Patent ID: 9748104
Date: 2017-08-29
CPC Classifications: C23C,H01L

Claim:
1. A method of depositing a film, the method comprising a step of: performing one operation of a unit of a film deposition process by carrying a substrate into a processing chamber, by depositing a nitride film on the substrate and a substrate holder in the processing chamber, and by carrying the substrate out of the processing chamber after finishing depositing the nitride film on the substrate and the substrate holder, the film deposition process being performed for a predetermined period of time; repeating the one operation a predetermined plurality of number of times continuously to deposit the nitride film on a plurality of substrates and the substrate holder in the processing chamber continuously; oxidizing the substrate holder in the processing chamber without the substrate present in the processing chamber by supplying an oxidation gas into the processing chamber so as to deposit an oxide film on a surface of the nitride film deposited on the substrate holder in the processing chamber, the step of oxidizing the substrate holder being performed for 120 seconds or less, the film deposition process being performed for more than 120 seconds; carrying a second substrate other than the plurality of processed substrates into the processing chamber after oxidizing the subtrate holder in the processing chamber; and depositing a second nitride film on the second substrate and the oxide film deposited on the subtrate holder in the processing chamber.