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. 27, 2021
Filed:
Sep. 03, 2019
Semiconductor Manufacturing International (Beijing) Corporation, Beijing, CN;
Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;
Huanyun Zhang, Shanghai, CN;
Jian Wu, Shanghai, CN;
Abstract
A method for fabricating a semiconductor device includes forming an initial fin structure on a semiconductor substrate; and forming a plurality of first dummy gate structures and a second dummy gate structure across the initial fin structure. The second dummy gate structure is formed between two adjacent first dummy gate structures, and includes a second dummy-gate-structure body. The method also includes forming a trench in the initial fin structure by etching and removing the second dummy-gate-structure body and a portion of the initial fin structure under the second dummy-gate-structure body. The trench divides the initial fin structure to form two fin structures. The method further includes forming a trench isolation layer in the trench and an interlayer dielectric layer on the plurality of first dummy gate structures. The interlayer dielectric layer covers a portion of the semiconductor substrate and the two fin structures adjacent to the trench.