Patent ID: 9564286
Date: 2017-02-07
CPC Classifications: C23C,H01J,H01L

Claim:
1. A method of forming a thin film of a semiconductor device, comprising: forming a precursor layer on a surface of a substrate by supplying a precursor gas into a chamber; discharging the precursor gas remaining in the chamber to an outside of the chamber by supplying a purge gas into the chamber; supplying a reactant gas into the chamber; generating plasma based on the reactant gas; forming a thin film by a chemical reaction between the plasma and the precursor layer and radiating extreme ultraviolet (EUV) light into the chamber; and discharging the reactant gas and the plasma remaining in the chamber by supplying a purge gas into the chamber, wherein a time period for generating the plasma is shorter than a time period for supplying the reactant gas, wherein a starting point of the time period for generating the plasma is later than a starting point of the time period for supplying the reactant gas into the chamber, and wherein a time period for radiating the EUV light into the chamber is shorter than the time period for generating the plasma based on the reactant gas.