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http://dx.doi.org/10.5369/JSST.2002.11.1.039

Fabrication and characteristics of electrostatic micro mirror for optical disk drives  

Kim, Jong-Wan (School of Information Tech. Korea University of Tech. & Edu.)
Seo, Hwa-Il (School of Information Tech. Korea University of Tech. & Edu.)
Lee, Woo-Young (School of Mechanical Eng. Korea University of Tech. & Edu.)
Rim, Kyung-Hwa (Dep. Of Control System Eng. Korea University of Tech. & Edu.)
Jang, Young-Jo (School of Information Tech. Korea University of Tech. & Edu.)
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Abstract
Optical disk drives read information by replacing a laser beam on the disk track. As information has become larger, the more accurate position control of a laser beam is necessary. In this paper, we report the analysis and fabrication of the micro mirror for optical disk drivers. The mirror was fabricated by using MEMS technology. Especially, the Process using the lapping and polishing step after the bonding of the mirror and electrode plates was employed for the process reliability. The mirror size was $2.5mm{\times}3mm$ and it needed about 35V for displacement of $3.2{\mu}m$.
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