，然后通过碳层的选择性激光烧蚀形成空腔。

公开(公告)号：US06187413B1

公开(公告)日：2001-02-13

申请号：US09205927

申请日：1998-12-04

申请人： David S. Kuo ,  Li-Ping Wang ,  Wei H. Yao

发明人： David S. Kuo ,  Li-Ping Wang ,  Wei H. Yao

IPC分类号： G11B582

CPC分类号： G11B5/7315 ,  G11B5/74 ,  G11B5/82 ,  G11B23/0021 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24802

摘要： A magnetic data storage medium includes a dedicated transducing head contact zone for engaging an air bearing slider, primarily when the disk is stationary and also during disk accelerations and decelerations. The contact zone has a dual baseline texture, formed by first creating a recessed region within the transducing head contact zone, and then by forming multiple nodules or other texturing features within the recessed region. The texturing features project upwardly from a recessed surface of the recessed region, and also project above an upper surface of the disk by an amount less than the texturing feature height. Consequently, the texturing features are large enough to counteract stiction due to liquid lubricant meniscus formation, yet also have heights sufficiently low relative to the upper surface to allow reduced transducer flying heights. According to a preferred texturing process, the recessed region consists of multiple individual recesses produced by applying a carbon layer to the disk, then forming cavities by selective laser ablation of the carbon layer.

摘要翻译： 磁数据存储介质包括用于接合空气轴承滑块的专用换能头接触区，主要是当盘静止时以及在盘的加速和减速期间。 接触区域具有双基线纹理，首先在传感头接触区域内形成凹陷区域，然后通过在凹陷区域内形成多个结节或其它纹理特征而形成。 纹理特征从凹陷区域的凹陷表面向上突出，并且还以小于纹理特征高度的量突出在盘的上表面上方。 因此，纹理特征足够大以抵消由于液体润滑剂弯液面形成导致的静摩擦，而且还具有相对于上表面足够低的高度，以允许减小的换能器飞行高度。 根据优选的纹理化工艺，凹陷区域由通过将碳层施加到盘而产生的多个单独凹槽，然后通过碳层的选择性激光烧蚀形成空腔。

公开(公告)号：US09330885B2

公开(公告)日：2016-05-03

申请号：US13174132

申请日：2011-06-30

申请人： Michael R. Feldbaum ,  Justin Jia-Jen Hwu ,  David S. Kuo ,  Gennady Gauzner ,  Li-Ping Wang

发明人： Michael R. Feldbaum ,  Justin Jia-Jen Hwu ,  David S. Kuo ,  Gennady Gauzner ,  Li-Ping Wang

IPC分类号： B44C1/22 ,  C23F1/00 ,  C03C15/00 ,  C03C25/68 ,  H01L21/302 ,  H01L21/461 ,  H01J37/30 ,  H01J37/305

CPC分类号： H01J37/30 ,  H01J37/3053 ,  H01J37/3056 ,  H01J2237/2007 ,  H01J2237/31749

摘要： The embodiments disclose a method of stack patterning, including loading a stack into a stationary stack stage, rotating one or more ion beam grid assemblies substantially concentrically aligned with the stationary stack stage to etch the stack and controlling the operation of the one or more ion beam grid assemblies to achieve substantial axial uniformity of the etched stack.

摘要翻译： 实施例公开了一种堆叠图案化的方法，包括将堆叠装载到固定堆叠台中，使基本上与固定堆叠台同心对准的一个或多个离子束栅格组件旋转，以蚀刻堆叠并控制一个或多个离子束 栅格组件以实现蚀刻堆叠的显着的轴向均匀性。

公开(公告)号：US08900655B2

公开(公告)日：2014-12-02

申请号：US11542129

申请日：2006-10-04

申请人： Bing K. Yen ,  David S. Kuo ,  Dieter K. Weller ,  Kim Y. Lee ,  Koichi Wago

发明人： Bing K. Yen ,  David S. Kuo ,  Dieter K. Weller ,  Kim Y. Lee ,  Koichi Wago

IPC分类号： B05D5/12 ,  G11B5/73 ,  G11B5/65 ,  G11B5/855

CPC分类号： G11B5/732 ,  G11B5/656 ,  G11B5/7325 ,  G11B5/855

摘要： A method of fabricating a patterned perpendicular magnetic recording medium comprises steps of: (a) providing a layer stack including a magnetically soft underlayer (“SUL”) and an overlying non-magnetic interlayer; (b) forming a masking layer on the non-magnetic interlayer; (c) forming a resist layer on the masking layer; (d) forming a pattern of recesses extending through the resist layer and exposing spaced apart surface portions of the masking layer; (e) extending the pattern of recesses through the masking layer to expose spaced apart surface portions of the interlayer; and (f) at least partially filling the pattern of recesses with a magnetically hard material to form a perpendicular magnetic recording layer.

摘要翻译： 制造图案化的垂直磁记录介质的方法包括以下步骤：（a）提供包括磁软底层（“SUL”）和上覆非磁性中间层的层堆叠; （b）在非磁性中间层上形成掩模层; （c）在掩模层上形成抗蚀剂层; （d）形成延伸穿过抗蚀剂层并露出掩模层的间隔开的表面部分的凹陷图案; （e）将凹槽的图案延伸穿过掩模层以暴露中间层的间隔开的表面部分; 和（f）至少部分地用磁性硬的材料填充凹槽的图案以形成垂直的磁记录层。