Hybrid disc, method and system of forming the disc
US8623486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2009 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Dec 3, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hybrid data disc, method and system of forming the disc are disclosed. The hybrid disc includes a first substrate structure bonded to a second substrate structure, and at least two data layers of different formats for access from different sides of the disc. One example provides the second substrate structure with a second substrate that has at least one curable material layer on each side of the second substrate, and the curable material has a property that results in shrinkage associated with curing of the material. Other examples provide a data disc with different stacking ring configurations, a thinner substrate and substrate structures of opposite curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.