Media Technologies of 20 GB Single-Layer Rewritable Phase-Change Disc for HD DVD System
スポンサーリンク
概要
- 論文の詳細を見る
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.
- 2004-07-15
著者
-
Ashida Sumio
Storage Materials And Devices Lab. Corporate Research And Development Center Toshiba Corporation
-
Ichihara Katsutaro
Storage Materials And Devices Lab. Corporate Research And Development Center Toshiba Corporation
-
Nakamura Naomasa
Optical Disc Development Department Core Technology Center Digital Media Network Company Toshiba Cor
-
NAKAI Tsukasa
Storage Materials and Devices Laboratory, Corporate Research and Development Center, Toshiba Corpora
-
OHMACHI Noritake
Optical Disc Development Department, Core Technology Center, Digital Media Network Company, Toshiba
-
Yusu Keiichiro
Storage Materials And Devices Laboratory Corporate Research And Development Center Toshiba Corp.
-
Nakamura Naomasa
Optical Disc Development Department, Core Technology Center, Digital Media Network Company, Toshiba Corporation, 8 Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa 235-8522, Japan
-
Ohmachi Noritake
Optical Disc Development Department, Core Technology Center, Digital Media Network Company, Toshiba Corporation, 8 Shinsugita-cho, Isogo-ku, Yokohama-shi, Kanagawa 235-8522, Japan
-
Ichihara Katsutaro
Storage Materials and Devices Lab., Corporate Research and Development Center, Toshiba Corporation, 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 210-8582, Japan
-
Ashida Sumio
Storage Materials and Devices Lab., Corporate Research and Development Center, Toshiba Corporation, 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 210-8582, Japan
-
Yusu Keiichiro
Storage Materials and Devices Lab., Corporate Research and Development Center, Toshiba Corporation, 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 210-8582, Japan
-
Nakai Tsukasa
Storage Materials and Devices Lab., Corporate Research and Development Center, Toshiba Corporation, 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 210-8582, Japan
関連論文
- High-Density Phase-Change Optical Disc with Low-to-High Signal Direction
- High-Density Recording Capability of Five-Layered Phase-Change Optical Disc
- Super-Resolution Effect of Semiconductor-Doped Glass
- Optical Properties of Au-SiO_2 Composite Films : a Possible Candidate as an Element in Phase-Change Optical Media
- Advanced Phase Change Media for Blue Laser Recording of 18 GB Capacity for 0.65 Numerical Aperture and 30 GB Capacity for 0.85 Numerical Aperture
- Recording Characteristics of Ge Doped Eutectic SbTe Phase Change Discs With Various Compositions and Its Potential for High Density Recording
- Dual-Layer Rewritable Phase-Change Recording Media for HD DVD System
- Media Technologies of 20GB Single-Layer Rewritable Phase-Change Disc for HD DVD System
- An Approach to Eliminate Initializing Process from Manufacturing of Phase Change Optical Recording Media
- Experimental Examination of an Overwrite Method Utilizing Leakage Field Modulation by the Laser Power Level : Media
- Numerical Analysis of Leakage Field Modulation for a Novel Direct Overwrite Medium : Media
- Experimental Examination of an Overwrite Method Utilizing Leakage Field Modulation by the Laser Power Level
- Computational Analysis of Cross-Erase Phenomenon for High-Density Phase-Change Recording
- Computational Analysis of Cross-Erase Phenomenon for High-Density Phase-Change Recording
- High-Speed Deposition of New Low-Refractive-Index Dielectric Film “SiOC” for Rewritable HD DVD Media
- Dual-Layer Rewritable Phase-Change Recording Media for HD DVD System
- Media Technologies of 20 GB Single-Layer Rewritable Phase-Change Disc for HD DVD System
- High-Speed Recording Media for HD DVD Rewritable System