Patent ID: 8679913

Claim:
A method for forming a Sr—Ti—O-based film on a substrate, the method comprising: disposing the substrate within a processing chamber, heating the substrate, and forming the Sr—Ti—O-based film on the substrate by introducing a gaseous Ti raw material, a gaseous Sr raw material, and a gaseous oxidant H 2 O and O 3 into the processing chamber in a state where the substrate is heated, wherein a SrO film formation process and a TiO film formation process are performed multiple times, respectively, in said forming of the Sr—Ti—O-based film, wherein the SrO film formation process comprises adsorbing Sr onto the substrate by introducing the gaseous Sr raw material into the processing chamber, oxidizing Sr by introducing the gaseous oxidant H 2 O into the processing chamber first, stopping the introducing the gaseous oxidant H 2 O, and then consecutively introducing the gaseous oxidant O 3 into the processing chamber, and then purging an inside of the processing chamber, and wherein the TiO film formation process comprises adsorbing Ti onto the substrate by introducing the gaseous Ti raw material into the processing chamber, oxidizing a Ti film by introducing the gaseous oxidant O 3 into the processing chamber, and then purging the inside of the processing chamber.