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:
Jan. 27, 2015
Filed:
Aug. 03, 2012
Howard H. Chi, Littleton, MA (US);
Haitao O. Dai, Boston, MA (US);
Kai D. Feng, Hopewell Junction, NY (US);
Donald J. Papae, Hopewell Junction, NY (US);
Howard H. Chi, Littleton, MA (US);
Haitao O. Dai, Boston, MA (US);
Kai D. Feng, Hopewell Junction, NY (US);
Donald J. Papae, Hopewell Junction, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A FET pair based physically unclonable function (PUF) circuit with a constant common mode voltage and methods of use are disclosed. The circuit includes a first n-type field effect transistor (NFET) and a second NFET. The circuit also includes a first load resistor coupled to the first NFET by a first p-type field effect transistor (PFET) and a second load resistor coupled to the second NFET by a second PFET. The circuit further comprises a closed loop, wherein the closed loop creates a constant common mode voltage.