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:
Jul. 12, 2022
Filed:
May. 18, 2020
Industry-academic Cooperation Foundation, Yonsei University, Seoul, KR;
Sungho Kang, Seoul, KR;
Young Woo Lee, Seoul, KR;
Abstract
The present exemplary embodiments provide a security circuit which senses a micro probe attack by changing both ends of a wire of a shield to be a high impedance state to change a connection state of the wire and analyzing a test signal reflected by the connected wire path, or senses a focused ion beam attack by changing both ends of a wire of a shield to be a high impedance state to change a connection state of the wire and analyzing a test signal which passes through a selected wire for every group, or blocks a physical approach by changing an accessible signal path to be a high impedance state when an external attack is detected by the detection circuit.