Method of measuring thickness of a tin layer and thickness measu

Details Method of measuring thickness of a tin layer and thickness measu Method of measuring thickness of a tin layer and thickness measu

1981-02-05

1983-08-30

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204400, G01N 2726, G01N 2728

Patent

active

044015186

ABSTRACT:
An electrolyte chamber has an opening on the side facing the foil to be measured for letting the electrolyte through to the foil, a hollow cathode in the chamber, a supply line connected to the chamber through the hollow cathode for supplying the electrolyte to the chamber, and a negative pressure flow-off line connected to the chamber located at a distance from the mouth of the supply line. A negative pressure generator is connected to the flow-off line through a separator vessel which has a level switch which shuts off the generator when the electrolyte reaches a predetermined level. The supply line is connected to a supply vessel containing the electrolyte and runs continuously into the liquid volume in the vessel. The vessel has a connection to the atmosphere.

REFERENCES:
patent: 2457234 (1948-12-01), Herbert et al.
Stanley Anderson et al., The Electrochemical Society, Preprint 78-3, pp. 37-46, (1940).

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