Patent ID: 6846521

Claim:
A method of forming a deposited film comprising: (a) introducing a gas as a raw material for forming the deposited film into a vacuum container; and (b) forming the deposited film on a substrate in the vacuum container containing a pair of electrodes consisting of an electric power application electrode to which electric power is applied and the substrate on which the deposited film is to be formed by generating plasma between the substrate and the power application electrode to decompose the gas, wherein the power application electrode consists of a single planar electrode and a plurality of split electrodes electrically connected to the planar electrode, each of the split electrodes having an area smaller than an area of a plane of the planar electrode, and wherein the plurality of split electrodes are arranged on a substrate-facing side of the planar electrode so as to form at least one substantially planar electrode layer having almost the same shape as the plane of the planar electrode.