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. 24, 2024
Filed:
May. 31, 2023
Yangtze Memory Technologies Co., Ltd., Wuhan, CN;
Yali Song, Wuhan, CN;
Xiangnan Zhao, Wuhan, CN;
Yuanyuan Min, Wuhan, CN;
Jianquan Jia, Wuhan, CN;
Kaikai You, Wuhan, CN;
YANGTZE MEMORY TECHNOLOGIES CO., LTD., Wuhan, CN;
Abstract
A three-dimensional (3D) memory device includes a first set of word lines coupled to first memory cells, a second set of word lines coupled to second memory cells, an interface dummy word line between the first and send sets of word lines, and a peripheral circuit coupled to the first and send memory cells. The peripheral circuit is configured to apply a first voltage to the interface dummy word line in a first pre-charge period when programming a first selected memory cell in the first memory cells, and apply a second voltage lower than the first voltage to the interface dummy word line in a second pre-charge period when programming a second selected memory cell in the second memory cells. Programing the first selected memory cell is earlier than the second selected memory cell.