Patent ID: 9005367
Filing Date: 2015-04-14
Classification: B08B,C11D,G03F,H01L

Abstract:
1. A liquid resist stripping composition, comprising: (A) from 40 to 99.95% by weight of a polar organic solvent, which is at least one selected from the group consisting of diethylenetriamine, N-methyl imidazole, 3-amino-1-propanol, 5-amino-1-pentanol, and dimethyl sulfoxide; (B) from 0.05 to 10% by weight of a quaternary ammonium hydroxide; and (C) from 0.05 to 15% by weight of an aromatic amine comprising a primary amino group, wherein: the polar organic solvent (A) exhibits a constant removal rate at 50° C. of a 30 nm thick polymeric barrier anti-reflective layer comprising a deep UV absorbing chromophoric group, in the presence of from 0.06 to 4% by weight of dissolved tetramethylammonium hydroxide (B) based on a total weight of a test solution (AB) comprising the polar organic solvent (A) and the tetramethylammonium hydroxide (B); the composition does not comprise hydrogen peroxide; and the composition comprises less than 2% by weight of water.