Method of forming a data storage medium and data storage device by congruent sublimation
US4621032A · kind A · utility
9Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1985 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Jul 29, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/938
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is an optical data storage device and a method of making the device. The device has a thin film of a multi-component, phase changeable, chalcogenide material. The thin film is prepared by vacuum deposition of a substantially non-convecting, multi-component, chalcogenide containing first source. The multicomponent source is converted to a non-condensed state, and the non-condensed material is deposited onto the substrate to form a deposit having substantial source/deposit compositional equivalence and the substantial absence of concentration gradients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.