Patent ID: 8114263
Filing Date: 2012-02-14
Classification: C08F,C25D,H05K

Abstract:
1. An aqueous acidic solution for electrolytically depositing copper coatings said acidic solution containing copper ions, characterized in that said solution contains at least one polyvinylammonium compound selected from the group comprising compounds having general chemical formula (I): wherein l, m and n are indices of monomer units indicating the fraction, to be expressed in [mole %], of the respective monomer units in the polyvinylammonium compound, wherein l+m+n in the compound is 100 mole % with the proviso that 1) l+m is in a range of from 1 to 100 mole %, relating to l+m+n, and n is in a range of from 99 to 0 mole %, relating to l+m+n, and 2) m is in a range of from 1 to 100 mole %, relating to l+m, and l is in a range of from 99 to 0 mole %, relating to l+m, R R R A