The nomenclature sets the stage for understanding the underlying reactions that make ferric chloride good at etching copper. In solution, ferric chloride rapidly dissociates into iron (III ...

The chemistry for any etching setup is important, and in recent years the entire community has moved from ferric chloride to copper chloride for a very good reason: you can recharge copper ...

The copper which is not protected by an etch resist is removed by the etching process. The following are the commonly used etching methods: Ferric chloride etching solutions are widely used in the ...