IP Library › Granted Patent US 11,424,127
Granted Patent B2
US 11,424,127 · App. 17/476,197 · Granted Aug 23, 2022

Method of manufacturing semiconductor device, substrate processing apparatus, method of processing substrate, and recording medium

Inventors: Arito Ogawa (Toyama, JP); Atsuro Seino (Toyama, JP)
Assignee: KOKUSAI ELECTRIC CORPORATION
H01L21/28568C23C16/18C23C16/45527C23C16/45553H01L21/28556
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Quick Facts
Patent No.
US 11,424,127
App. No.
17/476,197
Granted
Aug 23, 2022
Kind
B2
Abstract

There is included (a) supplying a gas containing an organic ligand to a substrate; (b) supplying a metal-containing gas to the substrate; and (c) supplying a first reducing gas to the substrate, wherein after (a), a metal-containing film is formed on the substrate by performing (b) and (c) one or more times, respectively.

Claims (41)

1. A method of manufacturing a semiconductor device, comprising:

(a) supplying a gas containing an organic ligand to a substrate;

(b) supplying a metal-containing gas to the substrate; and

(c) supplying a first reducing gas to the substrate,

wherein after (a), without supplying a purge gas between (a) and (b), a metal-containing film is formed on the substrate by performing (b) and (c) one or more times, respectively.

2. The method of claim 1 , wherein the organic ligand contains a hydrocarbon group.

3. The method of claim 1 , wherein the organic ligand contains an alkyl group.

4. The method of claim 3 , wherein the alkyl group includes at least one selected from the group of an ethyl group, a propyl group, a butyl group, an isopropyl group, and an isobutyl group.

5. The method of claim 1 , wherein the organic ligand contains an amine group.

6. The method of claim 1 , wherein the gas containing the organic ligand contains a metal element.

7. The method of claim 6 , wherein the metal element contained in the gas containing the organic ligand is different from a metal element contained in the metal-containing gas.

8. The method of claim 6 , wherein the metal element contained in the gas containing the organic ligand is a non-transition metal element.

9. The method of claim 1 , further comprising: (d) before (a), supplying a second reducing gas to the substrate.

10. The method of claim 1 , further comprising: (e) after (a), supplying a second reducing gas to the substrate.

11. The method of claim 1 , further comprising:

(f) before (a), supplying a second reducing gas to the substrate; and

(g) after (a), supplying the second reducing gas to the substrate,

wherein (a) and (g) are performed multiple times.

12. The method of claim 9 , wherein the second reducing gas is a gas different from the first reducing gas.

13. The method of claim 9 , wherein the second reducing gas is the same gas as the first reducing gas.

14. The method of claim 1 , wherein in (a), the gas containing the organic ligand is supplied to the substrate in a time-division manner.

15. The method of claim 1 , wherein in (b), the metal-containing gas is supplied to the substrate on which the organic ligand is exposed.

16. A substrate processing apparatus comprising:

a process container in which a substrate is accommodated;

a gas supply system configured to supply a metal-containing gas, a first reducing gas, and a gas containing an organic ligand into the process container; and

a controller configured to be capable of controlling the gas supply system so as to perform a process including:

(a) supplying the gas containing the organic ligand to the substrate;

(b) supplying the metal-containing gas to the substrate; and

(c) supplying the first reducing gas to the substrate,

wherein after (a), without supplying a purge gas between (a) and (b), a metal-containing film is formed on the substrate by performing (b) and (c) one or more times, respectively.

17. A method of processing a substrate, comprising:

(a) supplying a gas containing an organic ligand to the substrate;

(b) supplying a metal-containing gas to the substrate; and

(c) supplying a first reducing gas to the substrate,

wherein after (a), without supplying a purge gas between (a) and (b), and

a metal-containing film is formed on the substrate by performing (b) and (c) one or more times, respectively.

18. A non-transitory computer-readable recording medium storing a program that causes, by a computer, a substrate processing apparatus to perform a process comprising:

(a) supplying a gas containing an organic ligand to a substrate;

(b) supplying a metal-containing gas to the substrate; and

(c) supplying a first reducing gas to the substrate,

wherein after (a), without supplying a purge gas between (a) and (b), a metal-containing film is formed on the substrate by performing (b) and (c) one or more times, respectively.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2021
From: OGAWA, ARITO; SEINO, ATSURO
To: KOKUSAI ELECTRIC CORPORATION
Reel/Frame 057494/0087 →
Priority Claims (1)
JP JP2020-157225 · Sep 18, 2020 · national
Continuity (1)
Related Publication 20220093404A1 · Mar 24, 2022