Growing and Releasing Diamonds.
Patent, Filed 28 Jan 94, patented 24 Dec 96,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A process for making diamond and diamond products includes the steps of implanting ions in a diamond substrate to form a damaged layer of nondiamond carbon below the top surface of the substrate, heating the substrate to about 600-1200 deg C. growing diamond on the top surface of the heated substrate by chemical vapor deposition, and electrochemically etching the damaged layer to separate the grown diamond from the substrate along the diamond layer. The diamond product consists of a first diamond layer and a second diamond layer attached to the first layer. The second layer contains damage caused by ions traversing the second layer.
- Inorganic Chemistry
- Manufacturing and Industrial Engineering and Control of Production Systems