Copper corrodes quickly when exposed to oxygen. You must protect copper traces on outer layers from corrosion by passivation or by coating them with an inert material. Passivation refers to any ...

There are plenty of ways to make printed circuit boards at home but for some features it’s still best to go to a board shop. Those features continue to decrease in number, but not a lot of people can ...

The cheapest PCBs – and therefore most common – are green solder mask with white silkscreen. It works, but it’s also incredibly boring. This is the way things were done up until a few years ago with ...