Does NanoClear SMT Stencil Nano-Coating Coat the Aperture Wall?

We often get asked whether SMT stencil nano-coatings like NanoClear fully coat the aperture wall? In this technical bulletin we will cover the test data that proves that NanoClear SMT stencil nanocoating completely coats the aperture walls.

Technical Bulletin Series

YES! NanoClear SMT Stencil Nano-Coating Completely Coats the Aperture Walls!!

NanoClear coats both the PCB contact surface AND the aperture walls. Transmission Electron Microscopy (TEM) analysis is used to detect it and quantify the thickness of the nanolayer.

To test for NanoClear on aperture walls, samples were taken from a stencil before and after coating.
To prepare the samples for the tests, a layer of chromium was applied to the stencils with nanocoating. Carbon-based ink and platinum are then applied to all stencil samples.

The TEM images below show the sidewalls with and without coating:

TEM analysis confirms presence of NanoClear on aperture walls. Thickness is Approximately 1-5nm - a True NanoCoating!

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