US Patent Issued to GlobalFoundries U.S. on May 5 for "Chip structure with steganographic fill shape pattern" (California Inventor)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,619,810, issued on May 5, was assigned to GlobalFoundries U.S. Inc. (Malta, N.Y.).

"Chip structure with steganographic fill shape pattern" was invented by Osamu S. Nakagawa (Redwood City, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A disclosed chip structure includes a coded pattern of dummy fill shapes with steganographically embedded information. The coded pattern is in a specific area of the chip, is a modified instance of a known pattern, and is decodable into a binary integer based on observable differences between the coded pattern and the known pattern at corresponding locations with the patterns. The location of the specific area contain...