Apparatus for electrodepositing a metallic layer of predetermine

Details Apparatus for electrodepositing a metallic layer of predetermine Apparatus for electrodepositing a metallic layer of predetermine

1980-02-13

1981-09-01

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204224R, C25D 2112, C25D 1700

Patent

active

042870437

ABSTRACT:
An apparatus for electrodepositing a layer of predetermined layer thickness has an anode supplied with DC voltage by a converter device. A programmable computer having inputs for the desired value of the layer thickness and for technological parameters, such as anode index and area factor, cyclically sums the current charge as the integral of current from digitized sampling values of the anodes current and determines therefrom the actual value of the layer thickness. When the desired thickness value is reached, the converter device is disconnected.

REFERENCES:
patent: 3042603 (1962-07-01), Kelley et al.
patent: 3669868 (1972-06-01), Lieber et al.
patent: 4100036 (1978-07-01), Rode et al.

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