摘要 |
A method for irradiating plasma of a material to a substrate and introducing the material into the substrate includes an irradiation step of irradiating the plasma to the substrate during an irradiation time period in which the material is not diffused in the substrate, and a non-irradiation step of stopping irradiation of the plasma to the substrate during a non-irradiation time period in which the plasma disappears, wherein the irradiation step and the non-irradiation step are repeated.
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