Nano Coated Stencil

The ongoing trend for miniaturization of electronic devices ensures that the surface mount assembly process will continue to provide new challenges. Components and stencil apertures are getting smaller and tighter in pitch. The demands on the solder paste printing process require improvements in technology.

Nano-coatings for stencils have been available for many years. The coatings are supplied in two common forms. The most common form is a multiple step liquid coating which is applied by wiping onto the stencil and drying in ambient air. A less common form of nano-coating is spray coated by stencil.