Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1991-12-23
1993-12-07
Nguyen, Nam
Chemistry: electrical and wave energy
Apparatus
Electrolytic
G01N 2742
Patent
active
052680878
ABSTRACT:
Hull cell has been widely used in the plating industry for many years to evaluate the plating chemistry as a function of current densities. However, because of irreproducible mass transfer, Hull cells can only be used qualitatively for process control. A new design of an improved cell with extremely reproducible mass transfer performance utilizes a rotatable cathode, and permits quantitative analysis of the performance of the cell. The improved cell can also be used to study the mass transfer effect on deposit properties and throwing power, which can not be provided by the traditional Hull cell.
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Alber Oleg E.
AT&T Bell Laboratories
Nguyen Nam
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