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. 13, 2022
Filed:
Apr. 01, 2020
Applicant:
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Inventors:
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H01L 21/8238 (2006.01); H03K 19/096 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3278 (2013.01); H01L 21/823807 (2013.01); H03K 19/0963 (2013.01); H04L 9/0866 (2013.01); H04L 2209/12 (2013.01);
Abstract
A PUF generator includes a difference generator circuit with first and second transistors having a first predetermined VT. The difference generator circuit is configured to provide a first output signal for generating a PUF signature based on respective turn on times of the first and second transistors. An amplifier includes a plurality of transistors having a second predetermined VT. The amplifier is configured to receive the first output signal and output the PUF signature.