IP Library Granted Patent US 7,662,763
Granted Patent B2
US 7,662,763 · App. 11/185,856 · Granted Feb 16, 2010

Composition and method for removing copper-compatible resist

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Quick Facts
Patent No.
US 7,662,763
App. No.
11/185,856
Granted
Feb 16, 2010
Kind
B2
Abstract

A composition for removing a copper-compatible resist includes about 10% to about 30% by weight of an amine compound, about 10% to about 80% by weight of a glycolether compound, and about 10% to about 80% by weight of a polar solvent.

Claims (9)

1. A method for removing a copper-compatible resist, comprising:

providing a composition, including combining about 10% to about 30% by weight of an amine compound with about 10% to about 80% by weight of a glycolether compound and about 10% to about 80% by weight of a polar solvent, wherein the composition consists of only three materials which are the amine compound, the glycolether compound and the polar solvent; and

removing a copper-compatible resist using the composition.

2. The method according to claim 1 , wherein the amine compound includes at least one of N-methylethanolamine, N-ethylethanolamine, diethylethanolamine and dimethylethanolamine.

3. The method according to claim 1 , wherein the glycolether compound includes at least one of ethyleneglycolethylether, ethyleneglycolmethylether, ethyleneglycolbutylether, diethyleneglycolbutylether, diethyleneglycolethylether, diethyleneglycolmethylether and diethyleneglycolpropylether.

4. The method according to claim 1 , wherein the glycolether compound has a boiling point more than about 180° C.

5. The method according to claim 1 , wherein the polar solvent includes at least one of N-methyl-2-pyrrolidinone, N,N-dimethylacetamide, N,N-dimethylpormamide and N,N-dimethylimidazole.

6. The method according to claim 1 , wherein the amine compound includes N-methylethanolamine, the glycolether compound includes at least one of diethyleneglycolethylether and diethyleneglycolpropylether, and the polar solvent includes N-methyl-2-pyrrolidinone.

7. The method according to claim 1 , wherein the glycolether compound has a molecular weight of less than about 150.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2010
From: CHAE, GEE-SUNG; HWANG, YONG-SUP; JO, CYOO-CHUL; KWON, OH-NAM; LEE, KYOUNG-MOOK; KIM, BYUNG-UK; LEE, SANG-DAL; YOO, JONG-SOON
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 024279/0821 →
CHANGE OF NAME Recorded Oct 17, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 021763/0177 →