Patent ID: 11923193
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C | IPC H

Claim 0:
1. A method of processing a substrate, comprising:
(a) modifying a surface of a first base by supplying a modifying gas to the substrate including the first base and a second base on a surface of the substrate, the modifying gas including a silicon-containing gas and a first fluorine-containing gas;
(b) forming a first film on a surface of the second base by supplying a first film-forming gas to the substrate after performing (a);
(c) etching a first film formed on the surface of the first base- and remodifying the surface of the first base by supplying a second fluorine-containing gas to the substrate after the first film is formed on the surface of the first base after performing (b); and
(d) forming a second film on the first film formed on the surface of the second base by supplying a second film-forming gas to the substrate after performing (c),
wherein in (a), the silicon-containing gas is supplied before the first fluorine-containing gas is supplied.