Alkanolamine semiconductor process residue removal composition and process

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United States of America Patent

PATENT NO 6564812
APP PUB NO 20020183219A1
SERIAL NO

10160035

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Abstract

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A two carbon atom linkage alkanolamine compound composition comprises the two carbon atom linkage alkanolamine compound, gallic acid or catechol, and optionally, an aqueous hydroxylamine solution. The balance of the composition is made up of water, preferably high purity deionized water, or another suitable polar solvent. A process for removing photoresist or other residue from a substrate, such as an integrated circuit semiconductor wafer including titanium metallurgy, comprises contacting the substrate with the composition for a time and at a temperature sufficient to remove the photoresist or other residue from the substrate. Use of the two carbon atom linkage alkanolamine compound in the composition and process provides superior residue removal without attacking titanium or other metallurgy, oxide or nitride layers on the substrate.

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Patent Owner(s)

Patent OwnerAddress
EKC TECHNOLOGY INC2520 BARRINGTON COURT HAYWARD CA 94545

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Wai Mun Fremont, CA 93 1252

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