High density perpendicular recording at very low flying height under rarefied pressure condition
High density perpendicular recording at very low flying height under rarefied pressure condition
复制标题
稀薄压力条件下极低飞行高度高密度垂直记录
DOI：
10.1109/20.104755
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
J. Kishigami
中科院分区：
文献类型：
--
作者：
T. Kato;T. Ohkubo;J. Kishigami
为了在垂直的硬盘驱动器中获得更高的记录密度，降低飞行高度是很重要的。在降低环境压力下，测量了读/写特性与飞行高度之间的关系。降低的压力使飞行高度可以自由控制。从信噪比的角度对记录密度极限进行了评价。结果表明，薄膜磁头与CoCr/FeNi双层介质结合的记录密度超过600 kb/mm/sup / /，信噪比为26 dB，飞行高度极低，约为0.05 μ m，显示了薄膜磁头结合CoCr/FeNi介质在硬盘驱动器中的潜力。>
To attain higher recording densities in perpendicular rigid disk drives, it is important to decrease the flying height. The relation between read/write characteristics and the flying height under reduced ambient pressures was measured. The reduced pressure allows the flying height to be freely controlled. The limit of recording density is evaluated from the viewpoint of the signal-to-noise ratio (SNR). The result is a recording density of over 600 kb/mm/sup 2/ with SNR of 26 dB from a combination of a thin-film head and a CoCr/FeNi double-layered medium with the very low flying height of about 0.05 mu m. This recording density shows the potential of combining CoCr/FeNi media of thin-film heads in rigid disk drives. >