Future Generation Magneto-Optical Media from a Manufacturing Point of View
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概要
- 論文の詳細を見る
Future-generation magneto-optical (MO) media are studied from a manufacturing point of view. The first priority to expand MO media application is to realize low-cost technology. Of course, high capacity and high-speed capability are necessary to compete with other memories. Non-overwriting media provide a major stream for higher capacity disks such as 2×(two times the memory capacity of the first-generation disk) and 3×, because of their cost-effective production line using fine-tuned, already-repaid sputtering machines. Concerning overwriting schemes, field modulation media are very attractive in terms of media cost and high-density recording, but is limited to a single-sided disk. Light intensity modulation has an advantage for high-speed overwriting. In this paper, I propose an attractive scheme for a drastic reduction of cost per M Byte. Field modulation writing and magnetic superresolution (MSR) readout are combined to increase memory density. More than 700 MB is possible on a 3.5-inch single-sided disk using a 780 nm current-generation laser.
- 社団法人応用物理学会の論文
- 1993-11-30
著者
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Ohta N
Optoelectronics Laboratory Hitachi Maxell Ltd.
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OHTA Norio
Optoelectronics Laboratory, Hitachi Maxell Ltd.
関連論文
- Highly Field Sensitive (150 Oe) Quadri-Valued Magnetooptical Media for High-Speed Overwriting
- Magneto-Optical Disk Structure with High Write / Erase Repeatability : MAGNETO-OPTICAL MEDIA III
- Write/Erase Cyclability of TbFeCo for Mark-Edge Recording
- Future Generation Magneto-Optical Media from a Manufacturing Point of View
- High Linear Density Recording of 0.3 μm Domain Length on Magneto-Optical Disk : DRIVE TECHNOLOGY II
- High Speed Overwritable Magneto-Optic Recording : DRIVE TECHNIQUE