公开(公告)号：US06529342B1

公开(公告)日：2003-03-04

申请号：US09258091

申请日：1999-02-24

申请人： Zhu Feng ,  Chung Y. Shih ,  Chiu-Shing F. Poon ,  Vidyadhara K. Gubbi

发明人： Zhu Feng ,  Chung Y. Shih ,  Chiu-Shing F. Poon ,  Vidyadhara K. Gubbi

IPC分类号： G11B2102

CPC分类号： G11B5/6017

摘要： A method for controlling flying height at the interface of a magnetic head and a magnetic storage medium is described. The flying height is controlled by applying a voltage between head and medium. This controls the vertical movement of the head, and thus, may increase or decrease the flying height. For example, the flying height may be changed with surface texture to achieve high writing/reading density, where the flatness of the medium is high. Also, the contact between the head and medium may be limited where the texture includes projections such as laser bumps.

摘要翻译： 描述了一种用于控制磁头和磁存储介质的界面处的飞行高度的方法。 飞行高度通过在头部和中间之间施加电压来控制。 这可以控制头部的垂直运动，从而可以增加或减少飞行高度。 例如，飞行高度可以用表面纹理改变，以实现高写入/读取密度，其中介质的平坦度高。 此外，当纹理包括诸如激光凸块的突起时，头和介质之间的接触可能受到限制。

公开(公告)号：US08274751B2

公开(公告)日：2012-09-25

申请号：US13065941

申请日：2011-04-01

申请人： Zhu Feng ,  Xiaofeng Zhang ,  Ellis T. Cha

发明人： Zhu Feng ,  Xiaofeng Zhang ,  Ellis T. Cha

IPC分类号： G11B21/02 ,  G11B27/36 ,  G01R27/26

CPC分类号： G11B5/455 ,  G11B5/40 ,  G11B5/4555 ,  G11B5/6017 ,  G11B5/6058

摘要： A system and method for measuring the modulation between a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A magnetic read/write head is positioned above a magnetic storage medium at a given flying height. The magnetic read/write head reads a signal from the magnetic storage medium. A tester measures an alternating electric current between the magnetic read/write head through the slider and the magnetic storage medium. A computer may then calculate the modulation by the magnetic read/write head based on the alternating electric current. A DC voltage to the head may be applied to lower the flying height of the magnetic head.

公开(公告)号：US20110299191A1

公开(公告)日：2011-12-08

申请号：US13065941

申请日：2011-04-01

申请人： Zhu Feng ,  Xiaofeng Zhang ,  Ellis T. Cha

发明人： Zhu Feng ,  Xiaofeng Zhang ,  Ellis T. Cha

IPC分类号： G11B21/02

CPC分类号： G11B5/455 ,  G11B5/40 ,  G11B5/4555 ,  G11B5/6017 ,  G11B5/6058

摘要： A system and method for measuring the modulation between a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A magnetic read/write head is positioned above a magnetic storage medium at a given flying height. The magnetic read/write head reads a signal from the magnetic storage medium. A tester measures an alternating electric current between the magnetic read/write head through the slider and the magnetic storage medium. A computer may then calculate the modulation by the magnetic read/write head based on the alternating electric current. A DC voltage to the head may be applied to lower the flying height of the magnetic head.

摘要翻译： 公开了一种用于测量诸如磁盘的磁头和磁存储介质之间的调制的系统和方法。 在给定的飞行高度处，磁读/写头位于磁存储介质上方。 磁读/写头读取来自磁存储介质的信号。 测试仪测量通过滑动器的磁读/写磁头与磁存储介质之间的交流电流。 计算机然后可以基于交流电流计算磁读/写头的调制。 可以施加到头部的DC电压以降低磁头的飞行高度。

公开(公告)号：US08009387B2

公开(公告)日：2011-08-30

申请号：US12804935

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 ,  B01J19/12 ,  B05D5/12 ,  C23C16/00 ,  H04R31/00

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：US07978436B2

公开(公告)日：2011-07-12

申请号：US11758603

申请日：2007-06-05

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

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

IPC分类号： G11B5/60 ,  G11B21/21 ,  G11B17/32

CPC分类号： G11B5/6082 ,  G11B5/6064

摘要： A method and apparatus for improving flying height stability in a small form factor hard disk drive that typically moves at lower speeds is achieved by a slider having an ABS with an air channel and pocket. The air channel and pocket are configured to increase the amount of aerodynamic lift provided by normally smaller amounts of intake air at the inner diameter of the rotating disk and, thereby, to achieve a desired flying height profile.

摘要翻译： 一种用于改善通常以较低速度移动的小尺寸硬盘驱动器中的飞行高度稳定性的方法和装置通过具有带有空气通道和袋口的ABS的滑块来实现。 空气通道和口袋构造成增加在旋转盘的内径处通常较小量的进气提供的空气动力升高量，从而实现期望的飞行高度分布。

公开(公告)号：US07460336B1

公开(公告)日：2008-12-02

申请号：US09566685

申请日：2000-05-08

申请人： Ellis T. Cha ,  Zhu Feng

发明人： Ellis T. Cha ,  Zhu Feng

IPC分类号： G11B17/32

CPC分类号： G11B5/6082 ,  G11B5/6011

摘要： An improved slider design with stiction reduction pads is presented along with a method of making the same. In one embodiment, the bases for the stiction reduction pads are made first during an etching process for the air bearing surfaces, then the stiction reduction pads are made higher so as to prevent unwanted contacted between the air bearing surface and the disc as well as reducing meniscal forces that can be caused by a lubricant on the disc.

摘要翻译： 提出了一种具有静电抑制垫的改进的滑块设计及其制造方法。 在一个实施例中，在用于空气轴承表面的蚀刻工艺期间首先制造用于静电抑制垫的基座，然后使静止减小垫更高，以防止空气轴承表面和盘之间的不必要的接触以及减小 可能由圆盘上的润滑剂引起的半月板力。

公开(公告)号：US20080231992A1

公开(公告)日：2008-09-25

申请号：US11726156

申请日：2007-03-21

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

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

IPC分类号： G11B21/00 ,  B05D5/12

CPC分类号： G11B5/72 ,  G11B5/3106 ,  G11B5/3163 ,  G11B5/8408 ,  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 and corrosion resistant underlayer and a protective diamond-like carbon (DLC) overlayer. The underlayer is formed of transition metal oxynitride, having the general formula MeOxNy, where Me represents a single element or an alloy formed with two or more 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 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 adhesion layer 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和耐腐蚀的底层和保护性金刚石碳（DLC）覆盖层。 底层由过渡金属氧氮化物形成，具有通式为M 1 O x N y，其中Me表示单一元素或形成有两个或更多个以下转变的合金 金属元素：Ti，Zr，Hf，V，Nb，Ta，Cr，Mo和W，这里x可以在0和3之间的范围内，y在约0和2之间的范围内通过调整x的值 并且y的粘附底层有助于保护双层的质量，如应力补偿，化学和机械稳定性以及低导电性。 提供形成粘合层的各种方法，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：US20080187781A1

公开(公告)日：2008-08-07

申请号：US11702247

申请日：2007-02-05

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

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

IPC分类号： C23C16/34

CPC分类号： C23C14/024 ,  C23C14/0036 ,  C23C14/0605 ,  C23C14/0676 ,  G11B5/3106 ,  G11B5/40 ,  G11B5/72 ,  G11B5/8408 ,  Y10T428/115

摘要： A method for forming a protective bilayer on a substrate that is a magnetic read/write head or a magnetic recording medium. The bilayer is formed as an adhesion enhancing and corrosion resistant underlayer and a protective diamond-like carbon (DLC) overlayer. The underlayer is formed of silicon oxynitride, having the general formula SiOxNy, where x can be within the range between 0.02 and 2.0 and y is in the range between approximately 0.01 and 1.5. By adjusting the values of x and y the underlayer contributes to such qualities as strong chemical bonding between the substrate and the DLC, wear and corrosion resistance, chemical and mechanical stability and low electrical conductivity. The underlayer may be formed by various methods such as reactive ion sputtering, plasma assisted chemical vapor deposition, reactive pulsed laser deposition, plasma surface treatment and plasma immersion ion implantation.

摘要翻译： 一种在作为磁读/写头或磁记录介质的基片上形成保护性双层的方法。 双层形成为粘合增强和耐腐蚀的底层和保护性金刚石碳（DLC）覆盖层。 底层由氮氧化硅形成，具有通式SiO x N y Y y，其中x可以在0.02和2.0之间的范围内，y在大约 0.01和1.5。 通过调整x和y的值，底层有助于衬底与DLC之间的强化学键合，耐磨损和耐腐蚀性，化学和机械稳定性以及低导电性等特性。 底层可以通过诸如反应离子溅射，等离子体辅助化学气相沉积，反应脉冲激光沉积，等离子体表面处理和等离子体浸入离子注入等各种方法形成。

公开(公告)号：US06313647B1

公开(公告)日：2001-11-06

申请号：US09436586

申请日：1999-11-09

申请人： Zhu Feng ,  Chiu-Shing Frank Poon ,  Tan Guo Liu ,  Vidya Gubbi ,  Chung Yuang Shih

发明人： Zhu Feng ,  Chiu-Shing Frank Poon ,  Tan Guo Liu ,  Vidya Gubbi ,  Chung Yuang Shih

IPC分类号： G01R2926

CPC分类号： G01R27/02 ,  G11B5/012 ,  G11B5/488 ,  G11B33/10

摘要： Disclosed is anew technique for measuring the resistivity of ultra-thin carbon films (less than 200 Å). The technique involves using a probe with very smooth surface, a thin layer lubricant (20-30Å)that enables the intimate and stable electrical contact between probe and the thin film, and measurement of I-V curve to determine resistance. Resistivity measurements were conducted on carbon films doped with hydrogen and nitrogen at different mixture ratios and different thicknesses, and the results were compared with those obtained on a commercially available machine that uses a mercury probe. The advantages of the present technique include simple in use, less expensive and quick measurements with reasonably good accuracy.

摘要翻译： 公开了用于测量超薄碳膜（小于200埃）的电阻率的新技术。 该技术涉及使用具有非常光滑表面的探针，薄层润滑剂（20-30Å），使得探针和薄膜之间的紧密和稳定的电接触，以及测量I-V曲线以确定电阻。 对以不同混合比和不同厚度掺杂氢和氮的碳膜进行电阻率测量，并将结果与​​使用汞探针的市售机器上获得的结果进行比较。 本技术的优点包括使用简单，成本低廉且测量精度高，测量精度高。