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:
Mar. 31, 2022
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Pei Ying Lai, Hsinchu, TW;
Chia-Wei Hsu, Taipei, TW;
Tsung-Da Lin, Pingtung County, TW;
Chi On Chui, Hsinchu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
A method for forming a semiconductor structure is provided. The method includes forming a first fin structure over a first region of a substrate and forming a second fin structure over a second region of a substrate, forming a first gate dielectric layer around the first fin structure and forming a second gate dielectric layer around the second fin structure, forming a barrier layer over the first gate dielectric layer, treating the substrate with a first fluorine-containing gas, forming a work function layer over the second gate dielectric layer after treating the substrate with the first fluorine-containing gas, and treating the substrate with a second fluorine-containing gas after forming the work function layer over the second gate dielectric layer.