Electrolytic apparatus and process

Details Electrolytic apparatus and process Electrolytic apparatus and process

1986-02-03

1987-08-18

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

C25D 500

Patent

active

046875549

ABSTRACT:
An improved electrolytic apparatus and process particularly applicable for high-speed electrodeposition of a metallic plating on a substrate such as on a printed wiring board of the type employed in the electronic industry. The apparatus employs a manifold assembly adapted to be immersed in the electrolyte and positioned adjacent to each of the anodes immersed therein for withdrawing electrolyte past the anode to provide a controlled rate of flow across the anode surface to achieve a substantially uniform mass transport rate across the fluid film on the surface of the anode. The apparatus is also adapted for returning at least a portion of the withdrawn electrolyte to the tank which can be arranged so as to impinge upon the article being plated.

REFERENCES:
patent: 4174261 (1979-11-01), Pellegrino
patent: 4269669 (1981-05-01), Soby
patent: 4391694 (1983-07-01), Runsten
patent: 4507180 (1985-03-01), van der Werf

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