Method of depositing a film

A method of depositing a film of forming a doped oxide film, which includes a first oxide film containing a first element and doped with a second element, on a plurality of substrates using a film deposition apparatus including

• a turntable that is accommodated in a chamber, is rotatable, and includes mounting portions formed on an upper surface of the turntable so that the substrates are mounted on the mounting portions,
• a first process area laid out above the upper surface of the turntable and being provided with a first reaction gas supplying portion, which supplies gases toward the upper surface of the turntable,
• a second process area arranged apart from the first process area along a peripheral direction of the turntable and being provided with a second reaction gas supplying portion, which supplies the gases toward the upper surface of the turntable, and
• a separation area including a separation gas supplying portion provided between the first process area and the second process area and supplying a separation gas onto the upper surface of the turntable, and a ceiling surface forming a narrow space so that the narrow space for introducing the separation gas supplied from the separation gas supplying portion to the first process area and the second process area is formed between the ceiling surface and the surface of the turntable, the method of depositing the film comprising:
• a first film deposition process of depositing the first oxide film containing the first element onto the substrates by rotating the turntable a predetermined number of turns while a first reaction gas containing the first element is supplied from the first reaction gas supplying portion, an oxidation gas is supplied from the second reaction gas supplying portion, and the separation gas is supplied from the separation gas supplying portion;
• and
• a doping process of doping the first oxide film with the second element by rotating the turntable a predetermined number of turns while a second reaction gas containing the second element is supplied from one of the first reaction gas supplying portion and the second reaction gas supplying portion, an inert gas is supplied from another one of the first reaction gas supplying portion and the second reaction gas supplying portion, and the separation gas is supplied from the separation gas supplying portion.