Near Field MO Recording System

Sookyung Kim; Jin-Moo Park; Hewon Jeong; Jin-Yong Kim; Nohyu Kim

doi:10.3379/tmjpn2001.2.330

Sookyung Kim, Jin-Moo Park, Hewon Jeong, Jin-Yong Kim, Nohyu Kim

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Keywords: near-field recording (NFR), magnetooptical (MO) recording, optical flying head (OFH), optical pickup unit (OPU), slider, suspension, solid immersion lens (SIL), swing arm, MO media, MO coil, magnetic field modulation (MFM), contamination, thermal problem, ramp load/unload, ultrasonic cleaning

JOURNAL FREE ACCESS

2002 Volume 2 Issue 4 Pages 330-335

DOI https://doi.org/10.3379/tmjpn2001.2.330

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Abstract

In order to realize a practical storage with higher capacity, near field MO recording has been studied by designing an OFH stable and reliable against contamination. We analyzed an opto-mechanical system including the swing arm, suspension, slider, and developed an OPU adopting the OFH technology with an embedded thin film MO coil, and investigated the properties of lubricants for near field media. A highfrequency ultrasonic cleaning technique is applied and examined for the optical flying slider of the near field recording system to investigate the removal performance of the ultrasonic cleaning method for the sub-micron contaminants produced on the head.

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