Patent ID: 6468603
Filing Date: 2002-10-22
Classification: C23C,H01L

Abstract:
A method for applying bias electric power in a plasma film-forming method in which a plasma of film-forming gas including a compound gas of carbon and fluorine is formed in a vacuum container including a stage for an object to be processed, to draw ions in the plasma toward the object while forming an insulation film consisting of fluorine-added carbon onto the object, the method comprising:applying a first electric power of the bias electric power to the stage and supplying the compound gas of carbon and fluorine at a first flow rate to form the film of fluorine-added carbon onto the object; and applying a second electric power of the bias electric power smaller than the first electric power to the stage and supplying the compound gas of carbon and fluorine at a second flow rate smaller than the first flow rate to form the film of fluorine-added carbon onto the object.