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Hybrid Microdrive System with Recoverable Opto-Silicon Probe and Tetrode for Dual-Site High Density Recording in Freely Moving Mice

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Flexible optical disk system with a sample servo format.

N Tamaru, H Hosaka

|August 21, 2010

Summary

This summary is machine-generated.

This study introduces a low-cost, high-capacity 90-mm flexible optical disk system. It achieves precise tracking for reliable data recording and erasing on rewritable phase-change media.

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Area of Science:

Optical data storage
Materials science
Mechanical engineering

Background:

Advancements in optical disk technology are crucial for high-capacity data storage.
Developing low-cost, reliable recording media and compact drive systems remains a key challenge.
Phase-change rewritable disks offer potential for high-density data storage.

Purpose of the Study:

To investigate a high-capacity 90-mm flexible optical disk system utilizing phase-change rewritable media.
To achieve low-cost recording media and compact drive designs.
To confirm the system's feasibility through write-erase operations.

Main Methods:

Utilizing a stable rotating flexible disk supported by thrust air bearings within a plastic cartridge.
Implementing a sample servo system with photographically replicated square servo marks for radial tracking.
Achieving a disk tilt of less than 5 mrad for stable operation.

Main Results:

A radial tracking-control precision of 0.2 microm was attained.
Stable disk rotation and support were demonstrated.
Successful write-erase operations were confirmed at a 2-microm track pitch.

Conclusions:

The developed 90-mm flexible optical disk system demonstrates feasibility for high-capacity data storage.
The system's design, incorporating air bearings and a precise servo system, enables reliable performance.
This technology offers a promising path towards low-cost recording media and smaller optical drives.