Chemical deposition of copper from alkaline aqueous baths

摘要

Copper is chemically deposited from alkaline aqueous baths containing polyacetal complexing agents obtainable by reacting (a) dialdehydes of the formula OHCAnCHO, where A is CH2, CH2CH2, CH2CH2CH2, <IMAGE> and n is 0 or 1, with (b) polyolcarboxylic acids which contain 2 or more OH groups and have from 4 to 7 carbon atoms in a molar ratio of (a):(b) of from 1:0.5 to 1:3.