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:
May. 19, 2026
Filed:
Oct. 17, 2023
Macronix International Co., Ltd., Hsinchu, TW;
Ya-Jui Lee, Taichung City, TW;
Kuan-Fu Chen, Taipei City, TW;
MACRONIX International Co., Ltd., Hsinchu, TW;
Abstract
A memory device and a programming method thereof are provided. The memory device has multiple word lines and a dummy word line set. A word line is selected from the word lines and is applied with a program voltage, and unselected word lines and the dummy word line set are applied with a pass voltage. After programming the selected word line, a program verification is performed on the selected word line. When the selected word line passes the program verification, a high bound and/or low bound check for the threshold voltage distribution of at least one of the dummy word lines is performed. When at least one of the dummy word lines fails in the high bound and/or low bound check, the status of the selected word line is shown as fail or a flag is set thereto.