ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,211,685, issued on Jan. 28, was assigned to Lam Research Corp. (Fremont, Calif.).
"Joining techniques for composite ceramic bodies" was invented by Karl Frederick Leeser (West Linn, Ore.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In joining composite ceramic bodies, at least one ceramic body is a compositionally graded with varying concentrations between two or more ceramic materials. The compositionally graded ceramic body terminates at an interfacial layer that is substantially composed of a single ceramic material. The compositionally graded ceramic body is joined to another ceramic body that may also be compositionally graded or made of a single...