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1. 发明申请

US20100027152A1 SYSTEM, METHOD AND APPARATUS FOR DIRECT HEAD-DISK CLEARANCE MEASUREMENT BY SLIDER VIBRATION AND FLY HEIGHT CALIBRATION 有权
标题翻译：用于通过滑块振动和飞行高度校准的直接头盘间隙测量的系统，方法和装置
公开(公告)号：US20100027152A1
公开(公告)日：2010-02-04
申请号：US12184300
申请日：2008-08-01
申请人： Shanlin Duan , Jizhong He , John Stephen Hopkins , Yansheng Luo
发明人： Shanlin Duan , Jizhong He , John Stephen Hopkins , Yansheng Luo
IPC分类号： G11B21/02
CPC分类号： G11B5/6005
摘要： A method models and calibrates the fly height of a slider above the disk for disk drives. The calibration scheme uses the Wallace spacing loss equation and laser doppler velocimetry to predict fly height and detect the actual fly height of the slider. The slider is vibrated at selected resonances, such as by capacitive coupling to the disk, and the fly height is gradually reduced. In one version, contact between the slider and disk may be detected using an arm electronics sensor. The amplitude of mean-to-peak, vibration detection is used as an indication of the actual fly height and to calibrate the modeled fly height.
摘要翻译：一种方法建模和校准磁盘驱动器磁盘上方的浮动高度。校准方案使用华莱士间距损失方程和激光多普勒测速来预测飞行高度并检测滑块的实际飞行高度。滑块以所选择的谐振振动，例如通过电容耦合到盘，并且飞行高度逐渐减小。在一个版本中，可以使用臂电子传感器来检测滑块和盘之间的接触。使用平均峰值振幅检测的幅度作为实际飞行高度的指示，并校准建模的飞行高度。

2. 发明申请

US20100142344A1 METHOD FOR DIRECT HEAD-DISK CLEARANCE MEASUREMENT BY SLIDER VIBRATION AND FLY HEIGHT CALIBRATION 审中-公开
标题翻译：通过滑块振动和飞行高度校准进行直接头盘间隙测量的方法
公开(公告)号：US20100142344A1
公开(公告)日：2010-06-10
申请号：US12709554
申请日：2010-02-22
申请人： Shanlin Duan , Jizhong He , John Stephen Hopkins , Yansheng Luo
发明人： Shanlin Duan , Jizhong He , John Stephen Hopkins , Yansheng Luo
IPC分类号： G11B27/36
CPC分类号： G11B5/6005
摘要： A method models and calibrates the fly height of a slider above the disk for disk drives. The calibration scheme uses the Wallace spacing loss equation and laser doppler velocimetry to predict fly height and detect the actual fly height of the slider. The slider is vibrated at selected resonances, such as by capacitive coupling to the disk, and the fly height is gradually reduced. In one version, contact between the slider and disk may be detected using an arm electronics sensor. The amplitude of mean-to-peak, vibration detection is used as an indication of the actual fly height and to calibrate the modeled fly height.
摘要翻译：一种方法建模和校准磁盘驱动器磁盘上方的浮动高度。校准方案使用华莱士间距损失方程和激光多普勒测速来预测飞行高度并检测滑块的实际飞行高度。滑块以所选择的谐振振动，例如通过电容耦合到盘，并且飞行高度逐渐减小。在一个版本中，可以使用臂电子传感器来检测滑块和盘之间的接触。使用平均峰值振幅检测的幅度作为实际飞行高度的指示，并校准建模的飞行高度。

3. 发明授权

US07724462B2 System, method and apparatus for direct head-disk clearance measurement by slider vibration and fly height calibration 有权
标题翻译：通过滑块振动和飞行高度校准直接测量头盘间隙的系统，方法和装置
公开(公告)号：US07724462B2
公开(公告)日：2010-05-25
申请号：US12184300
申请日：2008-08-01
申请人： Shanlin Duan , Jizhong He , John Stephen Hopkins , Yansheng Luo
发明人： Shanlin Duan , Jizhong He , John Stephen Hopkins , Yansheng Luo
IPC分类号： G11B21/02 , G11B27/36
CPC分类号： G11B5/6005
摘要： A method models and calibrates the fly height of a slider above the disk for disk drives. The calibration scheme uses the Wallace spacing loss equation and laser doppler velocimetry to predict fly height and detect the actual fly height of the slider. The slider is vibrated at selected resonances, such as by capacitive coupling to the disk, and the fly height is gradually reduced. In one version, contact between the slider and disk may be detected using an arm electronics sensor. The amplitude of mean-to-peak, vibration detection is used as an indication of the actual fly height and to calibrate the modeled fly height.
摘要翻译：一种方法建模和校准磁盘驱动器磁盘上方的浮动高度。校准方案使用华莱士间距损失方程和激光多普勒测速来预测飞行高度并检测滑块的实际飞行高度。滑块以所选择的谐振振动，例如通过电容耦合到盘，并且飞行高度逐渐减小。在一个版本中，可以使用臂电子传感器来检测滑块和盘之间的接触。使用平均峰值振幅检测的幅度作为实际飞行高度的指示，并校准建模的飞行高度。

4. 发明授权

US07990652B2 Perpendicular magnetic write head with stepped write pole for reduced MCW dependency on skew angle 有权
标题翻译：具有阶梯式写入极的垂直磁性写入头，用于减小MCW对偏斜角的依赖
公开(公告)号：US07990652B2
公开(公告)日：2011-08-02
申请号：US11949620
申请日：2007-12-03
申请人： Wen-Chien David Hsiao , Yimin Hsu , Quan-chiu Harry Lam , Yansheng Luo , Vladimir Nikitin , Changqing Shi
发明人： Wen-Chien David Hsiao , Yimin Hsu , Quan-chiu Harry Lam , Yansheng Luo , Vladimir Nikitin , Changqing Shi
IPC分类号： G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A magnetic write head for perpendicular magnetic data recording having a notched write pole for reduced magnetic core width (MCW) dependence on skew. The write pole is configured with a notch that can extend to or slightly beyond the flare point of the write pole, and is formed on the leading portion of the write pole. The notch can have a notch depth, as measured from the ABS of 50-200 nm or about 120 nm. The notch can have a notch height, measured in the down track direction that is 40-90 nm or 20-90 percent of the write pole height.
摘要翻译：用于垂直磁数据记录的磁写头，具有用于减小磁芯宽度（MCW）的偏斜写入极对偏斜的依赖性。写入极配置有可以延伸到或稍微超过写入极的闪点的凹口，并且形成在写入极的引导部分上。切口可以具有从50-200nm或约120nm的ABS测量的切口深度。切口可以具有沿向下方向测量的切口高度，其为40-90nm或写入极高度的20-90％。

5. 发明申请

US20090141397A1 PERPENDICULAR MAGNETIC WRITE HEAD WITH STEPPED WRITE POLE FOR REDUCED MCW DEPENDENCY ON SKEW ANGLE 有权
标题翻译：具有逐步写入功能的扁平磁头，用于减少MCW依赖于角度角
公开(公告)号：US20090141397A1
公开(公告)日：2009-06-04
申请号：US11949620
申请日：2007-12-03
申请人： Wen-Chien David Hsiao , Yimin Hsu , Quan-chiu Harry Lam , Yansheng Luo , Vladimir Nikitin , Changqing Shi
发明人： Wen-Chien David Hsiao , Yimin Hsu , Quan-chiu Harry Lam , Yansheng Luo , Vladimir Nikitin , Changqing Shi
IPC分类号： G11B5/127 , G11B5/23
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3146 , G11B5/315
摘要： A magnetic write head for perpendicular magnetic data recording having a notched write pole for reduced magnetic core width (MCW) dependence on skew. The write pole is configured with a notch that can extend to or slightly beyond the flare point of the write pole, and is formed on the leading portion of the write pole. The notch can have a notch depth, as measured from the ABS of 50-200 nm or about 120 nm. The notch can have a notch height, measured in the down track direction that is 40-90 nm or 20-90 percent of the write pole height.
摘要翻译：用于垂直磁数据记录的磁写头，具有用于减小磁芯宽度（MCW）的偏斜写入极对偏斜的依赖性。写入极配置有可以延伸到或稍微超过写入极的闪点的凹口，并且形成在写入极的引导部分上。切口可以具有从50-200nm或约120nm的ABS测量的切口深度。切口可以具有沿向下方向测量的切口高度，其为40-90nm或写入极高度的20-90％。

6. 发明申请

US20060119354A1 Magnetic reader recording characterization at slider or bar level 失效
标题翻译：磁性阅读器记录滑块或条形图表示
公开(公告)号：US20060119354A1
公开(公告)日：2006-06-08
申请号：US11004456
申请日：2004-12-03
申请人： Xiaodong Che , Wenchien Hsiao , Yansheng Luo , Xiaoyu Sui
发明人： Xiaodong Che , Wenchien Hsiao , Yansheng Luo , Xiaoyu Sui
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B5/455 , G11B2220/2516
摘要： An apparatus for reader characterization is described. The apparatus includes a rotator for rotating a media. The media can contain a signal having a value for a function of a read/write head being assessed. The rotator is operable in conjunction with said apparatus. The apparatus also includes a proximator for proximalizing the media to the read/write head. The proximator is operable in conjunction with said apparatus. The apparatus further includes a writer operable in conjunction with said assembly. The writer writes the signal upon the media. The signal emits the value of the function. The signal is detectable by a reader of the read/write head. The apparatus additionally includes an interface operable in the apparatus for providing removable orientation of the read/write head in an assessing position. The assessing position enables a reader of the read/write head to detect the signal upon rotation of the signal through the assessing position.
摘要翻译：描述用于读取器表征的装置。该装置包括用于旋转介质的旋转器。媒体可以包含具有被评估的读/写头的功能的值的信号。旋转器可与所述装置结合操作。该装置还包括用于将介质近端连接到读/写头的近摄器。接近器可与所述装置结合操作。该装置还包括可与所述组件结合操作的写入器。作者将信号写入媒体。该信号发出该功能的值。信号可由读/写头的读取器检测。该装置还包括可在该装置中操作的接口，用于在评估位置提供读/写头的可移除取向。评估位置使得读/写头的读取器能够在通过评估位置旋转信号时检测信号。

7. 发明申请

US20060092543A1 System, method, and apparatus for in-situ stray magnetic field measurement 失效
标题翻译：用于原位杂散磁场测量的系统，方法和装置
公开(公告)号：US20060092543A1
公开(公告)日：2006-05-04
申请号：US10977678
申请日：2004-10-29
申请人： Xiaodong Che , Wen-Chien Hsiao , Yansheng Luo , Xiaoyu Sui
发明人： Xiaodong Che , Wen-Chien Hsiao , Yansheng Luo , Xiaoyu Sui
IPC分类号： G11B15/04
CPC分类号： G11B25/043 , G11B33/1493
摘要： A hard disk drive (HDD) detects and measures external stray magnetic fields with existing HDD components. After detecting a strong external magnetic field, read and write operations of the HDD are suspended, and/or other proper corrective actions are taken to minimize loss of data. To measure the stray magnetic field, the magnetic head reader is used as a field sensor. The resistance of the reader changes in the presence of the field, such as with the preamp in the HDD. The resistance also changes with temperature. If the temperature inside the HDD is measured, the resistance change due to temperature is normalized. Even without being able to measure the HDD temperature, the stray magnetic field can be measured with a top head and a bottom head in the HDD. The temperature sensitivity of the reader is thereby cancelled out.
摘要翻译：硬盘驱动器（HDD）用现有的HDD组件来检测和测量外部杂散磁场。在检测到强大的外部磁场之后，HDD的读取和写入操作被暂停，和/或采取其他适当的纠正措施以最小化数据丢失。为了测量杂散磁场，磁头阅读器被用作场传感器。读取器的电阻会在场的存在情况下发生变化，例如使用HDD中的前置放大器。电阻也随温度而变化。如果测量HDD内部的温度，则由于温度导致的电阻变化被归一化。即使不能测量HDD温度，也可以用HDD中的顶部头部和底部头部来测量杂散磁场。因此读取器的温度敏感度被抵消。

8. 发明申请

US20140002927A1 WRITE HEAD STRUCTURE DESIGNED FOR TEMPERATURE INSENSITIVE WRITING PERFORMANCE 审中-公开
标题翻译：写入头结构设计用于温度敏感写作性能
公开(公告)号：US20140002927A1
公开(公告)日：2014-01-02
申请号：US13536880
申请日：2012-06-28
申请人： Wen-Chien D. Hsiao , Terence T.L. Lam , Yansheng Luo , Xinjiang Shen
发明人： Wen-Chien D. Hsiao , Terence T.L. Lam , Yansheng Luo , Xinjiang Shen
IPC分类号： G11B5/187
CPC分类号： G11B5/187 , G11B5/17 , G11B5/3106 , G11B5/3123 , G11B5/3136
摘要： A magnetic write head for magnetic data recording that includes a structure having a low coefficient of thermal expansion for controlling thermal expansion of the write head. The structure having a low coefficient of thermal expansion has a shape that substantially conforms to the shape of the write coil, such that both the write coil and the structure having a low coefficient of thermal expansion have a central portion that is located closest to the air bearing surface and outer end portions that bend away from the air bearing surface to form a horseshoe shape.
摘要翻译：一种用于磁数据记录的磁写头，其包括具有低热膨胀系数的结构，用于控制写头的热膨胀。具有低热膨胀系数的结构具有基本上符合写入线圈的形状的形状，使得写入线圈和具有低热膨胀系数的结构都具有位于最靠近空气的中心部分轴承表面和外端部分，其远离空气轴承表面弯曲以形成马蹄形。

9. 发明申请

US20110019309A1 MAGNETIC HEAD HAVING A STEPPED OR SEGMENTED WRAP AROUND SHIELD AND METHODS OF FORMATION THEREOF 有权
标题翻译：具有围绕镶嵌或镶嵌的磁带的磁头及其形成方法
公开(公告)号：US20110019309A1
公开(公告)日：2011-01-27
申请号：US12508860
申请日：2009-07-24
申请人： Wen-Chien David Hsiao , Yansheng Luo
发明人： Wen-Chien David Hsiao , Yansheng Luo
IPC分类号： G11B5/187
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/1871 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： According to one embodiment, a system comprises a magnetic pole having a media-facing end and a wrap around shield spaced from the magnetic pole, wherein the wrap around shield has a media-facing end positioned along three sides of the media-facing end of the magnetic pole and has inner, second, and middle regions separated by transitional regions. The inner region is closest to the media facing end of the magnetic pole, the second region is farthest from the media facing end of the magnetic pole, and the middle region is between the inner and second regions. A cross-sectional height of the inner region measured perpendicularly to the wrap around shield's media-facing end is less than a cross-sectional height of the second region, and a cross-sectional height of the middle region is greater than the cross-sectional height of the inner region and less than the cross-sectional height of the second region.
摘要翻译：根据一个实施例，一种系统包括具有面向媒体的端部和围绕屏蔽物与磁极间隔开的磁极的磁极，其中环绕屏蔽件具有面向介质的端部，其位于面向介质的端部的面向介质的端部的三侧磁极具有由过渡区域分隔的内部，第二和中部区域。内部区域最靠近磁极的与介质相对的端部，第二区域距磁极的与介质相对的端部最远，并且中间区域在内部区域和第二区域之间。内部区域的横截面高度垂直于围绕屏蔽物的面向介质的端部的横截面高度小于第二区域的横截面高度，并且中间区域的横截面高度大于横截面内部区域的高度并且小于第二区域的横截面高度。

10. 发明授权

US07007252B2 Method and apparatus for characterizing the propagation of noise through a cell in an integrated circuit 有权
标题翻译：用于表征通过集成电路中的单元的噪声传播的方法和装置
公开(公告)号：US07007252B2
公开(公告)日：2006-02-28
申请号：US10410903
申请日：2003-04-09
申请人： Alexander Gyure , Jindrich Zejda , Peivand Fallah-Tehrani , Wenyuan Wang , Chi-Chong Lo , Mahmoud Shahram , Yansheng Luo , William Chiu-Ting Shu , Seyed Alireza Kasnavi
发明人： Alexander Gyure , Jindrich Zejda , Peivand Fallah-Tehrani , Wenyuan Wang , Chi-Chong Lo , Mahmoud Shahram , Yansheng Luo , William Chiu-Ting Shu , Seyed Alireza Kasnavi
IPC分类号： G06F17/50 , G06F19/00 , G01R31/28 , G01R27/28 , G01R29/00
CPC分类号： G06F17/5036
摘要： One embodiment of the invention provides a system that characterizes cells within an integrated circuit. During operation, the system obtains a number of input noise signals to be applied to the cell. The system then simulates responses of the cell to each of the input noise signals, and stores a representation of the responses. This allows a subsequent analysis operation to access the stored representation to determine a response of the cell instead of having to perform a time-consuming simulation operation.
摘要翻译：本发明的一个实施例提供了表征集成电路内的单元的系统。在操作期间，系统获得要应用于单元的多个输入噪声信号。然后，系统模拟单元对每个输入噪声信号的响应，并存储响应的表示。这允许随后的分析操作访问存储的表示以确定单元的响应，而不必执行耗时的模拟操作。

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