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:
Oct. 20, 2015
Filed:
Jan. 20, 2014
International Business Machines Corporation, Armonk, NY (US);
Kai D. Feng, Hopewell Junction, NY (US);
Wai-Kin Li, Beacon, NY (US);
Ping-Chuan Wang, Hopewell Junction, NY (US);
Zhijian J. Yang, Stormville, NY (US);
GLOBALFOUNDIRES INC., Grand Cayman, KY;
Abstract
A Physical Unclonable Function (PUF) semiconductor device includes a semiconductor substrate, and a well formed in the semiconductor substrate. The well includes a first region having a first concentration of ions, and at least one second region having a second concentration that is less than the first concentration. First and second FETs are formed on the well. The first and second FETs have a voltage threshold mismatch with respect to one another based on the first region and the at least one second region.