Importance

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Abstract

Provided is a method of cyclically depositing a thin film including: performing an oxide depositing operation of repeatedly performing a deposition operation, a first purge operation, a reaction operation, and a second purge operation, wherein the deposition operation deposits silicon on a target by injecting a silicon precursor into a chamber into which the target is loaded, the first purge operation removes a non-reacted silicon precursor and a reacted byproduct from inside the chamber, the reaction operation supplies a first reaction source including oxygen into the chamber to form the deposited silicon as an oxide including silicon, and the second purge operation removes a non-reacted first reaction source and a reacted byproduct from the inside of the chamber; and performing a plasma processing operation of supplying plasma made of a second reaction source including nitrogen to the inside of the chamber to process the oxide including the silicon.

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First Claim