Lube-Surfing Recording and Its Feasibility Exploration
Lube-Surfing Recording and Its Feasibility Exploration
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DOI：
10.1109/tmag.2008.2010671
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发表时间：
2009-02
影响因子：
2.1
通讯作者：
B. Liu;M. Zhang;S.K. Yu;W. Hua;Y.S. Ma;W.D. Zhou;L. Gonzaga;Y. Man
中科院分区：
文献类型：
--
作者：
B. Liu;M. Zhang;S.K. Yu;W. Hua;Y.S. Ma;W.D. Zhou;L. Gonzaga;Y. Man
减小磁头和磁盘介质之间的间隔对于能够进一步增加磁盘驱动器的记录密度至关重要。到目前为止，所探索的头盘接口技术可以分为以下两类：飞行记录和接触记录。将面密度推向10 Tb/in 2需要磁间距降至3 nm水平，这对于常规的飞内或接触方案来说难以实现如此小的磁间距。本文报道了作者对滑波记录机制的探索--大部分滑片表面在磁盘表面上飞行，只有微小的突出的读/写磁头区在磁盘的润滑表面上冲浪。实现这种机制的关键因素包括检测滑块-润滑剂接触的技术，纳米致动器和主动接触深度控制，先进的滑块空气轴承设计，使滑块很好地跟随磁盘表面波纹并确保接触深度，超光滑的滑块和磁盘表面，研究结果表明，该磁头是一种很有前途的滑片接触检测传感器。结果还表明，接触深度控制是很重要的，这是可能的，有稳定的滑块冲浪的润滑剂，如果接触深度是在一定范围内。
Reducing the spacing between the magnetic head and the magnetic disk media is of crucial importance in enabling further increased recording density of the magnetic disk drives. The head-disk interface technology explored up to now can be classified into the following two categories: in-fly recording and in-contact recording. Pushing the areal density towards 10 Tb/in2 requires the magnetic spacing down to 3 nm level, which it is difficult for the conventional in-fly or in-contact schemes to achieve so small a magnetic spacing. This paper reports the authors' exploration of lube-surfing recording mechanism-majority of slider surface flying over the disk surface and only the tiny protruded read/write head area surfing on the lubricant surface of the disk. The key factors for achieving such a mechanism include technology to sense slider-lubricant contact, nano-actuator and active contact depth control, advanced slider air-bearing design to make the slider well follow up the disk surface waviness and secure the contact depth, super-smooth slider and disk surfaces, and so on. Results presented in this work suggest that the read head can be a promising transducer for slider-lubricant contact detection. Results also suggest that contact depth control is important for this scheme and it is possible to have stable slider surfing on the lubricant, if the contact depth is within a certain range.