Etching PCB 2 of 2

(Continued...)

6a) Dip the board into Ferric Chloride acid to remove the copper layer. Shake the container momentarily for faster results.....









6b) Notice that the copper layer has been wash/wipe off....











7) After a few minutes of acid bath process... the expose copper layer is totally removed.











8) Wash the board with water to clean the remaining acid...











9) Clean the printed ink with alcohol or spirit...