IP Library Granted Patent US 7,671,002
Granted Patent B2
US 7,671,002 · App. 11/415,266 · Granted Mar 2, 2010

Composition and method for removing copper-compatible resist

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Quick Facts
Patent No.
US 7,671,002
App. No.
11/415,266
Granted
Mar 2, 2010
Kind
B2
Abstract

A composition for removing a copper-compatible resist includes: about 0.1% to about 10% by weight of an alkylbenzenesulfonic compound; about 10% to about 99% by weight of a glycolether compound; and about 0.5% to about 5% by weight of a corrosion inhibitor.

Claims (8)

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

about 0.1% to about 10% by weight of an alkylbenzenesulfonic compound;

about 10% to about 99% by weight of a glycolether compound; and

about 0.5% to about 5% by weight of a corrosion inhibitor, wherein the corrosion inhibitor includes one of mercapto compound, one of triazole compound and one of antioxidant.

2. The composition according to claim 1 , wherein the glycolether compound has a composition ratio within about 85% to about 99% by weight.

3. The composition according to claim 1 , wherein the alkylbenzenesulfonic compound includes at least one of benzenesulfonic acid, toluenesulfonic acid, dodecylbenzenesulfonic acid, tetrapropylbenzenesulfonic acid and phenolsulfonic acid.

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

5. The composition according to claim 1 , wherein the triazole compound includes tolyltriazole, benzotriazole, aminotriazole, carboxylbenzotriazole, wherein the antioxidant includes succinic acid, benzonic acid, citric acid and catechol, wherein the mercapto compound includes mercaptobenzodiazole, mercaptoethanol, mercaptopropanediol, mercaptosuccinic acid.

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 May 2, 2006
From: JO, GYOO-CHUL; CHAE, GEE SUNG; KWON, OH-NAM; LEE, KYOUNG-MOOK; HWANG, YONG-SUP; KIM, SEONG-BAE; JANG, SUK-CHANG
To: LG.PHILIPS LCD CO., LTD; DONGJIN SEMICHEM CO., LTD.
Reel/Frame 017850/0902 →