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VINC767
1 year ago

The board itself is often made of FR-4. Exposid resin and glass fibre fabric.

The green is solder resist. Can also make in other colors.

SMD (Surface Mounted Devices) components can be seen on the board. Pair of keywords are capacitors, resistors, ICs. You can also see Vias and the copper tracks

FlockeFindet
1 year ago

It’s called solder resist. Soldermask.

It can be made in any color.

ultrarunner
1 year ago

The board usually consists of epoxy resin, and the green is solder stop lacquer.