Patent ID: 6653197
Filing Date: 2003-11-25
Classification: H01L

Abstract:
A method of fabricating a capacitor in a semiconductor device, comprising:forming a ruthenium film as a lower electrode on a semiconductor substrate; forming a TaON film on the ruthenium film; and forming an upper electrode on the TaON film, wherein forming the ruthenium film comprises using tris(2,4-octanedionato)ruthenium in vapor phase as a ruthenium source; maintaining the semiconductor substrate at a temperature ranging from 200Â° C. to 350; supplying O2 and NH3 gases as reaction gases at flow rates independently ranging from more than 20 to less than 1,000 SCCM; and maintaining a reactor chamber at a pressure ranging from more than 2 mTorr to less than 10 Torr.