A MEMS-based monolithic electrostatic microactuator for ultra-low magnetic disk head fly height control
In: Selected Papers from the Eighth Joint Magnetism and Magnetic Materials-International Magnetics Conference (MMM-Intermag), San Antonio, TX, January 7-11, 2001IEEE transactions on magnetics 37(4):1915-1918
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Zugriff:
A novel MEMS-based electrostatic actuator design is proposed for recording head fly height control below 10 nm. Different from prior work on MEMS-based electrostatic microactuators designed for magnetic hard disk drives (HDD), the proposed microactuator is fabricated monolithically with a conventional head/slider design. The actuator is micromachined into the same side as the head element on a slider with a modified CMOS-MEMS process. It has an extremely small size, light weight and a very simple structure. The head is suspended and actuated up and down by the actuator during recording process to maintain a constant fly height. A desired range and precision of actuation is achieved under control voltages of less than 30 V. A mechanical resonant frequency of over 100 kHz is obtained.
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A MEMS-based monolithic electrostatic microactuator for ultra-low magnetic disk head fly height control
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Autor/in / Beteiligte Person: | FANG, CHEN ; HUIKAI, XIE ; FEDDER, Gary K |
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Quelle: | Selected Papers from the Eighth Joint Magnetism and Magnetic Materials-International Magnetics Conference (MMM-Intermag), San Antonio, TX, January 7-11, 2001IEEE transactions on magnetics 37(4):1915-1918 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2001 |
Medientyp: | Konferenz |
Umfang: | print, 11 ref 1 |
ISSN: | 0018-9464 (print) |
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