What type of silkscreen ink is used in PCB manufacturing?

Sometimes, my PCB supplier mentions about silkscreen ink when it comes to logo printing. I am curious about the types and features of different inks.

pcb manufacturing
September 19, 2023

There were 2 different inks used in practice-Solder mask and legend ink.

The solder mask is used to cover the entire PCB board and is usually green, but it can be almost any color. It is UV activated, so the areas that are masked can be scrubbed off while the UV- exposed areas are permanent.

The legend is not necessary, but nice to have for placing the components later. Legend ink is an epoxy with a very long drying time. Cure it in an oven to quicken the drying time.

#PCB manufacturing

Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

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