Slider Design Optimization for Lube-Surfing Head-Disk Interface Scheme
Slider Design Optimization for Lube-Surfing Head-Disk Interface Scheme
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DOI：
10.1109/tmag.2009.2039636
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发表时间：
2010-05
影响因子：
2.1
通讯作者：
L. Gonzaga;Bo Liu;Shengkai Yu;W. Hua;Weidong Zhou
中科院分区：
文献类型：
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作者：
L. Gonzaga;Bo Liu;Shengkai Yu;W. Hua;Weidong Zhou
未来高密度磁盘驱动器对磁间距的严格要求新的磁头磁盘接口方案。一种可能的方法是润滑剂冲浪方案，其中滑块主体的大部分飞行，而读/写（R/W）元件热突出以接触和渗透磁盘润滑剂。然而，这一方案要想可行，还需要克服许多挑战。这些挑战之一是具有改进的盘波度跟随能力的滑块，特别是对于波长小于滑块长度一半的波度。本文探讨了空气轴承的设计策略，以提高飞秒滑块的波跟随性能。我们提出一个W形？研究了尾焊盘布局、刻蚀深度和尾焊盘尺寸对磁盘波形跟随性能的影响。我们还采用了一种沟槽式尾垫结构，以减少R/W元件上的空气轴承压力，从而最大限度地减少润滑油接触期间的空气轴承压力损失，并提高致动效率。
The stringent magnetic spacing requirement of future high-density magnetic disk drives requires new head disk interface scheme. One possible approach is the lube-surfing scheme-where majority of the slider body is flying while the reader/writer (R/W) element is thermally protruded to contact and penetrate the disk lubricant. This scheme, however, has many challenges to overcome to be feasible. One of these challenges is a slider with improved disk waviness-following capability especially for waviness with wavelength less than half the slider length. This paper explores air bearing design strategies to improve the waviness-following performance of a Femto slider. We propose a ¿W-shaped¿ trailing pad slider and investigated the impact of pad layout, etching depth and trailing pad size to the disk waviness-following performance. We have also incorporated a trenched trailing pad structure to reduce air bearing pressure over the R/W element so as to minimize the loss in air bearing pressure during lube contact and to improve the actuation efficiency.