Patent ID: 7189649

Claim:
A method of forming a material film, comprising: providing a chemical vapor deposition (CVD) chamber comprising therein a showerhead coupled to a gas source and a pedestal coupled to a heater, wherein said showerhead is further coupled to a radio frequency (RF) power source; positioning a substrate on said pedestal; heating said substrate by said heater; flowing a nitrogen-containing gas into said CVD chamber, said nitrogen-containing gas being transported to a substrate surface of said substrate and saturatively chemisorbed onto said substrate surface; shutting down said flow of said nitrogen-containing gas; flowing a tantalum-containing organic metal precursor gas into said CVD chamber through said showerhead with said RF power source being off, wherein said tantalum-containing organic metal precursor gas reacts with said nitrogen-containing gas that are previously absorbed by said substrate surface; thereby depositing a material film on said heated substrate; thereafter turning on said RF power source to output a RF power; flowing an inert gas into said chamber; in-situ plasma treating said material film within said CVD chamber by providing said RF power to said inert gas; and removing said substrate out of said CVD chamber.