Patent ID: 6656788
Filing Date: 2003-12-02
Classification: C23C,H01L

Abstract:
A method for manufacturing a capacitor in a semiconductor device comprising:forming a lower structure on a semiconductor device; forming a lower electrode on the lower structure of the semiconductor device; forming a dielectric thin film by depositing an amorphous TaON film on a surface of the lower electrode, and supplying a Ta source gas in a mono-pulse manner and continuously supplying a reaction gas even when the Ta source gas is not being supplied; and forming an upper electrode on the upper portion of the dielectric thin film; wherein, before the amorphous TaON film is deposited, the surface of the lower electrode is nitrified by using plasma at a temperature between about 300 C. and 600 C. in an NH3 atmosphere for about 0.5 to 10 minutes.