Electroless plating bath of iridium

Details Electroless plating bath of iridium Electroless plating bath of iridium

1997-05-06

1999-02-02

Gorgos, Kathryn L.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

427306, C23C 1854

Patent

active

058658815

ABSTRACT:
The present invention relates to a plating bath of the hydrazine type for electroless plating on the surface of a plated substance with iridium. The first plating bath is an electroless plating bath of iridium which contains a hydrazine complex of iridium and has pH of 1-7. The second plating bath is an electroless plating bath of iridium which contains hydrazine hydrate and/or hydrazinium salt, and iridium halide and/or halogenoiridate in the molar ratio of 1-1.0 and has pH of lower than 3. The plating bath of this invention is used, for example, for producing of a junction of a cation exchange membrane and iridium, which is used for a water electrolytic cell of the macromolecule solid electrolyte type.

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