公开(公告)号：US20100310904A1

公开(公告)日：2010-12-09

申请号：US12804946

申请日：2010-08-02

申请人： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

发明人： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

IPC分类号： G11B5/72

CPC分类号： G11B5/3106 ,  C23C14/024 ,  C23C14/0605 ,  C23C14/0676 ,  G11B5/3163 ,  G11B5/72 ,  G11B5/8408 ,  G11B23/0064 ,  Y10T29/49043 ,  Y10T428/1164

摘要： A magnetic disk is protected by a bilayer. The bilayer is formed as an adhesion enhancing underlayer and a protective diamond-like carbon (DLC) overlayer. The underlayer is formed of an aluminum or alloyed aluminum oxynitride, having the general formula AlOxNy or MezAlOxNy where Mez symbolizes Tiz, Siz or Crz and where x, y and z can be varied within the formation process. By adjusting the values of x and y the adhesion underlayer contributes to such qualities of the protective bilayer as stress compensation, chemical and mechanical stability and low electrical conductivity. Various methods of forming the underlayer are provided, including reactive ion sputtering, plasma assisted chemical vapor deposition, pulsed laser deposition and plasma immersion ion implantation.

摘要翻译： 磁盘由双层保护。 双层形成为粘合增强底层和保护性金刚石碳（DLC）覆盖层。 底层由具有通式AlOxNy或MezAlOxNy的铝或合金化氧化铝铝形成，其中Mez表示Tiz，Siz或Crz，其中x，y和z可以在形成过程中变化。 通过调整x和y的值，粘合剂底层有助于保护层的质量，如应力补偿，化学和机械稳定性以及低导电性。 提供了形成底层的各种方法，包括反应离子溅射，等离子体辅助化学气相沉积，脉冲激光沉积和等离子体浸入离子注入。

公开(公告)号：US20080176108A1

公开(公告)日：2008-07-24

申请号：US11655025

申请日：2007-01-18

申请人： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

发明人： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

IPC分类号： G11B5/40 ,  B05D5/00 ,  C23C14/14 ,  C23C14/22 ,  G11B5/127

CPC分类号： G11B5/3106 ,  C23C14/024 ,  C23C14/0605 ,  C23C14/0676 ,  G11B5/3163 ,  G11B5/72 ,  G11B5/8408 ,  G11B23/0064 ,  Y10T29/49043 ,  Y10T428/1164

摘要： A method for forming a protective bilayer on a magnetic read/write head or magnetic disk. The bilayer is formed as an adhesion enhancing underlayer and a protective diamond-like carbon (DLC) overlayer. The underlayer is formed of an aluminum or alloyed aluminum oxynitride, having the general formula AlOxNy or MezAlOxNy where Mez symbolizes Tiz, Siz or Crz and where x, y and z can be varied within the formation process. By adjusting the values of x and y the adhesion underlayer contributes to such qualities of the protective bilayer as stress compensation, chemical and mechanical stability and low electrical conductivity. Various methods of forming the underlayer are provided, including reactive ion sputtering, plasma assisted chemical vapor deposition, pulsed laser deposition and plasma immersion ion implantation.

摘要翻译： 一种在磁读/写磁头或磁盘上形成保护双层的方法。 双层形成为粘合增强底层和保护性金刚石碳（DLC）覆盖层。 底层由铝或合金化的氮氧化铝形成，其具有通式为Al x Si x N y或Y z O 2， 其中Me z z表示Ti z z，Si z z或Cr z z， SUB>，并且其中x，y和z可以在形成过程中变化。 通过调整x和y的值，粘合剂底层有助于保护层的质量，如应力补偿，化学和机械稳定性以及低导电性。 提供了形成底层的各种方法，包括反应离子溅射，等离子体辅助化学气相沉积，脉冲激光沉积和等离子体浸入离子注入。

公开(公告)号：US07085083B2

公开(公告)日：2006-08-01

申请号：US10728450

申请日：2003-12-05

申请人： Li-Yan Zhu ,  Chao-Hui Yang ,  Xiaofeng Zhang ,  Yen Fu ,  Ellis T. Cha

发明人： Li-Yan Zhu ,  Chao-Hui Yang ,  Xiaofeng Zhang ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G11B27/36

CPC分类号： G11B5/455 ,  G11B5/54

摘要： A system and method for testing the stroke and frequency response of a micro-actuator is disclosed. A dynamic parameter tester writes two concentric tracks on a noise free portion of a magnetic storage medium. A magnetic read/write head and a micro-actuator is positioned between the two concentric tracks. An initial oscillating voltage is applied at a first frequency to the micro-actuator while reading back a signal from the two concentric tracks. A stroke characteristic of the micro-actuator is calculated based in part on the read-back signal. The initial oscillating voltage is determined from previous tests. The first stroke characteristic of the micro-actuator is based on a time-averaged amplitude of the first signal. The two concentric tracks are written at a pre-determined pitch.

摘要翻译： 公开了一种用于测试微致动器的行程和频率响应的系统和方法。 动态参数测试仪在磁存储介质的无噪声部分上写入两个同心轨道。 磁读/写头和微致动器位于两个同心轨道之间。 初始振荡电压以第一频率施加到微致动器，同时从两个同心轨道读回信号。 部分地基于回读信号计算微致动器的行程特性。 初始振荡电压由先前的测试确定。 微致动器的第一冲程特性是基于第一信号的时间平均振幅。 两个同心轨道以预定间距进行写入。

公开(公告)号：US07046473B2

公开(公告)日：2006-05-16

申请号：US10941420

申请日：2004-09-14

申请人： Yen Fu ,  Ellis T. Cha ,  Zhu Feng

发明人： Yen Fu ,  Ellis T. Cha ,  Zhu Feng

IPC分类号： G11B21/02

CPC分类号： G11B5/6005 ,  G11B5/6064 ,  G11B5/607

摘要： A system and method for adjusting the flying height of a magnetic head above a magnetic storage medium, such as a disk, is disclosed. A charging surface of the slider, separate from the read/write head, allows a charging electrical interconnect to apply an electrical charge to the slider. By acting as a quasi-parallel capacitor, the amount of spacing in the head-disk interface may be increased or decreased based on the amount of voltage applied. The slider may be electrically isolated from the suspension. Simultaneously, a heating element deforms the slider to further adjust the spacing between the read/write head and the disk surface. A feedback control system may monitor and control the head-disk spacing by measuring a temperature or other environmental conditions surrounding the slider and disk.

摘要翻译： 公开了一种用于调节诸如磁盘的磁存储介质之上的磁头的飞行高度的系统和方法。 与读/写头分开的滑块的充电表面允许充电电互连以向滑块施加电荷。 通过作为准并联电容器，可以基于施加的电压量来增加或减少磁头 - 磁盘接口中的间隔量。 滑块可以与悬架电隔离。 同时，加热元件使滑动件变形，以进一步调节读/写头与盘表面之间的间隔。 反馈控制系统可以通过测量滑块和盘周围的温度或其他环境条件来监控和控制磁头盘间距。

公开(公告)号：US08045295B2

公开(公告)日：2011-10-25

申请号：US12145464

申请日：2008-06-24

申请人： Yen Fu ,  Ellis T. Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

发明人： Yen Fu ,  Ellis T. Cha ,  Po-Kang Wang ,  Hong Tian ,  Manuel Hernandez ,  Yaw-Shing Tang ,  Ben Hu

IPC分类号： G11B5/55

CPC分类号： H05K3/3442 ,  B24B37/00 ,  B24D18/00 ,  G11B5/4853 ,  H05K1/0215 ,  H05K2201/10727 ,  Y02P70/613

摘要： Method and apparatus are presented for electrically coupling a slider to ground. In one embodiment, a bonding pad is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pad is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor provided on the suspension (e.g., a trace, a flex circuit, etc.) may be electrically coupled to the separate bonding pad via gold ball bonding. The conductor is also coupled to ground in the hard-disk drive device (e.g., via the preamplifier). The use of the separated bonding pad and trace may negate the need to use a conductive adhesive to electrically ground the slider via its attachment to the tongue of a slider.

摘要翻译： 呈现用于将滑块电耦合到地面的方法和装置。 在一个实施例中，接合焊盘设置在与用于读/写信号的接合焊盘分开的滑块体的一侧上。 该单独的接合焊盘在滑块体内电耦合到要耦合到地面的部件。 设置在悬架上的单独的导体（例如，迹线，柔性电路等）可以通过金球接合电耦合到单独的接合焊盘。 导体也耦合到硬盘驱动装置中的接地（例如，经由前置放大器）。 使用分离的接合焊盘和迹线可能会使得不需要使用导电粘合剂来将滑块经由其附接件电连接到滑块的舌部。

公开(公告)号：US08018682B2

公开(公告)日：2011-09-13

申请号：US12804946

申请日：2010-08-02

申请人： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

发明人： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

IPC分类号： G11B5/82

CPC分类号： G11B5/3106 ,  C23C14/024 ,  C23C14/0605 ,  C23C14/0676 ,  G11B5/3163 ,  G11B5/72 ,  G11B5/8408 ,  G11B23/0064 ,  Y10T29/49043 ,  Y10T428/1164

摘要： A magnetic disk is protected by a bilayer. The bilayer is formed as an adhesion enhancing underlayer and a protective diamond-like carbon (DLC) overlayer. The underlayer is formed of an aluminum or alloyed aluminum oxynitride, having the general formula AlOxNy or MezAlOxNy where Mez symbolizes Tiz, Siz or Crz and where x, y and z can be varied within the formation process. By adjusting the values of x and y the adhesion underlayer contributes to such qualities of the protective bilayer as stress compensation, chemical and mechanical stability and low electrical conductivity. Various methods of forming the underlayer are provided, including reactive ion sputtering, plasma assisted chemical vapor deposition, pulsed laser deposition and plasma immersion ion implantation.

摘要翻译： 磁盘由双层保护。 双层形成为粘合增强底层和保护性金刚石碳（DLC）覆盖层。 底层由具有通式AlOxNy或MezAlOxNy的铝或合金化氧化铝铝形成，其中Mez表示Tiz，Siz或Crz，其中x，y和z可以在形成过程中变化。 通过调整x和y的值，粘合剂底层有助于保护层的质量，如应力补偿，化学和机械稳定性以及低导电性。 提供了形成底层的各种方法，包括反应离子溅射，等离子体辅助化学气相沉积，脉冲激光沉积和等离子体浸入离子注入。

公开(公告)号：US07885040B2

公开(公告)日：2011-02-08

申请号：US11774512

申请日：2007-07-06

申请人： Chao-Hui Yang ,  Qinghua Zeng ,  Yen Fu ,  Ellis T. Cha

发明人： Chao-Hui Yang ,  Qinghua Zeng ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G11B5/55

CPC分类号： G11B5/4826

摘要： An apparatus with a head gimbal assembly designed to reduce movement and rotation of components of the head gimbal assembly structure is disclosed. One embodiment head gimbal assembly may comprise a flexure including a ramp limiter, a suspension assembly further comprising a suspension tongue, a slider further comprising a magnetic head; and a load beam further comprising a lift tab; and a ramp further comprising a step to engage and support the ramp limiter and support and constrain the movement of the slider. In certain embodiments, the flexure may further comprise a flexure rail located at its end to reduce movement and rotation of the suspension tongue.

摘要翻译： 公开了一种具有头部万向节组件的装置，其被设计成减小头部万向节组件结构的部件的移动和旋转。 一个实施例的头万向架组件可以包括包括斜坡限制器的挠曲件，还包括悬挂舌的悬架组件，还包括磁头的滑块; 以及进一步包括升降翼的负载梁; 以及斜坡，还包括接合和支撑斜坡限制器并支撑和限制滑动件运动的步骤。 在某些实施例中，挠曲件还可以包括位于其端部处的挠性轨道，以减少悬挂舌片的运动和旋转。

公开(公告)号：US07617737B2

公开(公告)日：2009-11-17

申请号：US11644309

申请日：2006-12-21

申请人： Li-Yan Zhu ,  Chao-Hui Yang ,  Yen Fu ,  Ellis T. Cha

发明人： Li-Yan Zhu ,  Chao-Hui Yang ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G01L1/24

CPC分类号： G11B5/4826 ,  G11B5/455 ,  G11B5/6011

摘要： In a system and method for adjusting a static torque on a slider in a head-gimbal assembly, a substantially rigid mass is placed on an air-bearing surface (ABS) of a slider. A static attitude of the slider is measured, and an adjustment location and intensity for a flexure to yield a zero slider static attitude are calculated. The flexure is adjusted based on the measurement and calculations.

摘要翻译： 在用于调节头部万向节组件中的滑块上的静态扭矩的系统和方法中，基本上刚性的质量被放置在滑块的空气轴承表面（ABS）上。 测量滑块的静态姿势，并且计算弯曲的调整位置和强度以产生零滑块静态姿态。 基于测量和计算来调整挠曲。

公开(公告)号：US06989671B2

公开(公告)日：2006-01-24

申请号：US10342780

申请日：2003-01-14

申请人： Li-Yan Zhu ,  Xiaofeng Zhang ,  Yen Fu ,  Ellis T. Cha

发明人： Li-Yan Zhu ,  Xiaofeng Zhang ,  Yen Fu ,  Ellis T. Cha

IPC分类号： G01R33/12

CPC分类号： G11B5/6005 ,  G11B5/012 ,  G11B5/40 ,  G11B5/455 ,  G11B5/5534 ,  G11B5/596 ,  G11B5/6076 ,  G11B27/36 ,  G11B2005/001 ,  G11B2220/20

摘要： A method is described for calculating head disk interference (HDI) using a dynamic parametric test. In one embodiment, HDI is calculated based on an actual and ideal sensitivity profile based on a read-back signal track profile for the slider/head.

摘要翻译： 描述了一种使用动态参数测试来计算头盘干扰（HDI）的方法。 在一个实施例中，基于用于滑块/头的回读信号轨迹轮廓，基于实际和理想灵敏度轮廓计算HDI。

公开(公告)号：US5677812A

公开(公告)日：1997-10-14

申请号：US598790

申请日：1996-01-26

申请人： Ellis T. Cha

发明人： Ellis T. Cha

IPC分类号： F16C17/00 ,  G11B5/60

CPC分类号： G11B5/6005

摘要： An air bearing slider that maintains a relatively uniform flying height during variations in air speed and the skew of the slider. The slider has a raised rail disposed along the bottom surface of the slider body that forms a cavity. The cavity is configured to produce a subambient pressure when an air flow passes across the slider. The rail possesses a plurality of air bearing surfaces and has an opening positioned along the inner side of the slider. The opening is positioned and sized to provide a variable air flow into the cavity as the skew angle between the longitudinal axis of the slider and the direction of air flow changes. In this manner, a variable subambient pressure is developed within the cavity as the slider moves radially along the surface of a disk.

摘要翻译： 空气轴承滑块，其在空气速度的变化和滑块的偏斜期间保持相对均匀的飞行高度。 滑块具有沿着滑块体的底表面设置的凸起轨道，该凸台形成空腔。 空腔被配置为当空气流穿越滑块时产生次环压。 轨道具有多个空气轴承表面，并且具有沿着滑块的内侧定位的开口。 开口的定位和尺寸设置成当滑块的纵向轴线和空气流动方向改变之间的倾斜角度时向空腔提供可变气流。 以这种方式，当滑块沿着盘的表面径向移动时，在空腔内形成可变的低于环境的压力。