ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,906, issued on April 21.
"Diamond growth on composite substrate" was invented by John Michael Pinneo (Sonora, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes inserting a composite substrate into a reactor, where the composite substrate has a transverse coefficient of thermal expansion matching the transverse coefficient of thermal expansion of diamond throughout the range of 20 to 600 deg. C.; growing a layer of diamond upon a composite substrate via microwave plasma chemical vapor deposition. The composite substrate includes a deposition layer embedded within a base layer that is at least 6,000 times thicker than the deposi...