ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,218,479, issued on Feb. 4.

"Photonic integrated circuits with controlled collapse chip connections" was invented by SeungJae Lee (Pasadena, Calif.), Brett Sawyer (Pasadena, Calif.), Chia-Te Chou (Brea, Calif.), Jerry Byrd (Shadow Hills, Calif.) and Hooman Abediasl (Thousand Oaks, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are directed to a photonic device that includes a first substrate defining a surface and a trench forming a depression along a portion of the surface, and a second substrate coupled with the surface and extending from the surface to form a raised portion around the trench. The photonic device can also include a la...