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:
Mar. 17, 2026
Filed:
Aug. 11, 2022
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Yu-Chi Lin, Hsinchu, TW;
Yu-Ting Weng, Taichung, TW;
Chiung Wen Hsu, Tainan, TW;
Chao-Cheng Chen, Hsin-Chu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A semiconductor device and a method of fabricating a semiconductor device are provided herein. The semiconductor device includes a substrate; a fin structure arranged on the substrate and including a ridge portion and a bottom portion between the ridge portion and the substrate, wherein the ridge portion comprises a channel region and a fin region between the channel region and the bottom portion, a critical dimension of the bottom portion in a cross-fin direction is gradually increased toward the substrate to twice or more of a critical dimension of the channel region in the cross-fin direction; a metal gate structure disposed on the fin structure extending the cross-fin direction; and an epitaxy region disposed beside the metal gate structure in a lengthwise direction of the fin structure and connected to the fin structure.