VersaPrep is formulated to microetch multiple metallic surfaces and thus improve their processing including lamination, imaging and solder mask application. Microetching results in surfaces that are cleaner, with removed or reduced oxide and with higher roughness. These mechanisms occur to a different extent on different metals. VersaPrep is effective on aluminum, stainless steel, copper, copper alloys and selected other alloys such as Inconel. Different substrates can be treated with simple adjustments of concentration, temperature and contact time. VersaPrep can be used in either spray or soak mode.
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.
HASL Precleaner SLTM is a powerful, non-foaming, free rinsing, alkaline cleaner specifically designed to clean copper prior to HASL or alternative finishes. It will remove solder mask developer scum, oven baked oxidation and residues, fingerprints, and oils. HASL Precleaner SLTM will not etch copper nor will it damage the. HASL Precleaner SLTM can be used in conjunction with a light microetch or acid cleaner. If an acid cleaner is used, MicroCleanTM ZE is preferred. If a microetch is used, much lower levels of metal removal are fully acceptable, thus minimizing costs and reject rate. Because of the potent cleaning agents that destroy organo-metallic compounds (such as insoluble copper/soldermask compounds) present on the copper surfaces, use of HASL Precleaner SLTM will reduce the requirement for a second pass through the HASL.
A liquid persulfate-based copper microetch that is pre-mixed with sulfuric acid. ME 515L removes copper uniformly, providing good topography for subsequent processing. It can be used wherever a microetch is needed; prior to plating, resist lamination, solder mask over bare copper application, or solder leveling. ME 515L can be used in either soak or spray applications.