> Reversibility means you can etch, and then plate, Does this mean you can use a chemical to etch a board, then somehow reverse the reaction and use the "spent" chemical to lay the removed copper down on other parts of the board (such as inside holes)? After plating does the chemical end up in its original form, so it can then be used for etching again, and so on ad infinitum in a closed loop?
Does such a chemical exist? Can standard chemicals (such as Ferric Chloride) be used in such a manner, in combination with electrolysis? John
