Patent ID: 6323169
Filing Date: 2001-11-27
Classification: C11D,G03F,H01L

Abstract:
An aqueous resist stripping composition containing (a) 0.0001 to 60% by weight of an oxidizing agent, (b) 0.01 to 5% by weight of a chelating agent which is at least one compound selected from the group consisting of aminopolycarboxylic acids, ammonium salts of the aminopolycarboxylic acids, metal salts of the aminopolycarboxylic acids, organic alkali salts of the aminopolycarboxylic acids, phosphonic chelating agents, ammonium salts of the phosphonic chelating agents, organic amine salts of the phosphonic chelating agents, alkali metal salts of the acids, ammonium salts of the condensed phosphoric acids, metal salts of the condensed phosphoric acids, and organic amine salts of the condensed phosphoric acids and (c) 0.001 to 10% by weight of a water-soluble fluorine compound which is at least one compound selected from the group consisting of ammonium fluoride, acid ammonium fluoride, monoethanolamine fluoride, and tetramethylammonium fluoride, the balance being water.