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Pcb manufacture has long used screen printing techniques to apply solder paste and label stencils. The new part here is using it to apply things like conductive
by digikata 5y ago
Pcb manufacture has long used screen printing techniques to apply solder paste and label stencils. The new part here is using it to apply things like conductive ink traces.
I would think there are different electrical characteristics to account for - as the article alludes to, but also strength of bond to the substrate (esp for components like connectors).
- madengr 5y agoLTCC has used screen printing of conductive pastes for decades. https://en.m.wikipedia.org/wiki/Co-fired_ceramic https://en.m.wikipedia.org/wiki/Co-fired_ceramic
- SG16 5y agoThe adhesive strength of inks to the substrate is measured with two tests: a tape test with 3M Scotch 234 and the conventional cross cut test. Usually, the change in electrical resistance is taken into account while performing these tests. For high frequency or radio applications, the surface roughness of the dry film is important.