Patent ID: 6583021
Filing Date: 2003-06-24
Classification: H01L,Y10S

Abstract:
A method of fabricating a capacitor, the method comprising the steps of:(a) forming a Ti1âˆ’xHfxN layer on a substrate, wherein x is in a range from 0 to about 0.5; (b) forming an electrode layer on the Ti1âˆ’xHfxN layer; and (c) forming a HfO2 layer on an interface between the electrode layer and the Ti1âˆ’xHfxN layer by performing a thermal treatment in an oxygen gas-containing atmosphere, said capacitor comprising a bottom electrode formed from the Ti1âˆ’xHfxN layer, a dielectric layer is formed with the HfO2 layer, and a top electrode formed from the electrode layer.