DOI: 10.1143/jjap.43.4978. Media Technologies of 20 GB Single-Layer Rewritable Phase-Change Disc for HD DVD System

Media Technologies of 20 GB Single-Layer Rewritable Phase-Change Disc for HD DVD System

10.1143/jjap.43.4978

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

Sufficient signal amplitude, erase ratio and low amount of cross-erase must be attained to achieve higher recording capacity of rewritable phase-change media. We have developed new media technologies, such as the GeTe-rich GeTe-Sb2Te3 pseudobinary alloy recording film partially substituted with bismuth and an additional layer to control thermal diffusion. The recording layer material enables a high erase ratio with a high signal amplitude. The additional layer also reduces the amount of cross-erase while maintaining a sufficient erase ratio. We have successfully demonstrated rewritable phase-change media having 20 GB capacity by using these media technologies for the HD DVD system with a blue-violet laser diode having the wavelength of 405 nm, a numerical aperture of the objective lens of 0.65 and light incident on a 0.6-mm-thick substrate. In this paper, we describe our new media technologies and the evaluation results, such as tilt margins, uniformity, overwriting cyclability and life durability.

Bibliography

Ohmachi, N., Ashida, S., Yusu, K., Nakai, T., Ichihara, K., & Nakamura, N. (2004). Media Technologies of 20 GB Single-Layer Rewritable Phase-Change Disc for HD DVD System. Japanese Journal of Applied Physics, 43(7S), 4978.

Authors 6

Noritake Ohmachi (first)
Sumio Ashida (additional)
Keiichiro Yusu (additional)
Tsukasa Nakai (additional)
Katsutaro Ichihara (additional)
Naomasa Nakamura (additional)

References 10 Referenced 10

10.1143/JJAP.42.858 / Jpn. J. Appl. Phys. (2003)
10.1143/JJAP.42.1068 / Jpn. J. Appl. Phys. (2003)
10.1143/JJAP.42.1052 / Jpn. J. Appl. Phys. (2003)
10.1117/12.532417 / Proc. SPIE Int. Soc. Opt. Eng. (2003)
10.1117/12.532422 / Proc. SPIE Int. Soc. Opt. Eng. (2003)
{'key': ''}
10.1143/JJAP.42.971 / Jpn. J. Appl. Phys. (2003)
10.1117/12.453379 / Proc. SPIE Int. Soc. Opt. Eng. (2001)
10.1117/12.327934 / Proc. SPIE (1998)
10.1143/JJAP.41.1695 / Jpn. J. Appl. Phys. (2002)

Dates

Type	When
Created	20 years, 6 months ago (Feb. 10, 2005, 7:01 a.m.)
Deposited	2 years, 8 months ago (Dec. 19, 2022, 11:52 a.m.)
Indexed	6 months ago (Feb. 21, 2025, 5:34 a.m.)
Issued	21 years, 1 month ago (July 1, 2004)
Published	21 years, 1 month ago (July 1, 2004)
Published Online	21 years ago (July 29, 2004)
Published Print	21 years, 1 month ago (July 1, 2004)

Funders 0

None

BibTeX

@article{Ohmachi_2004, title={Media Technologies of 20 GB Single-Layer Rewritable Phase-Change Disc for HD DVD System}, volume={43}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.43.4978}, DOI={10.1143/jjap.43.4978}, number={7S}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Ohmachi, Noritake and Ashida, Sumio and Yusu, Keiichiro and Nakai, Tsukasa and Ichihara, Katsutaro and Nakamura, Naomasa}, year={2004}, month=jul, pages={4978} }

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