Copper bath for electroless plating having excess counter-cation

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge

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204DIG13, 204130, 204151, 106 123, 106 126, 427345, 427437, B01D 1302, C23C 1816

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active

047626011

ABSTRACT:
An electroless copper plating bath is improved so as to facilitate its regeneration in an electrodialysis cell. The bath includes elevated amounts of an added salt, preferably as Na salt. The elevated sodium ion level serves as additional counter-cation to hydroxyl ion which is produced at the cathode of the electrodialysis cell. The excess anion from the added salt increases the rate of out-migration of by-products, such as formate ions and sulfate ions, relative to hydroxyl ions through an anion permselective membrane.

REFERENCES:
patent: 3754940 (1973-08-01), Kadison et al.
patent: 4289597 (1981-09-01), Grenda
patent: 4549946 (1985-10-01), Horn
patent: 4600493 (1986-07-01), Korngold
G. Krulik et al., Galvanotechnik n. 11, V. 76 (1985) pp. 1806-1811.
H. Homma et al. Japan Metal Finishing Technology 34 Jan. 1984 pp. 47-52.
G. Krulik et al. PC FAB Aug. 1986, pp. 28-35.
F. A. Domino, Plating of Plastics, Recent Developments pp. 282-292 Noyes Data Corp., Park Ridge, N.J. 1979.

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