Patent ID: 11908737
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A non-transitory computer-readable recording medium storing a program that causes, by a computer, a substrate processing apparatus to perform a process in a process chamber of the substrate processing apparatus, the process comprising:
(a) forming a first metal film to fill completely a concave portion in a surface of a substrate by supplying a plurality of times a first metal-containing gas and a first reducing gas without being mixed with each other or by simultaneously supplying the first metal-containing gas and the first reducing gas, to the substrate having the concave portion;
(b) forming a second metal film on the first metal film by supplying a plurality of times at least a second metal-containing gas and a second reducing gas without being mixed with each other or by simultaneously supplying at least the second metal-containing gas and the second reducing gas; and
(c) etching an upper portion of the first metal film and the second metal film by supplying an etching gas to the substrate,
wherein in (a), a thickness of the first metal film before performing (c) is 1.2 times or less of a thickness of the first metal film remaining after performing (c), and
wherein (c) is performed after (a) and (b).