Patent ID: 6649536
Filing Date: 2003-11-18
Classification: H01L

Abstract:
A method for fabricating a capacitor of a semiconductor device on a semiconductor substrate, comprising:forming an insulating film on the semiconductor substrate; forming a plug in the insulating film, the plug electrically connected with the semiconductor substrate; forming a lower electrode on the plug and the insulating film adjacent to the plug; forming a Ta2O5 film on the lower electrode and the insulating film adjacent to the lower electrode; oxidizing the Ta2O5 film by flowing oxygen under the ambient of hydrogen gas at a temperature of between about 800Â° C. and about 850Â° C.; re-oxidizing the oxidized Ta2O5 film by UV-O3 process; and forming an upper electrode on the Ta2O5 film on the lower electrode and the insulating film adjacent to the lower electrode.