Patent ID: 6432621
Filing Date: 2002-08-13
Classification: G03F

Abstract:
A resist developer obtained by a process comprising mixing:(1) at least one compound selected from the group consisting of a basic compound A and an organic compound B having phenolic hydroxyl group and carboxyl group in a molecule, with (2) a salt C formed between the basic compound A and the organic compound B, wherein said basic compound A is represented by the formula (II): â€ƒwherein each of R4, R5, R6, and R7 is independently an alkyl group having 1 to 6 carbon atoms, an aralkyl group having 7 or 8 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group having 6 to 8 carbon atoms, a hydroxyalkyl group having 1 to 6 carbon atoms or an alkoxyalkyl group having 2 to 6 carbon atoms, wherein a ratio of a sum of an equivalent of the organic compound B and an equivalent of the organic compound B constituting the salt C to a sum of an equivalent of the basic compound A and an equivalent of the basic compound A constituting the salt C is from 0.001 to 0.80, and wherein a sum of a content of the basic compound A and a content of the basic compound A constituting the salt C is from 1 to 10% by weight.