IP Library Granted Patent US 7,384,900
Granted Patent B2
US 7,384,900 · App. 10/924,841 · Granted Jun 10, 2008

Composition and method for removing copper-compatible resist

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Quick Facts
Patent No.
US 7,384,900
App. No.
10/924,841
Granted
Jun 10, 2008
Kind
B2
Abstract

A composition for removing a copper-compatible resist includes about 10 to 30% by weight of an amine compound solvent, the amine compound solvent including an alkanol amine, about 10 to 80% by weight of a glycol group solvent, about 9.5 to 80% by weight of a polar solvent, and about 0.5 to 10% by weight of a corrosion inhibitor.

Claims (7)

1. A method for removing a copper-compatible resist, comprising combining about 10 to 30% by weight of an alkanol amine solvent, combining about 10 to 80% by weight of a glycol group solvent, combining about 9.5 to 80% by weight of a polar solvent, and combining about 0.5 to 10% by weight of a corrosion inhibitor,

wherein the the alkanol amine solvent is selected from at least one of an alkyl group consisting of N-methylethanolamine, N-ethylethanolamine, diethylethanolamine and dimethylethanolamine, and

wherein the corrosion inhibitor is selected from an mercapto group consisting of mercaptobenzodiazole, mercaptoethanol, mercaptopropanediol, dimethylthiophenol, propylthiophenol, methoxythiophenol, methylthiophenol, thioanisole, tert-butylthiophenol, tert-buthyl-2-methylthiophenol, mercaptomethylimidazole, and mercaptomethylbenzimidazole.

2. The method according to claim 1 , wherein the glycol group solvent has a boiling point higher than about 180° C.

3. The method according to claim 1 , wherein the glycol group solvent is selected from one of glycolic solvent and glycol ethers solvent.

4. The method according to claim 2 , wherein the glycol group solvent is selected from at least one of the group consisting of ethyleneglycol-methylether, ethyleneglycol-ethylether, ethyleneglycol-buthylether, diethyleneglycol-methylether, diethyleneglycol-ethylether, diethyleneglycol-propylether, diethyleneglycol-butylether, ethyleneglycol, diethyleneglycol, tri-ethyleneglycol, and tetra-etyleneglycol.

5. The method according to claim 1 , wherein the polar solvent is selected from at least one of the group consisting of N-methyl-2-pyrrolidone, N,N-dimethylacetamide, N,N-dimethylformamide, and N,N-dimethylimidazol.

Assignments (2)
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021763/0177 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2004
From: JO, GYOO-CHUL; KWON, OH-NAM; HWANG, YONG-SUP; JANG, SUK-CHANG; CHAE, GEE-SUNG; LEE, KYOUNG-MOOK; KIM, SEONG-BAE; YOON, SUK-IL
To: LG PHILIPS LCD CO., LTD.; DONGJIN SEMICHEM CO., LTD.
Reel/Frame 015730/0820 →