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    • 2. 发明申请
    • METHOD AND DATA STORAGE DEVICE FOR LASER FREE HEAT-ASSISTED MAGNETIC RECORDING
    • 用于激光自由加热磁记录的方法和数据存储装置
    • WO2012091675A1
    • 2012-07-05
    • PCT/SG2010/000491
    • 2010-12-31
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHYUAN, ZhiminLIU, BoLOW, Boon HaoZHOU, TiejunLEONG, Siang HueiZHANG, Mingsheng
    • YUAN, ZhiminLIU, BoLOW, Boon HaoZHOU, TiejunLEONG, Siang HueiZHANG, Mingsheng
    • G11B7/242G11B5/012
    • G11B5/127G11B5/314G11B2005/0021
    • A data storage device with a heat assisted magnetic recording (HAMR) system, a magnetic recording medium, and method for data storage are provided. The data storage device includes a magnetic recording medium, a magnetic recording head, a power supply, a controller and a switching device. The magnetic recording head includes a main pole having a surface area facing the magnetic recording medium. The controller is coupled to the magnetic recording head for controlling writing information to and reading information from the magnetic recording medium. The switching device electrically couples the power supply between the main pole and the magnetic recording medium in response to a signal provided from the controller when writing information to the magnetic recording medium. The magnetic recording medium comprises a plurality of layers, including a heating layer, a field enhanced conduction layer, and an electrode layer. The electrode layer is electrically coupleable to the power supply and the magnetic recording head for heating a portion of the heating layer opposite the magnetic recording head during writing of data by the magnetic recording head to the magnetic recording medium, the portion of the heating layer defined by an electric field applied to the field enhanced conduction layer.
    • 提供具有热辅助磁记录(HAMR)系统,磁记录介质和数据存储方法的数据存储装置。 数据存储装置包括磁记录介质,磁记录头,电源,控制器和开关装置。 磁记录头包括具有面向磁记录介质的表面积的主极。 控制器耦合到磁记录头,用于控制向磁记录介质写入信息和从磁记录介质读取信息。 当将信息写入磁记录介质时,开关装置响应于从控制器提供的信号,在主极和磁记录介质之间电耦合电源。 磁记录介质包括多个层,包括加热层,场增强传导层和电极层。 所述电极层电耦合到所述电源和所述磁记录头,用于在由所述磁记录头向所述磁记录介质写入数据期间加热与所述磁记录头相对的所述加热层的一部分,所述加热层的所述部分被限定 通过施加到场增强导电层的电场。
    • 5. 发明申请
    • METHOD AND TESTER FOR OPTICAL FLYING HEIGHT MEASUREMENT
    • 用于光学飞行高度测量的方法和测试仪
    • WO2007070015A1
    • 2007-06-21
    • PCT/SG2006/000387
    • 2006-12-12
    • AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHLIU, BoYUAN, ZhiminNG, Ka Wei
    • LIU, BoYUAN, ZhiminNG, Ka Wei
    • G01B11/14G01B9/02G11B21/21
    • G01B11/14G11B5/455G11B5/6011G11B21/21
    • A method for optical flying height measurement, and a flying height tester. The method the method comprises the steps of aligning a first slider and a second slider adjacent a transparent disk; varying a rotational speed of the disk relative to the first slider whereby a spacing between the first slider and the disk changes; measuring changes in a first reflected light intensity caused by interference of a light signal portion reflected from the first slider and a light signal portion reflected from a surface of the disk, wherein the rotational speed is varied over a range such that one maximum and minimum intensities pair is measured in the reflected light intensity; measuring a second reflected light intensity caused by interference of a light signal portion reflected from the second slider and a light signal portion reflected from a surface of the disk at a fixed rotational speed between the disk and the second slider; and calculate a flying height of the second slider using the measured maximum and minimum intensities pair and the measured second reflected light intensity.
    • 一种用于光学飞行高度测量的方法,以及飞行高度测试仪。 所述方法包括以下步骤:使与第一滑块和第二滑块相邻的透明盘对准; 改变盘相对于第一滑块的旋转速度,由此第一滑块和盘之间的间隔改变; 测量由所述第一滑块反射的光信号部分的干涉引起的第一反射光强度和从所述光盘表面反射的光信号部分的变化,其中所述转速在使得一个最大和最小强度 对以反射光强度测量; 测量由所述第二滑块反射的光信号部分的干涉引起的第二反射光强度和从所述光盘的表面以固定的转速在所述光盘与所述第二滑块之间反射的光信号部分; 并且使用所测量的最大和最小强度对以及所测量的第二反射光强度来计算第二滑块的飞行高度。