US Patent Issued to Taiwan Semiconductor Manufacturing on March 18 for "Silicon photonic device with backup light paths" (California Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,745, issued on March 18, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).

"Silicon photonic device with backup light paths" was invented by Weiwei Song (San Jose, Calif.), Stefan Rusu (Sunnyvale, Calif.), Chan-Hong Chern (Palo Alto, Calif.) and Chih-Chang Lin (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device include: a first bus waveguide; a first silicon ring optically coupled to the first bus waveguide; a backup silicon ring optically coupled to the first bus waveguide; a first heater and a second heater configured to heat the first silicon ring and the backup silicon ring, respe...