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:
Jul. 21, 2026
Filed:
Apr. 24, 2024
Applicant:
Yangtze Memory Technologies Co., Ltd., Wuhan, CN;
Inventors:
Assignee:
YANGTZE MEMORY TECHNOLOGIES CO., LTD., Wuhan, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10B 43/10 (2023.01); H10B 41/10 (2023.01); H10B 41/27 (2023.01); H10B 41/35 (2023.01); H10B 43/27 (2023.01); H10B 43/35 (2023.01); H10W 20/00 (2026.01); H10W 20/41 (2026.01); H10W 20/42 (2026.01);
U.S. Cl.
CPC ...
H10W 20/435 (2026.01); H10B 41/10 (2023.02); H10B 41/27 (2023.02); H10B 41/35 (2023.02); H10B 43/10 (2023.02); H10B 43/27 (2023.02); H10B 43/35 (2023.02); H10W 20/056 (2026.01); H10W 20/089 (2026.01); H10W 20/095 (2026.01); H10W 20/42 (2026.01);
Abstract
In an example of the present disclosure, a three-dimensional (3D) memory device includes a memory array structure and a staircase structure. The staircase structure includes a plurality of stairs extending along a first lateral direction. The plurality of stairs include a stair including a conductor portion on a top surface of the stair. The conduction portion is connected to the memory array structure. Widths of conductor portions are different in a second lateral direction perpendicular to the first lateral direction.