IP Library › Granted Patent US 11,459,653
Granted Patent B2
US 11,459,653 · App. 17/294,377 · Granted Oct 4, 2022

Method for manufacturing molybdenum-containing thin film and molybdenum-containing thin film manufactured thereby

Inventors: Myong Woon Kim (Daejeon, KR); Sang Ick Lee (Daejeon, KR); Jang Woo Seo (Daejeon, KR); Sang Yong Jeon (Sejong-si, KR); Haeng Don Lim (Daejeon, KR)
Assignee: DNF CO., LTD.
C23C16/18C07F17/00C23C16/45553C23C16/56
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Quick Facts
Patent No.
US 11,459,653
App. No.
17/294,377
Granted
Oct 4, 2022
Kind
B2
Abstract

The present invention provides a method for manufacturing a molybdenum-containing thin film and a molybdenum-containing thin film manufactured thereby. By using a molybdenum (0)-based hydrocarbon compound and a predetermined reaction gas, the method for manufacturing a molybdenum-containing thin film according to the present invention enables easy manufacturing of a highly pure thin film in a simple process.

Claims (24)

1. A method of manufacturing a molybdenum-containing thin film, the method comprising:

using a molybdenum(0)-based hydrocarbon compound as a precursor for depositing a thin film, wherein the molybdenum (0)-based hydrocarbon compound is represented by the following Formula 1, 2, or 3:

wherein R 1 to R 6 are each independently hydrogen or C1-C7alkyl,

wherein R 1 and R 2 are each independently hydrogen or C1-C7alkyl, and

using iodine, (C1-C3)alkyl iodide, iodo silane, or a mixture thereof as a reaction gas to manufacture the molybdenum-containing thin film.

2. The method of claim 1 , wherein the method is performed by atomic layer deposition (ALD), chemical vapor deposition (CVD), metalorganic chemical vapor deposition (MOCVD), low pressure chemical vapor deposition (LPCVD), plasma-enhanced chemical vapor deposition (PECVD), or plasma-enhanced atomic layer deposition (PEALD).

3. The method of claim 1 , wherein the method includes:

a) maintaining a temperature of a substrate mounted in a chamber at 80 to 500° C.;

b) injecting a carrier gas and the molybdenum(0)-based hydrocarbon compound; and

c) injecting a reaction gas which is iodine, (C1-C3)alkyl iodide, iodo silane, or a mixture thereof to manufacture the molybdenum-containing thin film on the substrate.

4. The method of claim 3 , further comprising, after c), performing heat treatment.

5. The method of claim 4 , wherein the heat treatment is performed at 200 to 700° C.

6. The method of claim 3 , wherein the carrier gas is any one or two or more selected from a group consisting of nitrogen, hydrogen, argon, and helium.

7. The method of claim 1 , wherein the reaction gas is used at 0.1 to 200 mol, based on 1 mol of the molybdenum(0)-based hydrocarbon compound.

8. The method of claim 1 , wherein the reaction gas is I 2 , CH 3 I, CH 2 I 2 , CHI 3 , CH 3 CH 2 I, CH 3 CHI 2 , ICH 2 CH 2 I, CH 3 CH 2 CH 2 I, CH 3 CHICH 3 , ICH 2 CH 2 CH 2 I, or SiH 2 I 2 .

9. A composition for depositing a molybdenum-containing thin film, the composition comprising:

a molybdenum(0)-based hydrocarbon compound as a precursor represented by the following Formula 1, 2, or 3,

wherein R 1 to R 6 are each independently hydrogen or C1-C7alkyl,

wherein R 1 and R 2 are each independently hydrogen or C1-C7alkyl; and

iodine, (C1-C3)alkyl iodide, iodo silane, or a mixture thereof as reaction gas.

10. The composition of claim 9 , wherein the reaction gas is used at 0.1 to 200 mol, based on 1 mol of the molybdenum(0)-based hydrocarbon compound.

11. The composition of claim 9 , wherein the reaction gas is I 2 , CH 3 I, CH 2 I 2 , CHI 3 , CH 3 CH 2 I, CH 3 CHI 2 , ICH 2 CH 2 I, CH 3 CH 2 CH 2 I, CH 3 CHICH 3 , ICH 2 CH 2 CH 2 I, or SiH 2 I 2 .

12. A molybdenum-containing thin film, manufactured using the composition for depositing a molybdenum-containing thin film of claim 9 , having a specific resistance of 200 μΩ·cm or less and having an oxygen content of 10% or less.

13. The molybdenum-containing thin film of claim 12 , wherein the molybdenum-containing thin film has a carbon content of 30% or less.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 19, 2021
From: KIM, MYONG WOON; LEE, SANG ICK; SEO, JANG WOO; JEON, SANG YONG; LIM, HAENG DON
To: DNF CO., LTD.
Reel/Frame 056296/0520 →
Priority Claims (1)
KR 10-2018-0140266 · Nov 14, 2018 · national
Continuity (1)
Related Publication 20220018017A1 · Jan 20, 2022