Optical information memory medium recording and erasing information including gallium and antimony
US5072423A · kind A · utility
2Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1991 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Apr 4, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Recording and erasing optical information can be done by using an alloy film capable of forming two stable crystalline states differing in crystal texture and optical characteristics by being irradiated with optical energies under different conditions. The thin memory film preferably includes not more than 60 atom % of Gallium (Ga) and not less than 40 atom % of Antimony (Sb).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.