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Conferences > ODS > 2003 > TuE > TuE22

Simple gap control structure in probe type head through frequency response separation scheme

Sung-Q Lee, Woo-Sub Youm, Ki-Bong Song, Eun-Kyung Kim, Jun-Ho Kim, Kyi-Hwan Park, and Kang-Ho Park

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Abstract

We propose the method of using only an actuator for z-directional regulating and for resonating the tip to measure tip-media distance in non-contact probe type data storage head. A piezo-resistive cantilever is attached to the actuator. Based on the frequency response separation scheme (FRSS), we impose the multiplex of the low frequency surface profile command signal for scanning and high frequency modulating signal for distance measurement to the actuator simultaneously, in order to simplify the actuator structure. From the standard grid sample image, we proved the feasibility of the proposed method.

© 2003 Optical Society of America

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