Formulated to remove dirt, oil, fingerprints and other soils from copper surfaces without etching the copper. ULTRACLEAN NF is especially recommended for cleaning Invar/copper laminate and double treated copper foil. Also for use prior to resist lamination, oxide treatment and plating processes. Its non-chelating formula allows for easy waste treatment. ULTRACLEAN NF is non-foaming for use in conveyorized spray applications.
FlexClean DM is a powerful, non-foaming and free rinsing alkaline cleaner specifically formulated to clean copper on exposed alkalisensitive substrates including polyimide. It will remove oven baked residues, oxidation, fingerprints and oils, all without attack of alkali sensitive substrates or removal of any copper metal. Use of FlexClean DM will leave the copper surface bright, oxidation-free and ready for photoresist application or oxide process. FlexClean DM may be used in conjunction with an acid cleaner, or if required, a light microetch. If a microetch is used, much lower levels of metal are fully acceptable thus minimizing costs and reject rate.
PreLam Cleaner is a cleaner/microetch/adhesion promoter for use on copper and other metals. It will give optimal resist adhesion both initially and during subsequent processing, where other chemicals can weaken the bond at the copper/photoresist interface. PreLam Cleaner S yields a non-traditional looking panel with a bright orange color rather than a more typical matte pink.