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:
Aug. 02, 2016
Filed:
May. 21, 2015
Semiconductor Manufacturing International (Beijing) Corporation, Beijing, CN;
Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;
Hao Deng, Shanghai, CN;
Abstract
A method for forming an interconnect device is provided by the present disclosure. The method includes providing a dielectric layer on a substrate, forming openings in the dielectric layer to expose a portion of a surface of the substrate at a bottom of each opening and forming a metal layer to fill up the openings. The method also includes forming a semiconductor cover layer on the metal layer and on the dielectric layer, and performing a thermal annealing reaction to convert portions of the semiconductor cover layer that are on the metal layer into a metal capping layer. The method further includes performing a nitridation process on the metal capping layer and a remaining semiconductor cover layer to convert the metal capping layer into a metal nitride capping layer and the remaining semiconductor cover layer into a semiconductor nitride layer.