ALEXANDRIA, Va., June 18 -- United States Patent no. 12,327,798, issued on June 10, was assigned to INTERNATIONAL BUSINESS MACHINES Corp. (Armonk, N.Y.).
"Physical unclonable function" was invented by Kangguo Cheng (Schenectady, N.Y.), Eric Miller (Watervliet, N.Y.), Fee Li Lie (Albany, N.Y.), Gauri Karve (Cohoes, N.Y.), Marc A. Bergendahl (Rensselaer, N.Y.) and John Ryan Sporre (Albany, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, and devices related to authentication of chips using physical unclonable function (PUF) are disclosed. The semiconductor chip has a substrate having a major surface. The semiconductor chip has a boundary defined on the major surface in accordance with a ground rule...