ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,255, issued on April 15, was assigned to Raytheon Co. (Arlington, Va.).
"Thin film obscurant for microelectronics" was invented by Michael K. Burkland (Tucson, Ariz.), Sean P. Kilcoyne (Lompoc, Calif.) and Peter Bellus (Tucson, Ariz.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and apparatus for an assembly having a first wafer including bulk material and a layer having microelectronics and a wafer with a deposited thin film which is bonded to the first wafer such that the reflected film is embedded within the composed assembly. The reflector wafer can include a handle wafer and a thin film having reflectance characteristics to prevent imag...