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. 06, 2021
Filed:
Jan. 15, 2020
Winbond Electronics Corp., Taichung, TW;
Kaoru Mori, Kanagawa, JP;
Winbond Electronics Corp., Taichung, TW;
Abstract
An efuse circuit adapted for a memory device is provided. The efuse circuit includes a plurality of efuse sets and a control circuit. Each of the plurality of efuse sets includes a plurality of efuses. When a power is turned on, the control circuit detects each of the plurality of efuse sets to generate a detection signal. The control circuit determines whether the efuses of each of the efuse sets are burned according to the detection signal to determine whether to perform a burn operation on the plurality of efuses. When the control circuit determines that at least one of the plurality of efuses is a burned efuse according to the detection signal, the control circuit latches a write data of at least one burned efuse and disables an overwrite operation on the efuse set to which the at least one burned efuse belongs.