Patent ID: 9564311
Date: 2017-02-07
CPC Classifications: C23C,H01L

Claim:
1. A method of depositing a thin film, the method comprising: supplying a source gas to a reaction space; repeating a first gas supply cycle a first plurality of times, the first gas supply cycle comprising supplying first plasma while supplying a reactant gas to the reaction space; supplying the source gas to the reaction space; and repeating a second gas supply cycle a second plurality of times, the second gas supply cycle comprising supplying second plasma while supplying the reactant gas to the reaction space, wherein the supplying of the first plasma is executed by supplying remote plasma, and the supplying of the second plasma is executed by supplying direct plasma, and wherein the first gas supply cycle is firstly repeated the first plurality of times at initial step of depositing the thin film to reduce sub-layer oxidation, and then the second gas supply cycle is repeated the second plurality of times; wherein the repeating of a first plurality of times comprises repeating the first gas supply cycle up to seven times.