CONFORMAL COATINGS FOR PRINTED CIRCUIT ASSEMBLIES
Abstract:
Contents Epoxy resin coating systems Characteristics, precoating preparation of surface, cleaning, soldering, method of coating application, physical and electrical properties, appearance, and adhesion, thick ness measurements, dielectric constants and dissipation factor of disc specimens, dissi pation and Q factors of coated test panels, dielectric withstanding voltage, thermal cycling, insulation and abrasion resistance, ruggedization, flexibility Polyurethane resin conformal coatings on XXXP and glass-epoxy, copper-clad laminates Silicone-based polymer coatings on glass-epoxy and silicone-glass copper-clad laminates MIL-V-173 varnishes on glass-epoxy, XXXP and paper-epoxy laminates Method of removing coatings from boards Chemical stripping of conformal coating Mechanical stripping of conformal coating.