Basic Design Guide Proposal on Nanometer Flying-Height Slider for Small Magnetic Disk Drives
Yoshinori Takeuchi*, and Katsuyuki Tanaka**
*Slider Engineering Department, Hitachi Global Storage Technologies, 2880 Kozu, Odawara-shi, Kanagawa 256-8510, Japan
**Department of Mechanical System Engineering, School of Engineering, University of Shiga Prefecture, 2500 Hassaka-cho, Hikone-shi, Shiga 522-8533, Japan
We propose a basic design guide to design a very low spacing slider for small magnetic disk drives. The design features; (1) A multipad or side-step slider to avoid a sudden decrease in flying height due to the yaw angle of the swing actuator. (2) The slider must be as small as possible to be stable because the very low flying height makes the slider tend to vibrate unstably. (3) High spacing mode must be avoided to stabilize the negative-pressure slider used in constant density recording (CDR) suitable for high-density magnetic media.
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