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:
Apr. 13, 2021
Filed:
Feb. 25, 2020
Winbond Electronics Corp., Taichung, TW;
Hiroki Murakami, Taichung, TW;
Winbond Electronics Corp., Taichung, TW;
Abstract
A protection method is provided to make it difficult to reverse engineer operational information. The present invention provides a protection method for preventing reverse engineering, including: generating an expected value during normal operation; monitoring voltage waveforms at monitoring points of the semiconductor integrated circuit; comparing a measured value generated in the monitored voltage waveforms with the expected value; determining whether reverse engineering is taking place or not based on comparison results; and when reverse engineering is taking place, controlling the semiconductor integrated circuit to run in a protection mode, which different from its normal operation.