The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2021
Filed:
Sep. 17, 2019
University of Florida Research Foundation, Inc., Gainesville, FL (US);
Mark M. Tehranipoor, Gainesville, FL (US);
Haoting Shen, Tallahassee, FL (US);
Nidish Vashistha, Gainesville, FL (US);
Navid Asadizanjani, Gainesville, FL (US);
Mir Tanjidur Rahman, Gainesville, FL (US);
Damon Woodard, Newberry, FL (US);
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED, Gainesville, FL (US);
Abstract
A method of detecting hardware Trojans in an IC includes providing a golden IC layout data set or SEM image data taken at long dwelling time on an active area of the golden IC after polishing it from the backside. Next, the IC under authentication (IUA) sample is prepared for fast SEM imagining (shorter dwelling time) after backside thinning. Next step is to perform image processing on the IUA's SEM image, which includes histogram equalization with noise filtering using Gaussian and Median filters. In the last step, the IUA sample data with the shorter dwelling time is compared with the golden IC layout data or the golden image data from high quality (longer dwelling time) SEM scanning process. At the end the result of the comparison is used to identify hardware Trojans.