The images shown below were produced by a University Institute using a scanning electron microscope.
Stencil produced by etching technology
pad screen 300Âµm
Stencil produced by laser technology
pad screen 250Âµm, pad aperture 120Âµm
This comparison test of a well-known German electronics company produced the following results:
Straight vertical walls, wall smoothness, and dimensional precision define SMT stencil performance. Typical PNC Stencil walls are shown below:
Uniform apertures with smooth walls render consistent paste volume.
Laser cut precision with software driven repeatability affords exceptional dimensional accuracy.