公开(公告)号：US08014104B2

公开(公告)日：2011-09-06

申请号：US11726156

申请日：2007-03-21

Applicant: Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

Inventor： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

IPC: G11B5/255 ,  G11B5/72

CPC classification number: G11B5/72 ,  G11B5/3106 ,  G11B5/3163 ,  G11B5/8408 ,  Y10T428/1164

Abstract: A protective bilayer on a magnetic read/write head or magnetic disk is formed as an adhesion enhancing and corrosion resistant underlayer and a protective diamond-like carbon (DLC) overlayer. The underlayer is a transition metal oxynitride, having the general formula MeOxNy, where Me represents a single element or an alloy of the following transition metal elements: Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W, here x can be within the range between 0 and 3 and y is in the range between approximately 0 and 2. Adjusting the values of x and y contributes to such qualities of the protective bilayer as stress compensation, chemical and mechanical stability and low electrical conductivity. Methods of forming the adhesion layer, include reactive ion sputtering, plasma assisted chemical vapor deposition, pulsed laser deposition and plasma immersion ion implantation.

Abstract translation: 形成磁性读/写磁头或磁盘上的保护性双层作为粘合增强和耐腐蚀的底层和保护性金刚石碳（DLC）覆盖层。 底层是具有通式MeOxNy的过渡金属氧氮化物，其中Me表示以下过渡金属元素的单一元素或合金：Ti，Zr，Hf，V，Nb，Ta，Cr，Mo和W，这里 x可以在0和3之间，y在大约0和2之间的范围内。调整x和y的值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。 形成粘合层的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：US07957104B2

公开(公告)日：2011-06-07

申请号：US11692133

申请日：2007-03-27

Applicant: Yen Fu ,  Ellis T. Cha ,  Chao-Hui Yang

Inventor： Yen Fu ,  Ellis T. Cha ,  Chao-Hui Yang

IPC: G11B5/56

CPC classification number: G11B5/4833 ,  G11B5/4873

Abstract: A flexure with improved temperature sensitivity is disclosed. An embodiment of the present invention includes a bi-layered flexure that raises or lowers a read/write element a distance that is approximately equal to the distance of protrusion and retraction at varying temperatures.

Abstract translation: 公开了具有改善的温度灵敏度的挠曲。 本发明的实施例包括双层弯曲，其使读/写元件的距离大大等于在变化的温度下的突出和缩回的距离。

公开(公告)号：US07907368B2

公开(公告)日：2011-03-15

申请号：US11691437

申请日：2007-03-26

Applicant: Qinghua Zeng ,  Yen Fu ,  Li-Yan Zhu ,  Chao-Hui Yang ,  Ellis T. Cha

Inventor： Qinghua Zeng ,  Yen Fu ,  Li-Yan Zhu ,  Chao-Hui Yang ,  Ellis T. Cha

IPC: G11B5/55

CPC classification number: G11B5/4826 ,  Y10T29/49826

Abstract: In a balanced head gimbal assembly for improved seeking performance, a slider having a magnetic head with a set of read elements to read data and a set of write elements to write data, an air-bearing surface, and a non-air-bearing surface is coupled to a suspension. The suspension includes a loadbeam, a flexure, and a balancing weight. The loadbeam is coupled to an actuator arm. The flexure, coupled to the loadbeam, has a window through which a dimple, coupled to the loadbeam, contacts a dimple contact point. The balancing weight, coupled to the flexure, has a configuration which permits alignment of a center of mass of the head gimbal assembly with the dimple contact point.

Abstract translation: 在用于改善寻求性能的平衡头万向架组件中，具有磁头的滑块具有一组用于读取数据的读取元件和一组写入元件以写入数据，空气轴承表面和非空气轴承表面 耦合到悬架。 悬架包括载重梁，挠性件和平衡重物。 负载梁耦合到致动器臂。 耦合到负载束的挠曲件具有窗口，通过该窗口，耦合到负载束的凹部接触凹坑接触点。 耦合到挠曲件的平衡重具有允许头部万向架组件的质心与凹坑接触点对准的构造。

公开(公告)号：US20100307911A1

公开(公告)日：2010-12-09

申请号：US12804935

申请日：2010-08-02

Applicant: Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

Inventor： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

IPC: G11B5/127 ,  C23C14/46 ,  B01J19/12

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

Abstract: 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.

Abstract translation: 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：US07837885B2

公开(公告)日：2010-11-23

申请号：US11594343

申请日：2006-11-07

Applicant: Ellis T. Cha ,  Zhu Feng ,  Xinjiang Shen ,  Sindy Yeung

Inventor： Ellis T. Cha ,  Zhu Feng ,  Xinjiang Shen ,  Sindy Yeung

IPC: G11B5/127

CPC classification number: G11B5/6082 ,  G11B5/40 ,  G11B5/6064 ,  Y10T29/49041

Abstract: An embodiment of the present invention is an ABS design with a pitch ladder feature. This embodiment has an air flow squeezing channel which consists of one airflow blocker and three etching steps. The airflow blocker can be used to limit the incoming air flow from the leading edge of the ABS. Additionally, the embodiment contains an air channel that reduces altitude sensitivity by channeling air at the inner diameter into a sub-ambient pressure cavity.

Abstract translation: 本发明的实施例是具有螺距梯特征的ABS设计。 该实施例具有由一个气流阻塞器和三个蚀刻步骤组成的气流挤压通道。 气流阻塞器可用于限制从ABS的前缘进入的空气流。 此外，该实施例包含通过将内径处的空气引导到次环境压力腔中而降低高度感度的空气通道。

公开(公告)号：US07782569B2

公开(公告)日：2010-08-24

申请号：US11655025

申请日：2007-01-18

Applicant: Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

Inventor： Shide Cheng ,  Zhu Feng ,  Ellis T. Cha

IPC: G11B5/60 ,  G11B5/187

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

Abstract: 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.

Abstract translation: 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：US07679857B2

公开(公告)日：2010-03-16

申请号：US12199761

申请日：2008-08-27

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

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

IPC: G11B5/60

CPC classification number: G11B5/581 ,  G11B5/6029 ,  G11B5/6035

Abstract: In a system and method for a non-contact measurement of the fly height of a slider above a magnetic data storage medium using electrostatic force, a slider with a read/write head flies over a magnetic data storage medium. A series of distinct voltages are applied between the slider and the magnetic data storage medium, and corresponding read-back signals are recorded. Using the recorded read-back signals, coefficients for an empirical curve-fit equation are calculated. The coefficients are normalized and converted into a fly height measurement.

Abstract translation: 在使用静电力对磁性数据存储介质上方的滑块的飞行高度进行非接触式测量的系统和方法中，具有读/写头的滑块飞越磁数据存储介质。 在滑块和磁数据存储介质之间施加一系列不同的电压，并记录相应的读回信号。 使用记录的回读信号，计算经验曲线拟合方程的系数。 系数被归一化并转换成飞行高度测量。

公开(公告)号：US20080316637A1

公开(公告)日：2008-12-25

申请号：US12199761

申请日：2008-08-27

Applicant: LI-YAN ZHU ,  CHAO-HUI YANG ,  YEN FU ,  ELLIS T. CHA

Inventor： LI-YAN ZHU ,  CHAO-HUI YANG ,  YEN FU ,  ELLIS T. CHA

IPC: G11B21/02

CPC classification number: G11B5/581 ,  G11B5/6029 ,  G11B5/6035

Abstract: In a system and method for a non-contact measurement of the fly height of a slider above a magnetic data storage medium using electrostatic force, a slider with a read/write head flies over a magnetic data storage medium. A series of distinct voltages are applied between the slider and the magnetic data storage medium, and corresponding read-back signals are recorded. Using the recorded read-back signals, coefficients for an empirical curve-fit equation are calculated. The coefficients are normalized and converted into a fly height measurement.

Abstract translation: 在使用静电力对磁性数据存储介质上方的滑块的飞行高度进行非接触式测量的系统和方法中，具有读/写头的滑块飞越磁数据存储介质。 在滑块和磁数据存储介质之间施加一系列不同的电压，并记录相应的读回信号。 使用记录的回读信号，计算经验曲线拟合方程的系数。 系数被归一化并转换成飞行高度测量。

公开(公告)号：US20080186633A1

公开(公告)日：2008-08-07

申请号：US11704017

申请日：2007-02-07

Applicant: Manuel A. Hernandez ,  Yen Fu ,  Ellis T. Cha

Inventor： Manuel A. Hernandez ,  Yen Fu ,  Ellis T. Cha

IPC: G11B5/56

CPC classification number: G11B5/455

Abstract: In a method and apparatus for testing a head-gimbal assembly (HGA), a HGA is placed in contact with force transducers mounted on a rotational stage. The force transducers are adjusted to position the transducers around a rotational center of the rotational stage. The rotational stage is rotated, and the torque and variations in torque exerted by the HGA on the force transducers during rotation are measured.

Abstract translation: 在用于测试头部万向节组件（HGA）的方法和装置中，HGA被放置成与安装在旋转台上的力换能器接触。 调节力传感器以使换能器绕旋转台的旋转中心定位。 旋转台被旋转，并且测量在旋转期间由HGA施加在力传感器上的扭矩和扭矩的变化。

公开(公告)号：US20080151430A1

公开(公告)日：2008-06-26

申请号：US11644309

申请日：2006-12-21

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

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

IPC: G11B5/48

CPC classification number: G11B5/4826 ,  G11B5/455 ,  G11B5/6011

Abstract: 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.

Abstract translation: 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。