IP Library › Granted Patent US 11,091,696
Granted Patent B2
US 11,091,696 · App. 16/387,892 · Granted Aug 17, 2021

Etching composition and method for manufacturing semiconductor device using the same

Inventors: Yongtae Kim (Seongnam-si, KR); Junghun Lim (Seongnam-si, KR); Soojin Kim (Seoul, KR); Jung-Min Oh (Incheon, KR); Seungmin Jeon (Suwon-si, KR); Hayoung Jeon (Hwaseong-si, KR)
Assignees: SAMSUNG ELECTRONICS CO., LTD.; Soulbrain Co., Ltd.
C09K13/08H01L21/02532H01L21/02603H01L21/30604H01L29/0673H01L29/42392H01L29/66545H01L29/66742H01L29/78696
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Quick Facts
Patent No.
US 11,091,696
App. No.
16/387,892
Granted
Aug 17, 2021
Kind
B2
Abstract

Provided are an etching composition and a method for manufacturing a semiconductor device using the same. According to embodiments, the etching composition may comprise from about 15 wt % to about 75 wt % of peracetic acid; a fluorine compound; an amine compound; and an organic solvent.

Claims (46)

1. An etching composition, comprising:

a peracetic acid mixture including peracetic acid, acetic acid, and hydrogen peroxide;

a fluorine compound;

an amine compound including at least one among an aliphatic amine of 1 to 12 carbon atoms and a cyclic amine of 5 to 12 carbon atoms;

an organic solvent; and

wherein the peracetic acid is from about 15 wt % to about 75 wt % of the etching composition and from about 40 wt % to about 60 wt % of the peracetic acid mixture,

wherein a composition ratio of the organic solvent is from about 5 wt % to about 12 wt %, and

wherein the amine compound does not include alkanolamine.

2. The etching composition of claim 1 , wherein a composition ratio of the amine compound is from about 0.01 wt % to about 5 wt %.

3. The etching composition of claim 1 , wherein the organic solvent comprises at least one selected from a carboxylic acid compound of 1 to 5 carbon atoms and an alcohol compound of 1 to 10 carbon atoms.

4. The etching composition of claim 1 , wherein the organic solvent comprises an acetate compound of 1 to 10 carbon atoms.

5. The etching composition of claim 1 , further comprising water.

6. The etching composition of claim 1 , further comprising an aging catalyst, wherein the aging catalyst comprises at least one among sulfuric acid and methanesulfonic acid.

7. An etching composition comprising:

a peracetic acid mixture including peracetic acid, acetic acid, and hydrogen peroxide;

a fluorine compound;

from about 0.01 wt % to about 5 wt % of an amine compound; and

an organic solvent,

wherein the peracetic acid is from about 40 wt % to about 60 wt % of the peracetic acid mixture,

wherein a composition ratio of the organic solvent is from about 5 wt % to about 12 wt %, and

wherein the amine compound is free of hydroxy group.

8. The etching composition of claim 7 ,

wherein a composition ratio of the peracetic acid is from about 15 wt % to about 75 wt %.

9. The etching composition of claim 7 , wherein the amine compound comprises at least one among an aliphatic amine of 1 to 12 carbon atoms and a cyclic amine of 5 to 12 carbon atoms.

10. The etching composition of claim 7 , wherein the organic solvent comprises an acetate compound of 1 to 10 carbon atoms.

11. The etching composition of claim 7 , further comprising water.

12. The etching composition of claim 7 ,

wherein the organic solvent comprises at least one among an alcohol compound of 1 to 10 carbon atoms and a carboxylic acid compound of 1 to 5 carbon atoms,

wherein a composition ratio of the fluorine compound is from about 0.01 wt % to about 5 wt %, and

wherein the fluorine compound comprises at least one among hydrofluoric acid (HF), sodium fluoride (NaF), potassium fluoride (KF), aluminum fluoride (AlF 2 ), lithium fluoride (LiF 4 ), calcium fluoride (CaF 3 ), sodium hydrogen hexafluoride (NaHF 6 ), ammonium fluoride (NH 4 F), ammonium difluoride (NH4HF 2 ), tetramethylammonium fluoride ((CH 3 ) 4 NF), potassium bifluoride (KHF 2 ), tetrafluoroboric acid (HBF 4 ), ammonium tetrafluoroborate (NH 4 BF 4 ), potassium fluoroborate (KBF 4 ), and fluorosilicic acid (H 2 SiF 6 ).

13. An etching composition, comprising:

a peracetic acid mixture including peracetic acid, acetic acid, and hydrogen peroxide;

from about 0.01 wt % to about 5 wt % of a fluorine compound;

from about 0.01 wt % to about 5 wt % of an amine compound;

from about 5 wt % to about 12 wt % of an organic solvent; and

an aging catalyst comprising at least one among sulfuric acid and methanesulfonic acid,

wherein the peracetic acid is from about 15 wt % to about 75 wt % of the etching composition and from about 40 wt % to about 60 wt % of the peracetic acid mixture,

wherein the organic solvent comprises an acetate compound of 1 to 10 carbon atoms,

wherein the amine compound comprises at least one among an aliphatic amine of 1 to 12 carbon atoms and a cyclic amine of 5 to 12 carbon atoms, and

wherein the amine compound does not include hydroxyl group.

14. The etching composition of claim 13 ,

wherein the fluorine compound is hydrofluoric acid,

wherein the amine compound is one of the 4-picoline, 1,3-diaminopropane, propylamine, and 4,4-methylpiperidine, and

wherein the organic solvent is octyl acetate.

15. The etching composition of claim 1 ,

wherein the amine compound is one of the 4-picoline, 1,3-diaminopropane, propylamine, and 4,4-methylpiperidine.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2019
From: KIM, SOOJIN; OH, JUNG-MIN; JEON, SEUNGMIN; JEON, HAYOUNG; KIM, YONGTAE; LIM, JUNGHUN
To: SAMSUNG ELECTRONICS CO., LTD.; SOULBRAIN CO., LTD.
Reel/Frame 048947/0462 →
Priority Claims (1)
KR 10-2018-0107126 · Sep 7, 2018 · national
Continuity (1)
Related Publication 20200079999A1 · Mar 12, 2020
Cited By (1)
US 12,234,400