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1. 发明申请

WO2006052757A2 ELECTRICAL CURRENT AS PROBE FOR MODULATION AT HEAD-DISK INTERFACE 审中-公开
标题翻译：电流作为调制头盘接口的探头
公开(公告)号：WO2006052757A2
公开(公告)日：2006-05-18
申请号：PCT/US2005/040030
申请日：2005-11-04
申请人： SAE MAGNETICS (H.K.) LTD. , FENG, Zhu , ZHANG, Xiaofeng , CHA, Ellis
发明人： FENG, Zhu , ZHANG, Xiaofeng , CHA, Ellis
IPC分类号： G11B5/012
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，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。

2. 发明申请

WO2004038698A3 METHOD AND APPARATUS FOR GROUNDING A MAGNETIC RECORDING HEAD 审中-公开
标题翻译：用于接地磁记录头的方法和装置
公开(公告)号：WO2004038698A3
公开(公告)日：2004-12-23
申请号：PCT/US0333074
申请日：2003-10-14
申请人： SAE MAGNETICS HK LTD , CHA ELLIS , WANG PO-KANG , TIAN HONG , HERNANDEZ MANUEL , TANG YAW-SHING , FU YEN , HU BEN
发明人： CHA ELLIS , WANG PO-KANG , TIAN HONG , HERNANDEZ MANUEL , TANG YAW-SHING , FU YEN , HU BEN
IPC分类号： B24B37/00 , B24D18/00 , G11B5/48 , G11B5/60
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 (201) to ground. In one embodiment, a bonding pad (227) is provided on a side of the slider body separate from the bonding pad(s) used for read/write signals. This separate bonding pas is electrically coupled within the slider body to components that are to be coupled to ground. A separate conductor (223) 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：呈现了用于将滑块（201）电耦合到地的方法和装置。在一个实施例中，在与用于读/写信号的接合焊盘分离的滑块体的一侧上设置焊盘（227）。这种单独的接合片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（223）（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。

3. 发明申请

WO2004102537A3 MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE OF A MAGNETIC HEAD AND MEDIA 审中-公开
标题翻译：在磁头和介质界面测量和中和电荷
公开(公告)号：WO2004102537A3
公开(公告)日：2006-05-18
申请号：PCT/US2004014400
申请日：2004-05-07
申请人： SAE MAGNETICS HK LTD , FENG ZHU , CHA ELLIS , ZHANG XIAOFENG
发明人： FENG ZHU , CHA ELLIS , ZHANG XIAOFENG
IPC分类号： G11B5/60 , B05D5/12 , G11B21/21 , G11B33/14
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 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不同的外部电荷来测量。

4. 发明申请

WO2004102537A2 MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE OF A MAGNETIC HEAD AND MEDIA 审中-公开
标题翻译：在磁头和介质界面测量和中和电荷
公开(公告)号：WO2004102537A2
公开(公告)日：2004-11-25
申请号：PCT/US2004/014400
申请日：2004-05-07
申请人： SAE MAGNETICS (H.K.) LTD. , FENG, Zhu , CHA, Ellis , ZHANG, Xiaofeng
发明人： FENG, Zhu , CHA, Ellis , ZHANG, Xiaofeng
IPC分类号： G11B
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 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不同的外部电荷来测量。

5. 发明申请

WO2005077043A2 ELECTRICAL CURRENT MEASURMENTS AT HEAD-DISK INTERFACE 审中-公开
标题翻译：电磁盘接口电流测量
公开(公告)号：WO2005077043A2
公开(公告)日：2005-08-25
申请号：PCT/US2005/004042
申请日：2005-02-08
申请人： SAE MAGNETICS (H.K.) LTD. , ZHANG, Xiaofeng , FENG, Zhu , CHA, Ellis, T. , FU, Yen
发明人： ZHANG, Xiaofeng , FENG, Zhu , CHA, Ellis, T. , FU, Yen
IPC分类号： G11B5/012 , G11B5/02 , G11B5/40
CPC分类号： G11B5/40
摘要： According to an embodiment of the present invention, head/disk contact events are determined through a measurement of current at the head disk interface. For example, an ammeter/voltage source component may be electrically coupled to a magnetic/slider of a disk drive as well as to a spindle coupled to the recording medium. Applied voltage to the slider may result in a lower flying height. Greater measured current by the ammeter could indicate head/disk contact and assist in adjusting applied voltage to obtain a desire flying height.
摘要翻译：根据本发明的实施例，头/盘接触事件通过头磁盘接口处的电流测量来确定。例如，电流表/电压源组件可以电耦合到盘驱动器的磁/滑块以及耦合到记录介质的主轴。对滑块施加的电压可能导致较低的飞行高度。通过电流表测量的电流可以指示头/盘接触，并有助于调整施加的电压以获得期望的飞行高度。

6. 发明申请

WO2004038698A2 METHOD AND APPARATUS FOR GROUNDING A MAGNETIC RECORDING HEAD 审中-公开
标题翻译：用于接地磁记录头的方法和装置
公开(公告)号：WO2004038698A2
公开(公告)日：2004-05-06
申请号：PCT/US2003/033074
申请日：2003-10-14
申请人： SAE MAGNETICS (H.K.) LTD. , CHA, Ellis , WANG, Po-Kang , TIAN, Hong , HERNANDEZ, Manuel , TANG, Yaw-Shing , FU, Yen , HU, Ben
发明人： CHA, Ellis , WANG, Po-Kang , TIAN, Hong , HERNANDEZ, Manuel , TANG, Yaw-Shing , FU, Yen , HU, Ben
IPC分类号： G11B
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 pas 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。这种单独的接合片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。

7. 发明申请

WO2005057553A3 A METHOD FOR TESTING A MICRO-ACTUATOR IN A MAGNETIC TESTER 审中-公开
标题翻译：一种用于测试磁性测试仪中的微型致动器的方法
公开(公告)号：WO2005057553A3
公开(公告)日：2006-03-23
申请号：PCT/US2004040866
申请日：2004-12-06
申请人： SAE MAGNETICS HK LTD , ZHU LI-YAN , YANG CHAI-HUI , ZHANG XIAFENG , FU YEN , CHA ELLIS T
发明人： ZHU LI-YAN , YANG CHAI-HUI , ZHANG XIAFENG , FU YEN , CHA ELLIS T
IPC分类号： G11B20060101 , G11B5/455 , G11B5/54 , G11B21/02 , 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 microactuator 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型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。微型致动器的第一冲程特性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。

8. 发明申请

WO2005077043A3 ELECTRICAL CURRENT MEASUREMENTS AT HEAD-DISK INTERFACE 审中-公开
标题翻译：电磁盘接口电流测量
公开(公告)号：WO2005077043A3
公开(公告)日：2006-03-16
申请号：PCT/US2005004042
申请日：2005-02-08
申请人： SAE MAGNETICS HK LTD , ZHANG XIAOFENG , FENG ZHU , CHA ELLIS T , FU YEN
发明人： ZHANG XIAOFENG , FENG ZHU , CHA ELLIS T , FU YEN
IPC分类号： G11B5/012 , G11B5/02 , G11B5/40 , G11B5/58 , G11B5/596 , G11B17/00 , G11B33/14
CPC分类号： G11B5/40
摘要： According to an embodiment of the present invention, head/disk contact events are determined through a measurement of current at the head disk interface. For example, an ammeter/voltage source component may be electrically coupled to a magnetic/slider of a disk drive as well as to a spindle coupled to the recording medium. Applied voltage to the slider may result in a lower flying height. Greater measured current by the ammeter could indicate head/disk contact and assist in adjusting applied voltage to obtain a desire flying height.
摘要翻译：根据本发明的实施例，头/盘接触事件通过头磁盘接口处的电流测量来确定。例如，电流表/电压源组件可以电耦合到盘驱动器的磁/滑块以及耦合到记录介质的主轴。对滑块施加的电压可能导致较低的飞行高度。通过电流表测量的电流可以指示头/盘接触，并有助于调整施加的电压以获得期望的飞行高度。

9. 发明申请

WO2004066108A3 DETECTION OF SLIDER-DISK INTERFERENCE USING A DYNAMIC PARAMETRIC TEST 审中-公开
公开(公告)号：WO2004066108A3
公开(公告)日：2004-08-05
申请号：PCT/US2004/000574
申请日：2004-01-13
申请人： SAE MAGNETICS (H.K.) LTD. , ZHU, Li-Yan , ZHANG, Xiao-Feng , FU, Yen , CHA, Ellis, T.
发明人： ZHU, Li-Yan , ZHANG, Xiao-Feng , FU, Yen , CHA, Ellis, T.
IPC分类号： G01R33/12
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 read-back signal track profile for the slider/head.

10. 发明申请

WO2006052757A3 ELECTRICAL CURRENT AS PROBE FOR MODULATION AT HEAD-DISK INTERFACE 审中-公开
标题翻译：电流作为调制头盘接口的探头
公开(公告)号：WO2006052757A3
公开(公告)日：2009-04-02
申请号：PCT/US2005040030
申请日：2005-11-04
申请人： SAE MAGNETICS HK LTD , FENG ZHU , ZHANG XIAOFENG , CHA ELLIS
发明人： FENG ZHU , ZHANG XIAOFENG , CHA ELLIS
IPC分类号： G11B21/02 , G11B5/012 , G11B5/02 , G11B5/40
CPC分类号： G11B5/455 , G11B5/40 , G11B5/4555 , G11B5/6005
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，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。

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