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:
Nov. 20, 2018
Filed:
Aug. 26, 2016
Semiconductor Manufacturing International (Beijing) Corporation, Beijing, CN;
Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;
Abstract
In accordance with various embodiments of the disclosed subject matter, a shallow trench isolation structure and a fabricating method thereof are provided. The method for forming the shallow trench isolation structure may include: providing a semiconductor substrate; forming a shallow trench in the semiconductor substrate; forming a first insulating layer on a surface of the semiconductor substrate and in the shallow trench, a portion of the first insulating layer in the shallow trench includes an opening; etching the first insulating layer to increase a width of the opening; after etching the first insulating layer, performing a plasma treatment to an exposed surface of the first insulating layer; after the plasma treatment, cleaning the surface of the first insulating layer; and after cleaning the surface of the first insulating layer, filling a second insulating layer into the shallow trench.