Limitations of Nano-Coatings for PCBs
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27/10/2024
In conclusion, there remains no clear definition of what constitutes a nano-conformal coating for printed circuit boards. Coating needs range from very thin to those applied at or near traditional technologies when the highest performance is required. When used at their nano-thicknesses, there are many serious concerns in areas such as abrasion and wear resistance, moisture and solvent vapor resistance, and others. The typically high cost of these coatings as well as the potential to require significant changes to application equipment are also negative considerations for coatings of this family.
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