Patent ID: 7807584

Claim:
A method of forming a metallic oxide film using Atomic Layer Deposition while controlling the power reflected by a reactor, comprising: feeding metallic source gases and a reactant gas into the reactor individually, the reactor including a substrate therein; and producing a plasma in the reactor from the reactant gas, wherein at least one of the metallic source gases includes at least one of an amino-group and an alkoxy-group, at least one other of the metallic source gases includes neither an amino-group nor an alkoxy-group, and the reactant gas includes oxygen, and the reflected power is relatively uniform, wherein a first metallic source gas including neither an amino-group nor an alkoxy-group is fed into the reactor before a second metallic source gas including at least one of an amino-group and an alkoxy-group, and the metallic oxide film does not include metal from the second metallic source gas.