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    • 4. 发明申请
    • MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE OF A MAGNETIC HEAD AND MEDIA
    • 在磁头和介质界面测量和中和电荷
    • WO2004102537A2
    • 2004-11-25
    • PCT/US2004/014400
    • 2004-05-07
    • SAE MAGNETICS (H.K.) LTD.FENG, ZhuCHA, EllisZHANG, Xiaofeng
    • FENG, ZhuCHA, EllisZHANG, Xiaofeng
    • G11B
    • G11B5/60
    • 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.
    • 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。