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. 20, 2025
Filed:
Feb. 28, 2024
Yangtze Memory Technologies Co., Ltd., Wuhan, CN;
YANGTZE MEMORY TECHNOLOGIES CO., LTD., Wuhan, CN;
Abstract
A three-dimensional (3D) memory device includes a staircase, a plurality of contacts, a plurality of groups of support structures, and a fourth support structure between adjacent groups of support structures through the staircase. The plurality of groups of support structures are arranged in a first direction. Each of the groups of support structures includes three support structures. Projections of the three support structures form a triangular shape in a plane parallel to the first direction. The plurality of contacts each is surrounded by a respective group. A projection of one of the contacts overlaps with the triangular shape of the respective group.