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:
Oct. 24, 2023
Filed:
May. 31, 2021
Winbond Electronics Corp., Taichung, TW;
Koying Huang, San Jose, CA (US);
Winbond Electronics Corp., Taichung, TW;
Abstract
In an aspect, the memory device includes not limited to a memory array, a leakage current verifying circuit, and a controller. The controller is configured to perform an erase operation for a first column of memory cells connected to a first WL, set a verify condition including a leakage current threshold, perform a leakage current verifying operation for the first column of the memory cells by comparing a leakage current of a cell of the first column of the memory cells to the leakage current threshold, detect a failure of the first column in response to a cell having the leakage current being above the leakage current threshold, and perform a post-program operation to repair the failure of the first column of the memory cells.