Composition for removing polymer residue of photosensitive etching-resistant layer

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United States of America Patent

PATENT NO 7858572
SERIAL NO

12087137

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Abstract

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Provided is a composition for removing polymer residue of a photosensitive etching-resistant layer. The composition includes 0.1 to 80% by weight of a corrosion inhibitor shown in Formula 1; 10 to 80% by weight of a pH control agent of which hydrogen ion concentration is in a weak basic range; 0.1 to 2% by weight of ammonium fluoride; and the remaining percentage by weight of water. The composition for removing the polymer residue can effectively remove insoluble residue generated during a semiconductor fabrication process without inflicting damage on an underlying layer and contains environment-friendly components.

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Patent Owner(s)

Patent OwnerAddress
LTC CO LTD(KYEONGGI HWASUNGBIOBELLY) 114 CHEONGWONSANDAN 8-GIL MADO-MYEON GYEONGGI-DO HWASEONG-SI 14067

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choi, Ho Sung Anyang-shi, KR 13 22
Kim, Deok Ho Yongin-shi, KR 9 114

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