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:
Aug. 20, 2024
Filed:
Jul. 28, 2023
Taiwan Semiconductor Manfuacturing Company, Ltd., Hsinchu, TW;
Meng-Han Lin, Hsinchu, TW;
Chia-En Huang, Xinfeng, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
A method for fabricating memory devices includes forming a first portion of a memory device that includes a first device portion and one or more first interface portions. The first device portion includes a plurality of first memory strings, each of which includes a plurality of first memory cells vertically separated from one another. Each of the one or more first interface portions, laterally abutted to one side of the first device portion, includes a plurality of first word lines (WLs). The method further includes forming a plurality of first source lines (SLs) and a plurality of first bit lines (BLs) in the first device portion. The method further includes forming a first seal ring structure that laterally encloses both the first device portion and the first interface portion concurrently with forming the pluralities of SLs and BLs.