Ресурсосберегающая экологически чистая технология травления печатных плат кислыми и щелочными меднохлоридными растворами

Abstract

The compositions of initial and waste acidic and alkaline printed board etching solutions well as of the adjusting solutions, washing water and water used for the preparation of these solutions and finish printed board rinsing, are investigated on basic components and impurities. Foreign impurities arising during technological solutions usage has been established to influence not the printed board etching process, therefore the quality of printed boards. Waste technological solutions has been shown to be useful as counterflow-aluate water could be useful for the preparation of finishing ammoniac rinsing solution. Waste solution of finishing ammoniac rinsing could be useful for the initial ammoniac rinsing aluate preparation.