Optical method for validation of changes in the cleaning process and cleaning process optimization

Currently, electronic assemblies are more complex and compact. Requirements on the reliability of electronic assemblies in a harsh environment are rapidly growing. Assemblies become dense, with small distances between poles. Processing of low and very high-frequency signals requires high values of surface insulation. Experiences confirm that using No-clean soldering technology has only limited efficiency in protection against leakage current, ion migration, and corrosion.