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:
Oct. 14, 2025
Filed:
Mar. 05, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A ferroelectric memory device and a memory array are provided. The ferroelectric memory device includes a word line; a pair of source/drain electrodes, a channel layer, a work function layer and a ferroelectric layer. The source/drain electrodes are disposed at opposite sides of the word line, and elevated from the word line. The channel layer has a bottom planar portion and wall portions. The bottom planar portion extends along a top surface of the word line, and opposite ends of the bottom planar portion are connected to sidewalls of the source/drain electrodes through opposite ones of the wall portions. The work function layer is electrically connected to the word line, and extends along the bottom planar portion and the wall portions of the channel layer. The ferroelectric layer separates the channel layer from the work function layer.