I can't find anyway to produce raw wood early game so i couldn't create basic circuit board for research!
Can you help me? :D

There are other ways to make wood plates/wooden boards. Should I spoil it? (FNEI mod is your friend here ;))

Thank you! I have installed FNEI! Really nice mod!

Can you spoiler it for me? I tried using FNEI mod to look and still have no idea how to get basic circuit board.

Yes. IIRC
Wooden board <- Paper <- Cellulose Pulp <- Alginic Acid + Cellulose Fiber
Aliginc Acid comes from Brown Algae (Saline Water + Oxygen in big green Algae Farm)
Cellulose Fiber comes from Green Algae (CO2 + Mineralized Water)
It's really slow

Not too far off, you can create wood plates from cellulose paste, which is much faster

In FNEI menu, after inserting the item name, left click to show "how to CREATE that item", right click to show "how to USE that item".
Hope this can help you!

Thanks it worked! I thought Green Algae Processing technology was needed because it was shown for cellulose fiber but turns out it was not needed.