System and method for producing synthetic diamond
AssigneeApollo Diamond, Inc.
InventorsRobert C. Linares, Patrick J. Doering
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Abstract
Synthetic monocrystalline diamond compositions having one or more monocrystalline diamond layers formed by chemical vapor deposition, the layers including one or more layers having an increased concentration of one or more impurities (such as boron and/or isotopes of carbon), as compared to other layers or comparable layers without such impurities. Such compositions provide an improved combination of properties, including color, strength, velocity of sound, electrical conductivity, and control of defects. A related method for preparing such a composition is also described, as well as a system for use in performing such a method, and articles incorporating such a composition.
Claims42
A method of forming synthetic monocrystalline diamond comprising the steps of:
- a) growing diamond by a chemical vapor deposition process in which one or more impurities are controlled in one or more diamond layers in order to provide improved properties;
- b) growing the diamond to an overall thickness of at least about 20 microns;
- and
- c) optionally, removing the grown diamond,
- wherein the step of controlling the impurity comprises lowering the nitrogen concentration to substantially below normal levels while maintaining the isotope concentration at normal or near-normal levels.
Dependencies are inferred from the claim text.