Mixture of oligomeric phenazinium compounds and acid bath...

Details Mixture of oligomeric phenazinium compounds and acid bath... Mixture of oligomeric phenazinium compounds and acid bath...

C - Chemistry, Metallurgy

07

D

C07D 241/46 (2006.01) C25D 3/38 (2006.01) C25D 7/12 (2006.01) H05K 3/42 (2006.01)

Patent

CA 2502717

For the reproducible manufacturing of particularly uniform and brilliant i.e., highly bright copper coatings that are leveled and ductile as well, a copper plating bath is utilized that contains as an additive a mixture of oligomeric phenazinium compounds. The mixture contains at least one phenazinium compound selected from the group comprising compounds containing two monomeric units and compounds containing three monomeric units having the general chemical formulae <I> and <II> set forth in the patent claims and in the specification as well as further oligomeric phenazinium compounds.

Selon la présente invention, un bain de cuivrage contenant, en tant qu'additif, un mélange de composés de phénazinium oligomères est utilisé dans la production reproductible de revêtements de cuivre brillants, c.-à-d. hautement lumineux, et particulièrement uniformes, nivelés et ductiles. Ledit mélange contient au moins un composé de phénazinium, sélectionné dans le groupe constitué par des composés contenant deux unités monomères et par des composés contenant trois unités monomères présentant les formules chimiques générales <I> et <II> énoncées dans les revendications et dans la spécification, ainsi que d'autres composés de phénazinium oligomères.

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