CYAN-RESISTANCE IMPARTING AGENT FOR PALLADIUM OR PALLADIUM ALLOY PLATING, PLATING SOLUTION, AND CYAN-RESISTANCE IMPARTING METHOD TO PLATING SOLUTION

摘要

PROBLEM TO BE SOLVED: To provide a cyan-resistance imparting agent for palladium or palladium alloy plating capable of suppressing to the minimum a bad influence by cyan which may be intermingled during plating or substantially eliminating the bad influence.;SOLUTION: There is provided a cyan-resistance imparting agent for palladium or palladium alloy plating comprising an aromatic compound having an electron-deficient portion on an aromatic ring by a resonance effect generated by having an electron-attractive substituent and/or an electron-withdrawing ring member hetero atom.;SELECTED DRAWING: None;COPYRIGHT: (C)2016,JPO&INPIT