SEARCH Articles Figures Tables Linear plats of the effect of current density an the porasity, expressed as p.p.m. Cu, for three different gald-plating baths. The numbers next ta each point show the actual average thickness Orm for each test. Bath A was a proprietary alkaline cyanide bath using silver as a brightener. Bath D was an acid gold bath containing cobalt and an ethylenediamine tetraacetic [Publishers Imprint]