Patent ID: 6340559
Filing Date: 2002-01-22
Classification: G03F

Abstract:
A composition useful as a developing agent in processing semi-conductor based circuit elements and precursors thereof comprising an aqueous solution of tris-(2-hydroxyethyl)methylammonium hydroxide, wherein the concentration of tris-(2-hydroxyethyl) methylammonium hydroxide is between 10.00% and 80.00% by weight based upon the total weight of the composition, including every hundredth percentage therebetween, and further comprising a stabilizer selected from the group consisting of: N-(2-hydroxypropyl)ethylenediamine; N-(2-hydroxyethyl)-1,2-propylenediamine; N-(2-hydroxypropyl)-1,2-propylenediamine; N-(2-hydroxybutyl)ethylenediamine; N-(2-hydroxybutyl)-1,2-propylenediamine; and N-(2-hydroxyethyl)ethylenediamine.