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April 1997

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Fri, 11 Apr 1997 10:32:07 -0400 (EDT)
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In general, imbalanced concentration of  organic additives in the plating
bath can cause all kinds of plating problems from poor throwing power, voids
at the knees to co-deposition of organic contaminants on the substrate.

An electroanalytical technique called CVS (Cyclic Voltammetry Stripping) has
been around for a number of years and it is used by a large number of plating
shops. The CVS technique allows to accurately measure the concentration of
organic additives in the plating bath such as brighteners and wetting agents.


The CVS technique can measure the concentration of the organic additives in
mL/L of concentration and the level of contamination in the bath. This
information can be helpful for controlling the plating process, since you
would know exactly how much additive to replenish or when is time to carbon
treat.  

In addition, the CVS technique is a nice complement to the hull cells, which
are very subjective, for total control of the plating bath.

Talk to your supplier about the uses of CVS or contact us for more detailed
information.

Good Luck,

Lou Madge
ECI Technology, Inc.
201-773-8686
Fax 201-773-8797

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