Patent ID: 8328999

Claim:
A method of controlling a film-forming apparatus for forming a cathode on an organic layer formed on a target object in a processing container, wherein the film-forming apparatus comprises: a target material formed in the processing container and formed of a first metal constituting a main material of the cathode; an evaporation source formed outside the processing container and evaporating a second metal having a lower work function than the first metal by heating the second metal; a first gas supply path communicating with the evaporation source to transport the evaporated second metal into the processing container by using an inert gas; and an energy source supplying desired energy into the processing container, the method comprising: generating plasma by exciting the inert gas supplied from the first gas supply path by using the supplied energy, and controlling a ratio of the second metal mixed in the cathode while forming the cathode by using a target atom of the first metal, wherein the target atom is generated from the target material when the target material contacts the generated plasma.