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:
Mar. 29, 2005
Filed:
Nov. 13, 2003
Satoshi Doi, Kagoshima, JP;
Satoshi Doi, Kagoshima, JP;
NEC LCD Technologies, Ltd., Kawasaki, JP;
Abstract
A method of fabricating a semiconductor device including an interconnection is provided. The method is composed of covering a substrate with a metal film stack including a lower refractory metal film over the substrate, a lower protective layer of a first compound including metal disposed on an upper surface of the lower refractory metal film, a core metal film of the metal on an upper surface of the lower protective layer, an upper protective layer of a second compound including the metal disposed on an upper surface of the core metal film, and an upper refractory metal film disposed on an upper surface of the upper protective layer, patterning the metal film stack; and forming a side protective layer of a third compound including the metal on a side of the patterned core metal film.