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:
Mar. 18, 2025
Filed:
Mar. 09, 2023
Applicant:
Macronix International Co., Ltd., Hsinchu, TW;
Inventors:
Chih-Wei Hu, Miaoli County, TW;
Chih-Chang Hsieh, Hsinchu, TW;
Assignee:
MACRONIX International Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 17/00 (2006.01); G11C 16/10 (2006.01); G11C 16/26 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3481 (2013.01); G11C 16/102 (2013.01); G11C 16/26 (2013.01);
Abstract
A memory device, such as a 3D AND type flash memory, and a compensation method of data retention thereof are provided. The compensation method includes the following. A reading operation is performed on each of a plurality of programmed memory cells of the memory device. Whether a charge loss phenomenon occurs in the programmed memory cells is determined through the reading operation to set the programmed memory cells to be charge loss memory cells. A refill program operation is performed on the charge loss memory cells.