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1. 发明授权

US08133530B2 One magnetic sided media for low cost and low capacity applications 有权
标题翻译：一种用于低成本和低容量应用的磁双面介质
公开(公告)号：US08133530B2
公开(公告)日：2012-03-13
申请号：US12220238
申请日：2008-07-22
申请人： Shanlin Duan , Kenneth Johnson , Owen Melroy
发明人： Shanlin Duan , Kenneth Johnson , Owen Melroy
IPC分类号： B05D5/12
CPC分类号： G11B5/82 , G11B5/64 , G11B5/7325 , G11B5/855
摘要： One-sided magnetic media for a hard disk drive. Methods are implemented to create a magnetic media with only one surface capable of recording data. The second surface is a non-data recording side of the media and is constructed so that it does not interfere with the recording properties of the recording side or the structural usefulness of the media. Additionally, the second surface can be a low quality surface capable of limited magnetic recording.
摘要翻译：用于硬盘驱动器的单面磁性介质。实现方法来创建仅具有能够记录数据的一个表面的磁介质。第二表面是介质的非数据记录侧，并且被构造成使其不干扰记录侧的记录特性或介质的结构有用性。此外，第二表面可以是能够限制磁记录的低质量表面。

2. 发明授权

US07946156B2 Glide test heads using heating elements to form a planar detection surface 有权
标题翻译：滑动测试头使用加热元件形成平面检测表面
公开(公告)号：US07946156B2
公开(公告)日：2011-05-24
申请号：US11964688
申请日：2007-12-26
申请人： Shanlin Duan , Jizhong He , Bruno Marchon , Ullal V. Nayak
发明人： Shanlin Duan , Jizhong He , Bruno Marchon , Ullal V. Nayak
IPC分类号： G11B5/455 , G01B7/34 , G01B5/28
CPC分类号： G11B5/455 , G11B5/3136
摘要： Glide test systems and associated methods are described. A glide test system includes a glide test head that is flown over the surface of a recording disk to detect asperities on the recording disk. The glide test head includes a detection pad on the trailing end of the head. Heating elements are fabricated proximate to the detection pad. The heating elements are independently controllable to control the amount of protrusion of different regions of the detection pad. The heating elements thus provide a way to substantially flatten the detection surface of the detection pad, and compensate for an uneven topography on a detection surface.
摘要翻译：描述了滑翔测试系统和相关方法。滑行测试系统包括滑动测试头，其在记录盘的表面上流动以检测记录盘上的凹凸。滑行测试头包括头部尾端上的检测垫。在检测板附近制造加热元件。加热元件可独立控制，以控制检测垫的不同区域的突出量。因此，加热元件提供了使检测焊盘的检测表面基本平坦化并且补偿检测表面上不均匀的形貌的方法。

3. 发明申请

US20080137225A1 APPARATUS, SYSTEM, AND METHOD FOR DETECTION OF FLY HEIGHT MARGIN USING CONTROLLED EXCITATION OF AIR BEARING MODE 有权
标题翻译：使用空气轴承模式的控制激励来检测飞行高度的装置，系统和方法
公开(公告)号：US20080137225A1
公开(公告)日：2008-06-12
申请号：US11609811
申请日：2006-12-12
申请人： Shanlin Duan , Jizhong He , John Stephen Hopkins
发明人： Shanlin Duan , Jizhong He , John Stephen Hopkins
IPC分类号： G11B21/02
CPC分类号： G11B5/6058 , G11B5/5534 , G11B5/6052 , G11B5/6076
摘要： An apparatus, system, and method are disclosed for fly height detection. The apparatus includes an actuator configured to induce vibrations in a glide head that is configured to detect physical asperities on a disk surface. The apparatus may also include a second end of the suspension arm coupled with the glide head and a sensor module that is configured to communicate with a control module in response to the glide head coming in contact with at least one physical asperity. The system includes the apparatus, a disk having a surface comprising physical asperities, and a head gimbal assembly configured to calibrate a fly height margin for the disk. The method includes inducing vibrations in a glide head, detecting physical asperities on a disk surface, and communicating with a control module in response to the glide head coming in contact with at least one physical asperity.
摘要翻译：公开了用于飞行高度检测的装置，系统和方法。该装置包括致动器，其构造成在滑动头中引起被配置为检测盘表面上的物理粗糙度的振动。该装置还可以包括悬挂臂的与滑行头连接的第二端和传感器模块，该传感器模块被配置成响应于滑动头与至少一个物理凹凸接触而与控制模块通信。该系统包括装置，具有包括物理粗糙度的表面的盘以及被配置为校准盘的飞行高度余量的头部万向节组件。该方法包括在滑动头部引起振动，检测盘表面上的物理粗糙度，以及响应于滑动头与至少一个物理粗糙度接触而与控制模块通信。

4. 发明申请

US20080062549A1 Method and system for testing of magnetic disks using F-BER 失效
标题翻译：使用F-BER测试磁盘的方法和系统
公开(公告)号：US20080062549A1
公开(公告)日：2008-03-13
申请号：US11515164
申请日：2006-09-01
申请人： Shanlin Duan , Zhupei Shi , Li Tang , Jane Jie Zhang
发明人： Shanlin Duan , Zhupei Shi , Li Tang , Jane Jie Zhang
IPC分类号： G11B27/36 , G11B5/09
CPC分类号： G11B19/048
摘要： Spinstand test improvement that measures Functional Byte Error Rate (F-BER) of a disk. The F-BER is correlated to the BER of a disk. The F-BER test is faster than a BER test. The F-BER test is incorporated into a spinstand tester or the software associated with a spinstand tester.
摘要翻译： Spinstand测试改进，用于测量磁盘的功能字节错误率（F-BER）。 F-BER与磁盘的BER相关。 F-BER测试比BER测试更快。 F-BER测试被并入到一个纺锤体测试仪或与一个纺锤体测试仪相关联的软件中。

5. 发明授权

US07173415B1 System, method, and apparatus for detecting signal-to-noise ratio decay in perpendicular magnetic recording 失效
标题翻译：用于检测垂直磁记录中信噪比衰减的系统，方法和装置
公开(公告)号：US07173415B1
公开(公告)日：2007-02-06
申请号：US11189594
申请日：2005-07-26
申请人： Shanlin Duan , Jizhong He , Zhupei Shi , Jane Jie Zhang
发明人： Shanlin Duan , Jizhong He , Zhupei Shi , Jane Jie Zhang
IPC分类号： G01R33/12
CPC分类号： G01R33/1207 , G11B5/012 , G11B5/02 , G11B5/09 , G11B5/4555 , G11B2005/001 , G11B2005/0021
摘要： A magnetic test module runs on a spin stand to detect amplitude decay and noise evolution at the same time. Signal-to-noise ratio (SNR) decay is directly measured. The recording performance is correlated better with SNR instead of signal only. The thermal stability of the system is evaluated more accurately with this SNR decay method. A heater is placed under the media disk, and a remote sensing thermometer and temperature controller form a subsystem to set up desired environmental temperature. The heater creates a heated band and the read/write head flies above the heated band. The temperature control system may be removed when SNR decay measurement is performed under room temperature.
摘要翻译：磁性测试模块在旋转架上运行，以同时检测振幅衰减和噪声演变。直接测量信噪比（SNR）衰减。记录性能与SNR而不是仅信号相关性更好。采用这种SNR衰减方法，更准确地评估了系统的热稳定性。将加热器放置在介质盘下方，并且遥感温度计和温度控制器形成子系统以建立所需的环境温度。加热器产生加热带，读/写头飞过加热带。当在室温下进行SNR衰减测量时，可以去除温度控制系统。

6. 发明授权

US06771453B2 Glide slider fly height calibration method using disk spin down and slider dynamic scan 失效
标题翻译：滑动滑块飞行高度校准方法使用磁盘旋转和滑块动态扫描
公开(公告)号：US06771453B2
公开(公告)日：2004-08-03
申请号：US10011474
申请日：2001-11-05
申请人： Bradley Frederick Baumgartner , An-Chou Andrew Chen , Norman H. Chu , Shanlin Duan , Patricia Galindo , Roger Yu Lo , Connie H. Moy , Hang Fai Ngo
发明人： Bradley Frederick Baumgartner , An-Chou Andrew Chen , Norman H. Chu , Shanlin Duan , Patricia Galindo , Roger Yu Lo , Connie H. Moy , Hang Fai Ngo
IPC分类号： G11B2102
CPC分类号： G11B5/5521 , G11B5/60 , G11B33/10
摘要： A calibration method for determining the flying height of a glide slider for disk glide height testing is disclosed. The method utilizes a disk with bumps in situ on a disk glide height tester. The method automatically takes into account disk topography, mounting tolerances, and slider roll.
摘要翻译：公开了一种用于确定用于盘滑动高度测试的滑动滑块的飞行高度的校准方法。该方法在磁盘滑移高度测试仪上利用具有凸起的盘。该方法自动考虑到磁盘形状，安装公差和滑块滚动。

7. 发明授权

US06413608B1 Seed layer and underlayer with high and low oxygen concentration portions for hand disk magnetic recording medium on a glass substrate 失效
标题翻译：在玻璃基板上的手盘磁记录介质的种子层和具有高和低氧浓度部分的底层
公开(公告)号：US06413608B1
公开(公告)日：2002-07-02
申请号：US09336641
申请日：1999-06-18
申请人： Xiaoping Bian , Mary Frances Doerner , Shanlin Duan , Jinshan Li , Mohammad Taghi Mirzamaani
发明人： Xiaoping Bian , Mary Frances Doerner , Shanlin Duan , Jinshan Li , Mohammad Taghi Mirzamaani
IPC分类号： G11B566
CPC分类号： G11B5/732 , C23C14/185 , G11B5/7325 , Y10S428/90 , Y10T428/24942 , Y10T428/265
摘要： The thin film magnetic disk of the present invention includes a non-metallic substrate having a seed layer deposited on the substrate, an underlayer deposited upon the seed layer composed of a chromium alloy having a relatively high oxygen concentration portion of from 2,000 ppm to 20,000 ppm and preferably approximately 4,000 ppm to 12,000 ppm, followed by a relatively low oxygen concentration portion of from 0-2,000 ppm, and preferably from 500 ppm to 1,500 ppm and a magnetic layer that is deposited upon the underlayer. The underlayer total thickness is in the range of from approximately 250 Å to approximately 700 Å with a preferred thickness of approximately 450 Å, wherein approximately half of the underlayer thickness is the high oxygen concentration portion and half is the low oxygen concentration portion.
摘要翻译：本发明的薄膜磁盘包括具有沉积在基板上的种子层的非金属基板，沉积在由具有2000ppm至20,000ppm的较高氧浓度部分的铬合金构成的种子层的底层优选为约4,000ppm〜12,000ppm，其次为相对较低的氧浓度部分为0〜2,000ppm，优选为500ppm〜1500ppm，以及沉积在底层上的磁性层。底层总厚度在约250至约700的范围内，优选的厚度约为450，其中下层厚度的大约一半是高氧浓度部分，一半是低氧浓度部分。

8. 发明申请

US20110149706A1 HIGH SENSITIVITY GLIDE SENSOR USING FRICTIONAL HEATING 有权
标题翻译：高灵敏度玻璃传感器使用摩擦加热
公开(公告)号：US20110149706A1
公开(公告)日：2011-06-23
申请号：US12646831
申请日：2009-12-23
申请人： Shanlin Duan , Jizhong He , John S. Hopkins , Kenneth E. Johnson
发明人： Shanlin Duan , Jizhong He , John S. Hopkins , Kenneth E. Johnson
IPC分类号： G11B20/18 , G11B5/02
CPC分类号： G11B5/40 , G11B5/8404 , G11B20/10203 , G11B20/1816 , G11B27/36 , G11B2220/2516
摘要： A tool for testing a magnetic disk for use in a magnetic disk drive. The tool detects surface defects or asperities by detecting a change in electrical resistance corresponding to a temperature change in a thermally sensitive layer. The apparatus includes a slider body having a thermally insulating layer formed on an air bearing surface of the slider body and a thermal sensor layer formed on the thermally insulating layer. The thermally insulating layer prevents thermal heat spikes in the thermal sensor layer (such as resulting from contact with an asperity) from dissipating quickly into the slider body itself. The thermal sensor layer is a material that exhibits a change in electrical resistance in response to a change in temperature and is preferably a PTC thermistor material which exhibits a large change in electrical resistance when a transition temperature has been reached.
摘要翻译：用于测试用于磁盘驱动器的磁盘的工具。该工具通过检测对应于热敏层的温度变化的电阻变化来检测表面缺陷或粗糙度。该装置包括：滑动体，其具有形成在滑块体的空气轴承表面上的绝热层和形成在绝热层上的热传感器层。隔热层防止热传感器层中的热热尖峰（例如由于与粗糙度的接触而导致的））快速消散到滑块体本身。热传感器层是响应于温度变化而呈现电阻变化的材料，优选是当达到转变温度时电阻变化很大的PTC热敏电阻材料。

9. 发明申请

US20110019298A1 TESTING MAGNETIC DISK PERFORMANCE WITH A SINGLE SLIDER SIMULATING SLIDERS OF VARIOUS DISK DRIVE SYSTEMS 有权
标题翻译：使用各种滑动模拟滑动驱动系统测试磁盘性能
公开(公告)号：US20110019298A1
公开(公告)日：2011-01-27
申请号：US12508363
申请日：2009-07-23
申请人： Shanlin Duan , Zhen Jin , Jane Jie Zhang , Kazhao Zhang
发明人： Shanlin Duan , Zhen Jin , Jane Jie Zhang , Kazhao Zhang
IPC分类号： G11B27/36
CPC分类号： G11B5/607 , G11B5/455
摘要： Magnetic disk drive systems and associated methods are described for testing magnetic disk performance for certification with a plurality of magnetic disk drive systems prior to installation. The test system may position a slider at a first spacing between the magnetic disk in the slider and simulate the recording performance of a disk drive system with the magnetic disk at the first spacing. The disk drive test system may then transfer a control signal to a heating element in the slider to move the slider to a different spacing between the magnetic disk and the slider to simulate the recording performance of another disk drive system. The test system may, thus, use a single slider to certify a magnetic disk with a plurality of disk drive systems.
摘要翻译：描述了磁盘驱动器系统和相关方法，用于在安装之前用多个磁盘驱动器系统测试用于认证的磁盘性能。测试系统可以将滑块定位在滑块中的磁盘之间的第一间隔处，并以第一间距模拟磁盘驱动器系统的记录性能。然后，磁盘驱动器测试系统可以将控制信号传送到滑块中的加热元件，以将滑块移动到磁盘和滑块之间的不同间隔，以模拟另一磁盘驱动器系统的记录性能。因此，测试系统可以使用单个滑动器来证实具有多个磁盘驱动器系统的磁盘。

10. 发明授权

US07121133B2 System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights 失效
标题翻译：用于滑坡头校准的系统，方法和装置，具有增强的PZT通道，用于非常低的资格滑行高度
公开(公告)号：US07121133B2
公开(公告)日：2006-10-17
申请号：US10857195
申请日：2004-05-28
申请人： Norman Chu , Shanlin Duan , Patricia Galindo , Hang Fai Ngo , Yu Lo , Nalin Zhou
发明人： Norman Chu , Shanlin Duan , Patricia Galindo , Hang Fai Ngo , Yu Lo , Nalin Zhou
IPC分类号： G01B7/34
CPC分类号： G11B5/6005 , G11B5/455
摘要： A glide head calibration technique uses two fly height calibrations on a disk media certifier. The first calibration point uses a spin down on bump technique at a first height, and the second calibration point uses a spin down on disk media roughness at a second lower height. With two height data points, a fly height curve of each glide head is approximated very accurately. Once the fly height curve is derived for each head, any fly height can be dialed-in by the disk media certifier for glide testing. This technique achieves glide fly heights between about 4 nm and 8 nm and does so with improved tolerances.
摘要翻译：滑动头校准技术在磁盘介质验证器上使用两个飞行高度校准。第一个校准点在第一个高度上使用一个旋转凹凸技术，第二个校准点在第二个较低高度的磁盘介质粗糙度上使用旋转。使用两个高度数据点，每个滑行头的飞行高度曲线非常准确地近似。一旦为每个头部导出了飞行高度曲线，则可以通过磁盘媒体验证者拨打任何飞行高度进行滑行测试。该技术实现了约4nm和8nm之间的滑翔飞行高度，并且具有改进的公差。

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