US Patent Issued to STMicroelectronics (Crolles 2) on July 15 for "Optical diffuser and its method of manufacture" (French Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,296, issued on July 15, was assigned to STMicroelectronics (Crolles 2) SAS (Crolles, France).

"Optical diffuser and its method of manufacture" was invented by Vincent Farys (Saint Martin d'Heres, France), Alain Inard (Saint Nazaire les Eymes, France) and Olivier Noblanc (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "Methods of manufacture of an optical diffuser. In one embodiment, an optical diffuser is formed by providing a wafer including a silicon slice of which an upper face is covered with a first layer made of a first material itself covered with a second layer made of a second selectively etchable material with respect to th...