ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,540, issued on April 8, was assigned to SOITEC (Bernin, France).
"Method for manufacturing a substrate" was invented by Pascal Guenard (Froges, France), Marcel Broekaart (Theys, France) and Thierry Barge (Bernin, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a substrate includes the following steps: (a) providing a support substrate with a first coefficient of thermal expansion, having on one of its faces a first plurality of trenches parallel to each other in a first direction, and a second plurality of trenches parallel to each other in a second direction; (b) transferring a useful layer from a donor substrate to...