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:
Dec. 23, 2025
Filed:
Sep. 09, 2021
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Meng-Han Lin, Hsinchu, TW;
Chia-En Huang, Xinfeng, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A memory system includes a memory array comprising a plurality of memory cells. Each of the memory cells includes a transistor coupled to a first capacitor and a second capacitor in series, respectively. The memory system includes an authentication circuit operatively coupled to the memory array. The authentication circuit is configured to generate a Physically Unclonable Function (PUF) signature based on respective logic states of the plurality of memory cells, and wherein the logic state of each of the plurality of memory cells is determined based on a preceding breakdown of either the corresponding first capacitor or second capacitor.