IP Library › Granted Patent US 11,390,635
Granted Patent B2
US 11,390,635 · App. 16/766,188 · Granted Jul 19, 2022

Composition for depositing silicon-containing thin film and method for producing silicon-containing thin film using the same

Inventors: Sung Gi Kim (Daejeon, KR); Joong Jin Park (Daejeon, KR); Byeong-il Yang (Daejeon, KR); Se Jin Jang (Jeju-Si, KR); Gun-Joo Park (Daejeon, KR); Jeong Joo Park (Daejeon, KR); Hee Yeon Jeong (Jecheon-Si, KR); Sam Dong Lee (Daejeon, KR); Sang Ick Lee (Daejeon, KR); Myong Woon Kim (Daejeon, KR)
Assignee: DNF CO., LTD.
C07F7/10C01B33/027C23C16/345C23C16/402C23C16/46
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,390,635
App. No.
16/766,188
Granted
Jul 19, 2022
Kind
B2
Abstract

Provided are a composition for depositing a silicon-containing thin film, containing a trisilylamine compound and a method for producing a silicon-containing thin film using the same, and more particularly, a composition for depositing a silicon-containing thin film, containing a trisilylamine compound which is capable of forming a silicon-containing thin film at a very high deposition rate at a low temperature to be usable as a precursor of a silicon-containing thin film and an encapsulant of a display, and a method for producing a silicon-containing thin film by using the same.

Claims (18)

1. A composition for depositing a silicon-containing thin film containing a trisilylamine compound represented by Chemical Formula 1 below:

2. A method for producing a silicon-containing thin film, comprising:

supplying a trisilylamine compound represented by Chemical Formula 1 below to a chamber in which a substrate to be deposited is placed:

3. The method of claim 2 , wherein a temperature of the substrate to be deposited is less than 100° C.

4. The method of claim 3 , wherein the temperature of the substrate to be deposited is 95° C. or less.

5. The method of claim 3 , wherein the silicon-containing thin film is a silicon nitride film, and a deposition rate of the silicon-containing thin film is 8 Å/min or more.

6. The method of claim 3 , wherein the silicon-containing thin film is a silicon oxide film, and a deposition rate of the silicon-containing thin film is 70 Å/min or more.

7. The method of claim 2 , wherein before, during, and/or after the supplying of the trisilylamine compound, any one or two or more gases are supplied, the gases being selected from oxygen (O 2 ), ozone (O 3 ), distilled water (H 2 O), hydrogen peroxide (H 2 O 2 ), nitrogen monoxide (NO), nitrous oxide (N 2 O), nitrogen dioxide (NO 2 ), ammonia (NH 3 ), nitrogen (N 2 ), hydrazine (N 2 H 4 ), hydrazine derivatives, diamines, carbon monoxide (CO), carbon dioxide (CO 2 ), C1-C12 saturated or unsaturated hydrocarbons, hydrogen, argon, and helium.

8. The method of claim 2 , further comprising:

a) heating and maintaining the substrate to be deposited which is placed in the chamber to a deposition temperature;

b) contacting the substrate to be deposited with the trisilylamine compound and adsorbing the trisilylamine compound onto the substrate to be deposited; and

c) injecting a reactive gas into the substrate to be deposited on which the trisilylamine compound is adsorbed.

9. The method of claim 8 , wherein the silicon-containing thin film is a silicon nitride film, and when the steps a) to c) are performed in one cycle, a deposition rate of the silicon nitride film per cycle is 0.65 Å/cycle or more.

10. The method of claim 8 , wherein the silicon-containing thin film is a silicon oxide film, and when the steps a) to c) are performed in one cycle, a deposition rate of the silicon oxide film per cycle is 2.5 Å/cycle or more.

11. The method of claim 8 , wherein the reactive gas is selected from an oxygen-containing gas, a nitrogen-containing gas, a carbon-containing gas, an inert gas, or a mixed gas thereof, and is a plasma-activated gas.

12. The method of claim 2 , wherein the silicon-containing thin film is one or two or more selected from a silicon oxide thin film, a silicon oxycarbide thin film, a silicon carbonitride thin film, a silicon nitride thin film, a silicon oxynitride thin film, a silicon oxycarbonitride thin film, and a silicon carbide thin film.

13. A silicon-containing thin film produced by supplying a trisilylamine compound represented by Chemical Formula 1 to a chamber in which a substrate to be deposited is placed:

14. The composition of claim 1 , wherein the silicon-containing thin film is one or two or more selected from a silicon oxide thin film, a silicon oxycarbide thin film, a silicon carbonitride thin film, a silicon nitride thin film, a silicon oxynitride thin film, a silicon oxycarbonitride thin film, and a silicon carbide thin film.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 21, 2020
From: KIM, SUNG GI; PARK, JOONG JIN; YANG, BYEONG-IL; JANG, SE JIN; PARK, GUN-JOO; PARK, JEONG JOO; JEONG, HEE YEON; LEE, SAM DONG; LEE, SANG ICK; KIM, MYONG WOON
To: DNF CO., LTD.
Reel/Frame 052727/0964 →
Priority Claims (2)
KR 10-2017-0156464 · Nov 22, 2017 · national
KR 10-2018-0144899 · Nov 21, 2018 · national
Continuity (1)
Related Publication 20200361966A1 · Nov 19, 2020
Cited By (1)
US 12,406,841