Patent ID: 6808978
Filing Date: 2004-10-26
Classification: C23C,H01L

Abstract:
A method for fabricating a semiconductor memory device, comprising the steps of:loading a substrate into a reaction chamber for an atomic layer deposition; injecting a precursor consisting of M and X into the reaction chamber and including an adsorption precursor onto a surface of the substrate, wherein M is one of nickel (Ni), palladium (Pd) and platinum (Pt) and X is ligand; purging the reaction chamber; injecting a reaction gas into the reaction chamber and forming a metal layer by reacting the precursor adsorbed on the surface of the substrate with the reaction gas, wherein the reaction gas is a gas selected from the group consisting of NH3, hidrazine, C1ËœC10 alkylhydrazine, C1ËœC10 dialkylhydrazine and a mixture gas thereof; and purging the reaction chamber.