Patent ID: 6723660
Filing Date: 2004-04-20
Classification: C23C

Abstract:
A method of forming thin film on a substrate, comprising:(i) transferring a substrate into a reaction chamber (ii) supplying a material gas into the reaction chamber; (iii) setting a pressure in the reaction chamber to a predetermined pressure; (iv) keeping a temperature of an RF electrode constant to form a thin film on the substrate; (v) transferring the substrate on which the thin film has been formed outside the reaction chamber; and repeating said (i), (ii), (iii), (iv) and (v) for processing a plurality of substrates; wherein a pressure control gas having no ability to independently form a film is supplied into the reaction chamber before forming the thin film, thereby controlling the pressure in the reaction chamber to be substantially equal to the predetermined pressure, and the pressure control gas is supplied into the reaction chamber during forming the thin film on each of the substrates to keep the temperature on the RF electrode substantially constant.