Jpn. J. Appl. Phys. 43 (2004) pp. 5078-5084  |Previous Article|  |Table of Contents|
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Improvement of Electron Beam Mastering Using Dry Etching Process

Osamu Kasono, Megumi Sato, Tatsuya Sugimoto¹, Yoshiaki Kojima and Masahiro Katsumura

(Received December 5, 2003; accepted February 19, 2004; published July 29, 2004)

We have developed an electron beam recorder and utilized it in high-density disk mastering. We discussed an electron scattering in disk mastering that degrades the reproduction performance of disks. In order to improve the reproduction performance, we applied a dry etching process to the disk mastering process, and confirmed its efficacy in reducing the scattering effect and improving disk noise by calculation and experiments. We fabricated `Blu-ray Disc'-type read-only memory disks with and without the dry etching process, and noticed the advantage of the dry etching process from the jitter comparison. Finally, a 4.7% jitter was achieved in a 25 GB capacity disk, while a 5.7% jitter was obtained in a 27 GB capacity disk with additional recording compensation.

URL: http://jjap.jsap.jp/link?JJAP/43/5078/
DOI: 10.1143/JJAP.43.5078

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