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:
Jun. 17, 2025
Filed:
Aug. 15, 2022
Changxin Memory Technologies, Inc., Hefei, CN;
Yongxiang Li, Hefei, CN;
Min-Hui Chang, Hefei, CN;
CHANGXIN MEMORY TECHNOLOGIES, INC., Hefei, CN;
Abstract
A semiconductor structure and a manufacturing method thereof are provided. The manufacturing method includes: providing a substrate; forming an ion implantation area in the substrate, an upper surface of the ion implantation area having a distance from an upper surface of the substrate; forming an initial word line trench in the substrate, the initial word line trench extending from the upper surface of the substrate into the ion implantation area; widening the initial word line trench to form a word line trench, a width of a bottom of the word line trench being greater than a minimum width of the word line trench.