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:
Dec. 09, 2025
Filed:
Apr. 30, 2024
Macronix International Co., Ltd., Hsinchu, TW;
MACRONIX INTERNATIONAL CO., LTD., Hsinchu, TW;
Abstract
A scan chain circuit and an operation method thereof are provided. The scan chain circuit includes a plurality of scan chain units. Each of the scan chain units includes a plurality of input scan flip-flop (SFF) and a comparison circuit. After a plurality of input bit values are operated by a logic circuit, a plurality of actual operation result bit values are obtained. The comparison circuit is used to receive the actual operation result bit values and a plurality of predetermined operation result bit values. Each of the predetermined operation result bit values is each of a plurality of predetermined operation results after each of the input bit values is operated by the logic circuit. The comparison circuit compares the actual operation bit values and the predetermined operation result bit values, and then outputs a bits comparison result bit value.