Process for manufacturing an optical recording medium
US4889746A · kind A · utility
22Cited by
7References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/24324
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium using a recording layer of an alloy taking two different crystalline states exhibiting different reflectivities is preferably manufactured by depositing a plurality of layers, each of which consists essentially of an element or an intermetallic compound, i.e. a material having a lower crystallizable temperature, to form a recording layer having a desired average chemical composition, while heating a substrate on which the recording layer is being deposited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.