IP Library › Granted Patent US 8,802,608
Granted Patent B2
US 8,802,608 · App. 12/668,695 · Granted Aug 12, 2014

Composition for cleaning and rust prevention and process for producing semiconductor element or display element

Inventors: Kenji Shimada (Tokyo, JP); Hiroshi Matsunaga (Tokyo, JP); Kojiro Abe (Chiba, JP); Kenji Yamada (Tokyo, JP)
Assignee: Mitsubishi Gas Chemical Comany, Inc.
C23G1/103H01L21/02063C11D7/10C11D7/3245H01L21/02068C11D11/0047C11D3/33C11D7/3209C11D7/3281C11D7/265C11D7/3263C11D3/0073C11D3/28C23G1/06
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Quick Facts
Patent No.
US 8,802,608
App. No.
12/668,695
Granted
Aug 12, 2014
Kind
B2
Abstract

A composition for cleaning and corrosion inhibition which is used in a step of manufacturing a semiconductor device or a display device having a copper-containing metallic wiring is provided, wherein the corrosion inhibitor component is any one of pyrazole, a pyrazole derivative such as 3,5-dimethylpyrazole, a triazole derivative such as 1,2,4-triazole, an aminocarboxylic acid such as iminodiacetic acid or ethylenediaminedipropionic acid hydrochloride, or a disulfide compound such as diisopropyl disulfide or diethyl disulfide; and the cleaning agent component is any one of ammonium fluoride, tetramethylammonium fluoride, ammonium acetate, acetic acid, glyoxylic acid, oxalic acid, ascorbic acid, 1,2-diaminopropane or dimethylacetamide. Also, a method for manufacturing a semiconductor device or the like using the composition for cleaning and corrosion inhibition is provided.

Claims (13)

1. A composition for cleaning and corrosion inhibition which is used during manufacturing of a semiconductor device or a display device having copper-containing metallic wiring, the composition consisting of a) a corrosion inhibitor component, b) a cleaning agent component and c) water as a remnant, wherein

the corrosion inhibitor component is at least one member selected from the group consisting of pyrazole, 3,5-dimethylpyrazole, 3,5-pyrazoledicarboxylic acid monohydrate, pyrazole-1-carboxamidine hydrochloride, 3-amino-5-hydroxypyrazole, 1-phenylpyrazole, 3-amino-4-phenylpyrazole, 1,2,4-triazole, 4-amino-3,5-dimethyl-1,2,4-triazole, iminodiacetic acid, hydroxyethylenediaminetriacetic acid, glycol ether diaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraminehexaacetic acid, ethylenediaminedipropionic acid hydrochloride, diisopropyl disulfide, dibutyl disulfide and diethyl disulfide;

the cleaning agent component is at least one member selected from the group consisting of ammonium fluoride, tetramethylammonium fluoride, ammonium acetate, acetic acid, glyoxylic acid, oxalic acid, ascorbic acid, 1,2-diaminopropane and dimethylacetamide; and

the corrosion inhibitor component has a concentration of from 0.001 to 5% by mass, and the cleaning agent component has a concentration of from 0.01 to 90% by mass.

2. The composition for cleaning and corrosion inhibition according to claim 1 , wherein the corrosion inhibitor component has a concentration of from 0.001 to 5% by mass, and the cleaning agent component has a concentration of from 0.01 to 90% by mass.

3. A composition for cleaning and corrosion inhibition which is used during manufacturing of a semiconductor device or a display device having copper-containing metallic wiring, the composition consisting of a) a corrosion inhibitor component, b) a cleaning agent component and c) water as a remnant, wherein

the corrosion inhibitor component is at least one member selected from the group consisting of pyrazole, 3,5-dimethylpyrazole, 3,5-pyrazoledicarboxylic acid monohydrate, pyrazole-1-carboxamidine hydrochloride, 3-amino-5-hydroxypyrazole, 1-phenylpyrazole, 3-amino-4-phenylpyrazole, 1,2,4-triazole, 4-amino-3,5-dimethyl-1,2,4-triazole, iminodiacetic acid, hydroxyethylenediaminetriacetic acid, glycol ether diaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraminehexaacetic acid, ethylenediaminedipropionic acid hydrochloride, diisopropyl disulfide, dibutyl disulfide and diethyl disulfide;

the cleaning agent component is at least one member selected from the group consisting of ammonium fluoride, tetramethylammonium fluoride, ammonium acetate, acetic acid, glyoxylic acid, oxalic acid, ascorbic acid, 1,2-diaminopropane and dimethylacetamide; and

the cleaning solution is able to suppress the denaturation of copper during a time from removal of etching residue until just before depositing a diffusion preventive film on a surface of copper wiring and which, at the deposition of the diffusion preventive film, is able to easily remove the corrosion inhibitor component, thereby providing a clean copper surface; and

the corrosion inhibitor component has a concentration of from 0.001 to 5% by mass, and the cleaning agent component has a concentration of from 0.01 to 90% by mass.

4. The cleaning composition of claim 3 , wherein the corrosion inhibitor component is readily removed from the metallic wiring by a heat treatment under a pressure of from 0.001 to 600 Pa and at a temperature of from 100° C. to 300° C.

5. The composition for cleaning and corrosion inhibition according to claim 3 , wherein the corrosion inhibitor component has a concentration of from 0.001 to 5% by mass, and the cleaning agent component has a concentration of from 0.01 to 90% by mass.

6. The composition for cleaning and corrosion inhibition according to claim 1 , wherein the corrosion inhibitor component is readily removed from the metallic wiring by heat treatment under a pressure of from 0.001 to 600 Pa and at a temperature of from 100° C. to 300° C.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 12, 2010
From: SHIMADA, KENJI; MATSUNAGA, HIROSHI; ABE, KOJIRO; YAMADA, KENJI
To: MITSUBISHI GAS CHEMICAL COMPANY, INC.
Reel/Frame 023766/0746 →
Priority Claims (1)
JP 2007-194841 · Jul 26, 2007 · national
Continuity (1)
Related Publication 20100197136A1 · Aug 5, 2010