ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,104, issued on Jan. 20, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"MEMS speaker and method of microfabrication of such a speaker" was invented by Romain Liechti (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A MEMS speaker suitable for generating audible sound waves, includes a bimetallic strip actuation system extending in a first plane and an amplification capsule including a membrane extending in a second plane, parallel to the first plane, the membrane including a rigid interior zone and a flexible exterior zone, and a rigid coupling wall, fastened at the periphery of the bimetallic...