US Patent Issued to XILINX on Feb. 24 for "Multi-die physically unclonable function entropy source" (New Mexico, Alabama Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,564,062, issued on Feb. 24, was assigned to XILINX INC. (San Jose, Calif.).

"Multi-die physically unclonable function entropy source" was invented by James David Wesselkamper (Albuquerque, N.M.), Thomas LeBoeuf (Sandia Park, N.M.), James Bertil Anderson (Madison, Ala.) and Jason Moore (Albuquerque, N.M.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed circuit arrangements include a physically unclonable function (PUF) entropy source having passive circuit elements and active circuit elements. A first die has one or more metal layers and an active layer, and the passive circuit elements are disposed in the one or more metal layers. A second die h...