Electroless plating solution

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

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106 123, 106 125, 106 127, C23C 1834

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active

058976922

ABSTRACT:
An electroless plating solution having high stability and capable of preventing the formation of nodules is disclosed. The electroless plating solution includes metal ions which includes nickel ions and copper and/or cobalt ions, a complexing agent containing a hydroxycarboxylic acid and a reducing agent and having a pH of at least 7, and an anionic surfactant. The electroless plating solution further includes iron ions provided by a source selected from potassium ferrocyanide and potassium ferricyanide. The completing agent is preferably used in a molar amount at least equal to that of the metal ions. The electroless plating solution is preferred to contain from 1 mg/L to 0.2 g/L of iron ions and from 10 ppm to 10 g/L of the anionic surfactant.

REFERENCES:
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patent: 3716462 (1973-02-01), Jensen
patent: 3717482 (1973-02-01), Gulla et al.
patent: 4080207 (1978-03-01), Leone et al.
patent: 4303443 (1981-12-01), Miyazawa et al.
patent: 5269838 (1993-12-01), Inoue et al.
patent: 5753304 (1998-05-01), Tung
Dialog abstract of JP02/301591, Dec. 1990.

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