公开(公告)号：US08756776B1

公开(公告)日：2014-06-24

申请号：US12579263

申请日：2009-10-14

申请人： Yih-Jen D. Chen ,  Robert J. McNab

发明人： Yih-Jen D. Chen ,  Robert J. McNab

IPC分类号： G11B5/84 ,  H01L41/22

CPC分类号： G11B5/483 ,  G11B5/4826 ,  G11B5/4873 ,  H01L41/053 ,  H01L41/0533 ,  H01L41/0986 ,  H01L41/23 ,  H01L41/25 ,  H01L41/253 ,  H01L41/338 ,  H02N1/008 ,  H02N2/22 ,  Y10T29/42 ,  Y10T29/49025 ,  Y10T29/49146 ,  Y10T29/49155

摘要： A method of manufacturing a microactuator. The method includes providing a sheet of a piezoelectric material having an electrically conductive layer on at least one side of the sheet. The method includes cutting the sheet to form a plurality of piezoelectric elements. Each of the piezoelectric elements includes a first element side with an electrically conductive layer. Each first element side includes a peripheral portion and an exposed portion interior to the peripheral portion. The method includes forming an encapsulation layer over the peripheral portion and not over the exposed portion of at least one of the sides. The encapsulation layer comprises a material of lesser electrical conductivity than the electrically conductive layer. An apparatus for manufacturing the microactuators may also be provided that includes a first fixture and first and second alignment combs.

摘要翻译： 微致动器的制造方法。 该方法包括在片材的至少一侧上提供具有导电层的压电材料片。 该方法包括切割片材以形成多个压电元件。 每个压电元件包括​​具有导电层的第一元件侧。 每个第一元件侧包括周边部分和外围部分内部的暴露部分。 该方法包括在周边部分上形成封装层，而不是在至少一个侧面的暴露部分之上。 封装层包括比导电层更小导电性的材料。 还可以提供一种用于制造微致动器的装置，其包括第一固定装置和第一和第二对准梳。

公开(公告)号：US07489464B1

公开(公告)日：2009-02-10

申请号：US11050508

申请日：2005-02-02

申请人： Robert J. McNab ,  Siri S. Weerasooriya

发明人： Robert J. McNab ,  Siri S. Weerasooriya

IPC分类号： G11B21/02

CPC分类号： G11B5/4826 ,  G11B5/5552 ,  G11B5/59633 ,  G11B5/59638

摘要： A method of servo writing a plurality of servo sectors to a disk of a disk drive to define a plurality of data tracks is disclosed. The disk drive comprises the disk, an actuator arm, a head coupled to a distal end of the actuator arm, wherein the head comprises a read element and a write element. A voice coil motor (VCM) rotates the actuator arm about a pivot to actuate the head radially over the disk, and a secondary actuator adjusts a skew angle for the head while using the write element to write the servo sectors to the disk.

摘要翻译： 公开了一种将多个伺服扇区伺服写入磁盘驱动器的盘以定义多个数据轨道的方法。 盘驱动器包括盘，致动器臂，联接到致动器臂的远端的头部，其中头部包括读取元件和写入元件。 音圈电机（VCM）使致动器臂围绕枢轴转动，以使头部径向地驱动在盘上，并且辅助致动器在使用写入元件将伺服扇区写入盘时调节头部的歪斜角度。

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：US07215514B1

公开(公告)日：2007-05-08

申请号：US10971215

申请日：2004-10-22

申请人： Lin Yang ,  Lin Mei ,  William C. Tipton, II ,  Robert J. McNab

发明人： Lin Yang ,  Lin Mei ,  William C. Tipton, II ,  Robert J. McNab

IPC分类号： G11B5/56

CPC分类号： G11B5/5552 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/596

摘要： A method of operating a disk drive including providing the disk drive. The disk drive includes a disk with data tracks and an actuator with a slider including a perpendicular magnetic write head. The write head includes leading and trailing sides defining a taper angle. The write head and the actuator define a maximum skew angle with respect to the data tracks. The maximum skew angle being greater than the taper angle. The method further includes rotating the slider during operation of the disk drive to reduce a difference between the skew and taper angles for aligning the write head with the data tracks.

摘要翻译： 一种操作包括提供磁盘驱动器的磁盘驱动器的方法。 磁盘驱动器包括具有数据磁道的磁盘和具有包括垂直磁性写入头的滑块的致动器。 写头包括限定锥角的前侧和后侧。 写头和致动器相对于数据轨道定义最大的倾斜角。 最大倾斜角大于锥角。 该方法还包括在盘驱动器的操作期间旋转滑块以减小偏斜和锥角之间的差异，以使写入头与数据轨迹对准。

公开(公告)号：US07027256B1

公开(公告)日：2006-04-11

申请号：US10377078

申请日：2003-02-28

申请人： Jai N. Subrahmanyam ,  Jack M. Chue ,  Robert J. McNab

发明人： Jai N. Subrahmanyam ,  Jack M. Chue ,  Robert J. McNab

IPC分类号： G11B5/596

CPC分类号： G11B5/59627

摘要： A magnetic disk drive having a reduction in repeatable runout (RRO) effects is disclosed. The disk drive has a head disk assembly (HDA) and a sampled servo controller. The HDA includes a rotating magnetic disk, an actuator, and a transducer head. The magnetic disk has a plurality of embedded servo sectors for storing servo information including repeatable runout (RRO) cancellation values and RRO cancellation value error correction code (ECC) data at a servo data rate. The RRO cancellation value ECC data is only for detecting and correcting errors in the RRO cancellation values. In between the embedded servo sectors are data sectors for storing user data at a user data rate that is different from the servo data rate. The actuator positions the transducer head in response to a control effort signal generated by the sampled servo controller based on the servo information.

摘要翻译： 公开了具有减少可重复跳动（RRO）效应的磁盘驱动器。 磁盘驱动器具有头盘组件（HDA）和采样伺服控制器。 HDA包括旋转磁盘，致动器和换能器头。 磁盘具有多个嵌入式伺服扇区，用于以伺服数据速率存储包括可重复跳动（RRO）抵消值和RRO抵消值纠错码（ECC）数据的伺服信息。 RRO抵消值ECC数据仅用于检测和纠正RRO抵消值中的错误。 在嵌入式伺服扇区之间是用于以与伺服数据速率不同的用户数据速率存储用户数据的数据扇区。 执行器响应于由采样的伺服控制器基于伺服信息产生的控制力信号来定位换能器头。