Green circuit requiring wood is strange in my mind.
We could add a new resource called "cassiterite ore" that require smelting with coal giving us a tin plate.
We take that tin plate and process it with assembly machine to get a coil of solder wire.
That wire is now a requirement for green, red, blue and purple circuits and for all tech cards except basic and space cards.
Recipe for smelting is like copper and iron. 10 ore for one plate
Recipe for solder wire is like copper cable. 1 tin plate for 2 coil of solder wire.