Calculation of the Copper Dissolved by P.C. Etchants

Abstract

A formula is derived for the calculation of the amount of copper dissolved by a litre of new etchant for machines in which losses are made up by periodic additions of water. The only parameters necessary are the number of make‐up additions and the initial and final concentrations of copper and of a constituent that is neither decomposed nor added to during the life of the solution.

Citation

Freeman, A. (1975), "Calculation of the Copper Dissolved by P.C. Etchants", Circuit World, Vol. 1 No. 2, pp. 46-48. https://doi.org/10.1108/eb043517