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. 12, 2005
Filed:
Mar. 25, 2003
Kiwamu Adachi, Kanagawa, JP;
Satoshi Horiuchi, Kanagawa, JP;
Tetsuya Yukimoto, Chiba, JP;
Sony Corporation, , JP;
CV Research Corporation, , JP;
Abstract
A film deposition process for depositing an amorphous metal oxide film, for example, an amorphous tantalum oxide film, and a film treatment process for improving the film quality of the amorphous tantalum oxide film in the state in which an amorphous state of the amorphous metal oxide film is maintained by a high-density plasma radiation treatment based upon ion and radical reactions, and which contains at least oxygen at an ion current density higher than 5 mA/cmare carried out, whereby a low-temperature treatment in the whole process is made possible. In addition, since the amorphous metal oxide film, which is excellent in film quality, can be deposited, the amorphous metal oxide film can be made high in reliability and can be produced inexpensively. The amorphous tantalum oxide film, which is excellent in film quality, can be manufactured inexpensively by a low-temperature treatment. Also, when a capacitance element having an amorphous metal oxide film and a semiconductor device are manufactured, the amorphous metal oxide film, which is excellent in film quality, can be deposited by a low-temperature treatment and a highly-reliable capacitance element and semiconductor device can be manufactured.