Share Email Print

Proceedings Paper

Micro translation table for near-field data storage using inverted-scratch-drive actuators
Author(s): Yoshiaki Kanamori; Hiroto Yahagi; Minoru Sasaki; Takahito Ono; Kazuhiro Hane
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We proposed a micro-translation-table to convey a recording medium to a near-field optical head. The microtranslation- table consisted of inverted scratch-drive-actuators (SDAs) actuated by electrostatic force. The microtranslation- table was fabricated on a silicon substrate with surface micromachining technology. The SDAs were arrayed in the same direction. An object was translated by mounting the object on the inverted SDA array. Each SDA can be operated with the step resolution of 1 nanometer order. Therefore, the SDA array is precise as well as powerful. We observed that a micro object was translated in the designed direction with the fabricated SDAs by applying AC voltage of ±600 V at 100Hz. The size of the SDA plate was 70 µm long, 70 µm wide, 1.3µm thick and with the bushing of 1 .5 µm high. We proposed a novel mechanism releasing the SDAs from the object by retracting them. Therefore, the X-Y translation is possible by placing the inverted SDAs in four different directions. When the SDA was retracted, the vertical displacement of the SDA plate was measured.

Paper Details

Date Published: 10 September 2002
PDF: 8 pages
Proc. SPIE 4928, MEMS/MOEMS Technologies and Applications, (10 September 2002); doi: 10.1117/12.483192
Show Author Affiliations
Yoshiaki Kanamori, Tohoku Univ. (Japan)
Hiroto Yahagi, Tohoku Univ. (Japan)
Minoru Sasaki, Tohoku Univ. (Japan)
Takahito Ono, Tohoku Univ. (Japan)
Kazuhiro Hane, Tohoku Univ. (Japan)

Published in SPIE Proceedings Vol. 4928:
MEMS/MOEMS Technologies and Applications
Guofan Jin; John S. McKillop; Kazuhiro Hane, Editor(s)

© SPIE. Terms of Use
Back to Top