Information recording medium and method for recording information thereon
US6307826A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | May 31, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/24
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording medium using a substrate having light transmittancy permitting high density recording to be achieved and a recording method permitting such an information recording medium using a substrate having light transmittancy to be recorded in a high density are provided. The information recording medium is formed by layering an ITO film and EB resist on a transparent insulating substrate formed of a glass material having light transmittancy. At the time of recording information, as the ITO film is set at a ground potential, an electron beam having recording information is irradiated upon a surface of the EB resist for a prescribed scanning to perform electron beam exposure, and pits corresponding to the information to be recorded are formed at the exposed positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.