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. 23, 2019
Filed:
Apr. 25, 2016
Magnachip Semiconductor, Ltd., Cheongju-si, KR;
Yong Sup Lee, Cheongju-si, KR;
MagnaChip Semiconductor, Ltd., Cheongju-si, KR;
Abstract
A circuit for preventing forgery of semiconductor chip includes a driving signal protection unit and a control unit. The driving signal protection unit configured to include at least one protection wire protecting a driving wire having driving signals flow therethrough. The control unit configured to generate a first security code and a second security code. The control unit is further configured to compare the first security code that passes through the driving signal protection unit and the second security code that bypasses the driving signal protection unit to detect tampering at the at least one protection wire, and to control operation of the semiconductor chip.