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:
Jan. 16, 2001
Filed:
Nov. 23, 1998
Applicant:
Inventor:
Koji Urabe, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/14763 ;
U.S. Cl.
CPC ...
H01L 2/14763 ;
Abstract
In a titanium film forming method of this invention, before a titanium film is formed, the temperature in a reaction chamber for forming the titanium film is set to a temperature or more at which hydrogen chloride is produced by chlorine and hydrogen. A hydrogenated gas is then fed into the reaction chamber for a predetermined period of time. With this process, before the titanium film is formed, chlorine gas and titanium chloride gas left in the reaction chamber for forming the titanium film are reduced.