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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.:

US 12302558 B1

PDFFull Text
Date of Patent:
May. 13, 2025

Filed:

Dec. 22, 2021

Three-dimensional memory and manufacturing method thereof

Applicant:

Yangtze Memory Technologies Co., Ltd., Wuhan, CN;

Inventors:

Zhong Zhang, Wuhan, CN;

Yuhui Han, Wuhan, CN;

Cuicui Kong, Wuhan, CN;

Kun Zhang, Wuhan, CN;

Assignee:

YANGTZE MEMORY TECHNOLOGIES CO., LTD., Wuhan, CN;

Attorney:

BAYES PLLC

Primary Examiner:

Syed I Gheyas

Assistant Examiner:

Casey Paul Boatman

Int. Cl.
CPC ...
H10B 41/44 (2023.01); H10B 41/20 (2023.01); H10B 43/10 (2023.01); H10B 43/20 (2023.01);
U.S. Cl.
CPC ...
H10B 41/44 (2023.02); H10B 41/20 (2023.02); H10B 43/10 (2023.02); H10B 43/20 (2023.02);
Abstract

A three-dimensional memory includes a stack structure, a dummy structure and a gate line slit. The stack structure includes gate line layers and isolation layers stacked alternatively in the vertical direction. The dummy structure includes a first dummy section and a second dummy section. The gate line slit has one end extending into a gap formed by at least one of the first dummy section or the second dummy section. At least one of the first dummy section and the second dummy section partially overlaps a projection of the gate line slit onto the horizontal plane to realize connection between the dummy structure and the gate line slit.

Find Patent Forward Citations

Zhang, Zhong. (2025). Three-dimensional memory and manufacturing method thereof (U.S. Patent No. 12302558). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12302558

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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