Patent ID: 9376754
Filing Date: 2016-06-28
CPC Classification: C23C

Claim Text:
1. A thin film forming method for forming a thin film, comprising a plurality of cycles of steps, each cycle including: introducing an organic metal gas containing hydrogen into a deposition vessel to cause a component of the organic metal containing hydrogen to be adsorbed on a substrate; introducing an oxidizing gas or a nitriding gas into the deposition vessel, generating plasma with the oxidizing gas or the nitriding gas by a plasma source, and oxidizing or nitriding the component of the organic metal adsorbed on the substrate; detecting emission intensity of a light emitted from an excited hydrogen radical separated from the organic metal absorbed on the substrate when the organic metal reacts with the oxidizing gas or the nitriding gas to form an oxidized metal or a nitride metal on the substrate; setting a first predetermined value based on a maximum emission intensity of the detected light in each cycle; and stopping the generation of the plasma when a value of the detected emission intensity decreases from the maximum value to the first predetermined value or less.