ALEXANDRIA, Va., July 16 -- United States Patent no. 12,672,549, issued on June 30, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsinchu, Taiwan).
"Light sensor for package intrusion detection" was invented by Katherine H. Chiang (New Taipei City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Some embodiments relate to an integrated device including a first thin film transistor (TFT) arranged over a substrate; a second TFT arranged over the substrate; a metal barrier layer arranged over the second TFT, where the metal barrier layer is configured to block incident radiation from reaching the second TFT; a Fresnel lens arranged over the first TFT, where the Fresnel lens is configured to...