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. 08, 2025
Filed:
Aug. 12, 2022
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
A method includes forming first-type deep trenches and second-type deep trenches in a substrate, in which the first-type deep trenches have a first lengthwise direction along a first direction and the second-type deep trenches have a second lengthwise direction along a second direction; forming a capacitor structure over the substrate and in the first-type deep trenches and the second-type deep trenches, in which the capacitor structure includes a first metallic electrode layer, a node dielectric layer over the first metallic electrode layer, and a second metallic electrode layer over the node dielectric layer; and forming a first metal via over the capacitor structure and in contact with the second metallic electrode layer of the capacitor structure, in which a length of the first metal via is greater than a width of the first metal via from a top view.