| abstract |
A uniform and highly glossy metal layer having good physical-mechanical properties on a substrate is provided. An additive consumption-inhibiting organic compound having the following formula is added to a plating solution: Wherein R, R 1, R 2 and R 3 are independently hydrogen; halogen; (C 1 -C 20) linear, branched, or cyclic alkyl; (C 2 -C 20) linear, branched, or cyclic alkenyl; C2-C20) linear or branched alkynyl; -CN; SCN; -C = NS; -SH; -NO2; SO2H; -SO3M; -PO3M; (C1-C20) alkyl-O (C2-C3O) xR6 , (C1-C12) alkylphenyl-O (C2-C3O) xR6, -phenyl-O (C2-C3O) xR6, where x is an integer from 1 to 500, R6 is hydrogen, (C1-C4) alkyl Or phenyl. [Selection figure] None |