公开(公告)号：US20100307911A1

公开(公告)日：2010-12-09

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： G11B5/127 ,  C23C14/46 ,  B01J19/12

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：US07837885B2

公开(公告)日：2010-11-23

申请号：US11594343

申请日：2006-11-07

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： G11B5/127

CPC分类号： G11B5/6082 ,  G11B5/40 ,  G11B5/6064 ,  Y10T29/49041

摘要： 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.

摘要翻译： 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

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

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

IPC分类号： G11B5/60 ,  G11B5/187

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：US07675711B2

公开(公告)日：2010-03-09

申请号：US10434258

申请日：2003-05-07

申请人： Zhu Feng ,  Ellis Cha ,  Xiaofeng Zhang

发明人： Zhu Feng ,  Ellis Cha ,  Xiaofeng Zhang

IPC分类号： G11B5/60 ,  G11B5/82

CPC分类号： G11B5/60

摘要： A system and method for measuring and neutralizing the electrical charge at the interface of a magnetic head and a magnetic storage medium, such as a disk, is disclosed. A surface treatment material is applied to the magnetic head. The surface treatment material matches the medium surface material on the surface of the magnetic storage medium. The surface treatment material on the magnetic read/write head may be a fluorinated carbon, such as a Fomblin Z-derivative, perfluoro alkyl trichlorosilane, a FC-722, or a fluorinated polymer. The surface treatment material can be applied to the magnetic head by a vapor deposition process or by a liquid immersion process. The charge on the head-disk interface can be measured by applying varying external charges to the head while reading a signal previously written to the disk.

摘要翻译： 公开了一种用于测量和中和磁头和诸如磁盘的磁存储介质的界面处的电荷的系统和方法。 将表面处理材料施加到磁头。 表面处理材料与磁性存储介质表面上的介质表面材料相匹配。 磁读写头上的表面处理材料可以是氟化碳，如Fomblin Z衍生物，全氟烷基三氯硅烷，FC-722或氟化聚合物。 表面处理材料可以通过气相沉积法或液浸法施加到磁头上。 头磁盘接口上的电荷可以通过在读取先前写入磁盘的信号时向磁头施加变化的外部电荷来测量。

公开(公告)号：US20100039732A1

公开(公告)日：2010-02-18

申请号：US12228496

申请日：2008-08-13

申请人： Xinjiang Shen ,  Zhu Feng ,  Ellis Cha ,  Robert Chu

发明人： Xinjiang Shen ,  Zhu Feng ,  Ellis Cha ,  Robert Chu

IPC分类号： G11B5/60

CPC分类号： G11B5/6005

摘要： A DFH (Dynamic Flying Height) type slider ABS design has a stable flying height and a DFH efficiency that is uniform across the entire disk surface. These properties are a result of embedding the read/write head and heater in a trapezoidally bridged micro-pad having a very small surface area. The micro-pad is surrounded by a wing-like structure that projects from a central rail in the ABS and the micro pad is connected to an inner edge of that structure by a bridge having a trapezoidal shape. The trapezoidal shape responds effectively to variations in air flow direction and pressure point as the slider moves across the disk surface and, as a result, provides the uniform DFH efficiency. At the same time, the projecting wings and adjacent topology help to direct the airflow around the micro-pad and provide the stable flying height.

摘要翻译： DFH（动态飞行高度）型滑块ABS设计具有稳定的飞行高度和整个磁盘表面均匀的DFH效率。 这些性质是将读/写头和加热器嵌入具有非常小的表面积的梯形桥接微垫中的结果。 微垫被由ABS中的中心轨道突出的翼状结构包围，并且微垫通过具有梯形形状的桥连接到该结构的内边缘。 当滑块越过盘表面时，梯形形状有效地响应于空气流动方向和压力点的变化，结果提供了均匀的DFH效率。 同时，突出的机翼和相邻的拓扑结构有助于引导微型焊盘周围的气流，并提供稳定的飞行高度。

公开(公告)号：US20060177570A1

公开(公告)日：2006-08-10

申请号：US11399124

申请日：2006-04-06

申请人： Zhu Feng ,  Ellis Cha

发明人： Zhu Feng ,  Ellis Cha

IPC分类号： B05D5/12 ,  G11B5/187 ,  G11B5/33

CPC分类号： B82Y30/00 ,  G11B5/255 ,  Y10T428/11

摘要： A system and method for providing corrosion protection for a magnetic read/write head is disclosed. A monolayer surface coating is applied to cover those portions of the under layer of a magnetic read/write head not already covered by a previously applied diamond-like coating. This allows for a thinner diamond like coating than previously applied in the art. The monolayer surface coating can be a self-assembled monolayer, such as an organosilicon for hydroxylated surfaces or carboxylic acids for aluminum or other metal oxides. Alternatively, the monolayer surface coating can be directly applied to the under layer with no diamond-like coating being present. The monolayer surface coating can be applied by a surface immersion process or by a vacuum coating process.

摘要翻译： 公开了一种用于为磁读/写头提供防腐蚀的系统和方法。 施加单层表面涂层以覆盖未被先前施加的类金刚石涂层覆盖的磁读/写头的下层的那些部分。 这允许比本领域中先前应用的更薄的金刚石类涂层。 单层表面涂层可以是自组装单层，例如羟基化表面的有机硅或铝或其它金属氧化物的羧酸。 或者，单层表面涂层可以直接施加到底层，而不存在类金刚石涂层。 单层表面涂层可以通过表面浸渍法或真空镀膜法施加。

公开(公告)号：US07042670B2

公开(公告)日：2006-05-09

申请号：US10618145

申请日：2003-07-11

申请人： Zhu Feng ,  Ellis Cha ,  David Hu ,  Yen Fu

发明人： Zhu Feng ,  Ellis Cha ,  David Hu ,  Yen Fu

IPC分类号： G11B5/60

CPC分类号： G11B5/581 ,  G11B5/6017

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 electrical pad may be coupled to the slider separate from the magnetic head to allow a charging electrical conductor 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. A feedback control system may monitor and control the head-disk spacing by measuring 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。 充电电焊盘可以耦合到滑块与磁头分离，以允许充电电导体向滑块施加电荷。 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。 反馈控制系统可以通过测量滑块和磁盘周围的温度或其他环境条件来监视和控制磁头盘间距。

公开(公告)号：US20050007687A1

公开(公告)日：2005-01-13

申请号：US10618145

申请日：2003-07-11

申请人： Zhu Feng ,  Ellis Cha ,  David Hu ,  Yen Fu

发明人： Zhu Feng ,  Ellis Cha ,  David Hu ,  Yen Fu

IPC分类号： G11B5/58 ,  G11B5/60 ,  G11B21/21 ,  G11B21/02 ,  G11B27/36

CPC分类号： G11B5/581 ,  G11B5/6017

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 electrical pad may be coupled to the slider separate from the magnetic head to allow a charging electrical conductor 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. A feedback control system may monitor and control the head-disk spacing by measuring 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。 充电电焊盘可以耦合到滑块与磁头分离，以允许充电电导体向滑块施加电荷。 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。 反馈控制系统可以通过测量滑块和磁盘周围的温度或其他环境条件来监视和控制磁头盘间距。

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。