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1. (WO2017036816) IMIDAZOYL UREA POLYMERS AND THEIR USE IN METAL OR METAL ALLOY PLATING BATH COMPOSITIONS

Pub. No.:    WO/2017/036816    International Application No.:    PCT/EP2016/069683
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Aug 20 01:59:59 CEST 2016
IPC: C08G 71/02
C25D 3/38
Applicants: ATOTECH DEUTSCHLAND GMBH
Inventors: BRUNNER, Heiko
KOHLMANN, Lars
WITCZAK, Agnieszka
MANN, Olivier
Title: IMIDAZOYL UREA POLYMERS AND THEIR USE IN METAL OR METAL ALLOY PLATING BATH COMPOSITIONS
Abstract:
The present invention relates to imidazoyl urea polymers and their use in aqueous acidic plating baths for metal or metal alloy deposition such as electrolytic deposition of copper or alloys thereof in the manufacture of printed circuit boards, IC substrates, semiconducting and glass devices for electronic applications. The plating bath according to the present invention comprises at least one source of metal ions and an imidazoyl urea polymer. The plating bath is particularly useful for filling recessed structures and build-up of pillar bump structures.