Patent ID: 11887861
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of processing a substrate, the method comprising:
loading the substrate having a silicon-containing film formed thereon into a processing container;
a first process of modifying the silicon-containing film by supplying a processing gas containing a halogen-containing gas and a basic gas to the substrate, in a state in which an internal pressure of the processing container is set to a first pressure, to generate a reaction product;
a second process of vaporizing the reaction product by setting the internal pressure of the processing container to a second pressure lower than the first pressure; and
alternately repeating the first process and the second process,
wherein in subsequent rounds of the first process following the initial first process in the alternately repeating the first process and the second process, the processing gas is supplied to the substrate on which the reaction product remains.