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. 09, 2019
Filed:
Nov. 17, 2017
Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;
Ningbo Semiconductor International Corporation, Ningbo, CN;
Ji Guang Zhu, Shanghai, CN;
Hai Ting Li, Shanghai, CN;
SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION, Shanghai, CN;
NINGBO SEMICONDUCTOR INTERNATIONAL CORPORATION, Ningbo, CN;
Abstract
A method for manufacturing an interconnect structure includes providing a substrate structure including a substrate and a dielectric layer on the substrate, the dielectric layer having an opening extending to the substrate. The method further includes forming a mask layer on at least one portion of the dielectric layer, forming a metal layer filling the opening and covering portions of dielectric layer not covered by the mask layer, removing the mask layer, and planarizing the metal layer so that an upper surface of a remaining portion of the metal layer is flush with an upper surface of the dielectric layer. The method can mitigate the warping problems of the substrate associated with the fabrication of the interconnect structure.