IP Library Granted Patent US 12,480,047
Granted Patent B2
US 12,480,047 · App. 17/825,722 · Granted Nov 25, 2025

Composition and method for treating substrate

Inventors: Moe Narita (Shizuoka, JP); Atsushi Mizutani (Shizuoka, JP)
Assignee: FUJIFILM Corporation
C09K13/06H01L21/02071H01L21/02074H01L21/02087H01L21/0209H01L21/02244H01L21/32135
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Quick Facts
Patent No.
US 12,480,047
App. No.
17/825,722
Granted
Nov 25, 2025
Kind
B2
Abstract

A composition contains a periodic acid compound selected from the group consisting of a periodic acid and a salt thereof, an amine compound that is a specific compound represented by Formula (1) or a salt thereof, and water.

Claims (54)

1 . A composition comprising:

a periodic acid compound selected from the group consisting of a periodic acid and a salt thereof;

an amine compound which is a compound represented by the following Formula (1) or a salt thereof; and

water,

wherein a ratio of a content of the periodic acid compounds to a content of the amine compound is 0.01 or more and less than 45 as a mass ratio,

R—NH 2   Formula (1)

in Formula (1), R represents an aliphatic hydrocarbon group which optionally has a substituent, the substituent is selected from the group consisting of an amino group, a phosphonic acid group, and a sulfo group, the aliphatic hydrocarbon group optionally has at least one linking group selected from the group consisting of —O—, —S— and

—NR 1 — in a carbon chain, R 1 represents a hydrogen atom or an aliphatic hydrocarbon group which optionally has a substituent, and the substituent does not include a hydroxy group.

2 . The composition according to claim 1 ,

wherein the composition is a composition for treating a substrate having a substance selected from the group consisting of a ruthenium-containing substance and a ruthenium oxide-containing substance.

3 . The composition according to claim 1 ,

wherein the composition is a composition for treating a substrate having a ruthenium-containing substance and a ruthenium oxide-containing substance.

4 . The composition according to claim 1 ,

wherein the amine compound has 1 to 8 carbon atoms.

5 . The composition according to claim 1 ,

wherein the aliphatic hydrocarbon group represented by R has a substituent group selected from the group consisting of an amino group, a phosphonic acid group, and a sulfo group.

6 . The composition according to claim 1 ,

wherein the amine compound is at least one compound selected from the group consisting of 1,3-propanediamine, 1,4-butanediamine, and 1,6-hexanediamine.

7 . The composition according to claim 1 ,

wherein the composition has a pH of 10.0 or less.

8 . The composition according to claim 1 ,

wherein the composition has a pH of 3.5 or more.

9 . The composition according to claim 1 ,

wherein the composition has a pH of 3.5 to 6.0.

10 . The composition according to claim 1 ,

wherein the composition substantially does not contain abrasive particles.

11 . A method for treating a substrate, comprising:

a step A of removing a substance selected from the group consisting of a metal-containing substance and an oxidized metal-containing substance on a substrate by using the composition according to claim 1 .

12 . The method for treating a substrate according to claim 11 ,

wherein the metal-containing substance includes a ruthenium-containing substance, and the oxidized metal-containing substance includes a ruthenium oxide-containing substance.

13 . The method for treating a substrate according to claim 11 ,

wherein the step A is a step A1 of performing a recess etching treatment by using the composition on a wiring line that is disposed on a substrate and consists of a metal-containing substance or an oxidized metal-containing substance, a step A2 of removing a film in an outer edge portion of a substrate by using the composition, the substrate having the film consisting of a metal-containing substance or an oxidized metal-containing substance disposed thereon, a step A3 of removing a metal-containing substance or an oxidized metal-containing substance attached to a back surface of a substrate by using the composition, the substrate having a film consisting of a metal-containing substance or an oxidized metal-containing substance disposed thereon, a step A4 of removing a metal-containing substance or an oxidized metal-containing substance on a substrate having undergone dry etching by using the composition, or a step A5 of removing a metal-containing substance or an oxidized metal-containing substance on a substrate having undergone chemical mechanical polishing by using the composition.

14 . The method for treating a substrate according to claim 11 , further comprising:

an oxidation treatment step of bringing an oxidant into contact with the metal-containing substance on the substrate,

wherein the step A is performed on the substrate having at least an oxidized metal-containing substance manufactured by the oxidation treatment step.

15 . A composition comprising:

a periodic acid compound selected from the group consisting of a periodic acid and a salt thereof;

an amine compound selected from the group consisting of 1,3-propanediamine, 1,4-butanediamine, 1,6-hexanediamine, succinic acid amide, malonamide, propanamide, butyramide, and adipamide; and

water,

wherein the composition substantially does not contain abrasive particles.

16 . A composition comprising:

a periodic acid compound selected from the group consisting of a periodic acid and a salt thereof;

an amine compound which is a compound represented by the following Formula (1) or a salt thereof; and

water,

wherein the composition has a pH of 6.0 or less,

R—NH 2   Formula (1)

in Formula (1), R represents an aliphatic hydrocarbon group which optionally has a substituent, the substituent is selected from the group consisting of an amino group, a phosphonic acid group, and a sulfo group, the aliphatic hydrocarbon group optionally has at least one linking group selected from the group consisting of —O—, —S— and —NR 1 — in a carbon chain, R 1 represents a hydrogen atom or an aliphatic hydrocarbon group which optionally has a substituent, and the substituent does not include a hydroxy group.

17 . A method for treating a substrate, comprising:

a step A of removing a ruthenium-containing substance on a substrate by using a composition comprising:

a periodic acid compound selected from the group consisting of a periodic acid and a salt thereof;

an amine compound which is a compound represented by the following Formula (1) or a salt thereof; and

water,

R—NH 2   Formula (1)

in Formula (1), R represents an aliphatic hydrocarbon group which optionally has a substituent, the substituent is selected from the group consisting of an amino group, a phosphonic acid group, and a sulfo group, the aliphatic hydrocarbon group optionally has at least one linking group selected from the group consisting of —O—, —S— and —NR 1 — in a carbon chain, R 1 represents a hydrogen atom or an aliphatic hydrocarbon group which optionally has a substituent, and the substituent does not include a hydroxy group.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2022
From: NARITA, MOE; MIZUTANI, ATSUSHI
To: FUJIFILM CORPORATION
Reel/Frame 060089/0589 →
Priority Claims (1)
JP 2020-011382 · Jan 28, 2020 · national
Continuity (2)
Continuation PCTJP2021000158 · Jan 6, 2021
Related Publication 20220282156A1 · Sep 8, 2022
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