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首页> 外文期刊>IEEE Transactions on Magnetics >A Head Cleaning Procedure for Heat-Assisted Magnetic Recording
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A Head Cleaning Procedure for Heat-Assisted Magnetic Recording

机译：热辅助磁记录的头部清洁程序

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摘要

In the heat-assisted magnetic recording (HAMR), write-induced head contamination covering the near-field transducer (NFT) can affect the transmission efficiency of optical energy from the NFT to a recording medium. We have experimentally confirmed that write performances such as data track width and signal amplitude change as a function of elapsed write time due to accumulation of the write-induced head contamination. Unintended changes of write performances in a drive can lose the capability to perform magnetic recordings as requested by a host. Here, we introduce the head cleaning procedure which removes the contamination from the interfacing surface of the head by placing it in close proximity to a disk surface. Effectiveness of the cleaning operation for performance stabilization is demonstrated with integrated HAMR drives. Detrimental effects of the mechanical cleaning operation on both head and media reliabilities have not been observed.
机译：在热辅助磁记录（HAMR）中，覆盖近场换能器（NFT）的写感应磁头污染会影响光能从NFT到记录介质的传输效率。我们已通过实验证实，由于写入引起的磁头污染的积累，写入性能（例如数据磁道宽度和信号幅度）随经过的写入时间而变化。驱动器中写入性能的意外更改会失去执行主机要求的磁记录的能力。在这里，我们介绍了磁头清洁程序，该程序通过将磁头放置在磁盘表面附近来清除磁头接口表面上的污染物。集成HAMR驱动器证明了清洁操作对性能稳定的有效性。尚未观察到机械清洁操作对打印头和介质可靠性的有害影响。

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