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:
Sep. 28, 2004
Filed:
May. 18, 2001
Applicant:
Inventors:
Keizo Hosoda, Kitasoma-gun, JP;
Yusuke Muraki, Nirasaki, JP;
Assignee:
Tokyo Electron Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/18242 ;
U.S. Cl.
CPC ...
H01L 2/18242 ;
Abstract
A tantalum oxide film is formed on a lower conductive film by vapor-deposition, and then is treated with active oxygen species. The treated film is annealed at a temperature lower than the crystallization temperature of tantalum oxide by 10 to 80° C. in an inert atmosphere. Subsequently, an upper conductive film is formed on the annealed tantalum oxide film.