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. 10, 2024
Filed:
Dec. 23, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kwangho Choi, Suwon-si, KR;
Jin-Young Kim, Seoul, KR;
Se Hwan Park, Yongin-si, KR;
Il Han Park, Suwon-si, KR;
Ji-Sang Lee, Iksan-si, KR;
Joonsuc Jang, Hwaseong-si, KR;
Abstract
A nonvolatile memory device includes a memory cell array having cell strings that each includes memory cells stacked on a substrate in a direction perpendicular to the substrate. A row decoder is connected with the memory cells through word lines. The row decoder applies a setting voltage to at least one word line of the word lines and floats the at least one word line during a floating time. A page buffer circuit is connected with the cell strings through bit lines. The page buffer senses voltage changes of the bit lines after the at least one word line is floated during the floating time and outputs a page buffer signal as a sensing result. A counter counts a number of off-cells in response to the page buffer signal. A detecting circuit outputs a detection signal associated with a defect cell based on the number of off-cells.