Patent ID: 8906471

Claim:
A method of depositing a metallic film by plasma CVD using a film forming apparatus including a chamber configured to receive a substrate to be processed, a stage configured to dispose the substrate to be processed in the chamber, a heater configured to heat the substrate to be processed on the stage, a gas supply device configured to supply a process gas for a film deposition and a cleaning gas into the chamber, a plasma generating device configured to generate plasma of the process gas in the chamber, and an evacuation device configured to evacuate inside of the chamber, the method comprising: forming a conductive precoat film on the stage inside the chamber, the precoat film including a metal which forms the metallic film; depositing the metallic film by the plasma CVD for a plurality of substrates to be processed sequentially, in which the depositing for each of the plurality of substrates includes: disposing a substrate to be processed on the stage where the conductive precoat film is formed by introducing the substrate to be processed into the chamber after the precoating, generating plasma of the process gas by supplying the process gas into the chamber while heating the substrate to be processed by the heater, and depositing the metallic film on the substrate by the plasma CVD; dry cleaning the chamber by introducing the cleaning gas into the chamber, after the film deposition process for the plurality of substrates to be processed has been completed; repeating the steps of forming the conductive precoat film on the stage, depositing the metallic film by the plasma CVD, and dry cleaning the chamber; and forming a conductive film on the stage one or more times during the course of the depositing process of the metallic film for the plurality of substrates to be processed such that a residual polymer film formed on the stage during the course of the depositing process is covered by the conductive film.