High colour diamond layer
US7964280B2 · kind B2 · utility
7Cited by
12References
28Claims
0Family size
Inventors
Key dates
| Filing date | Jun 22, 2006 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | May 1, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of producing CVD diamond having a high color, which is suitable for optical applications, for example. The method includes adding a gaseous source comprising a second impurity atom type to counter the detrimental effect on colour caused by the presence in the CVD synthesis atmosphere of a first impurity atom type. The described method applies to the production of both single crystal diamond and polycrystalline diamond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.