The electro-deposition of metal coating on a conductive object. The metal may be conductive or non-conductive. The object is placed in an electrolyte and connected to one terminal of a DC voltage source. The metal to be deposited is similarly immersed and connected to the other terminal. This creates a current flow from the metal to the conductive material thus depositing the material. In PCB manufacturing, it is used to apply copper to the hole walls and copper conductor pattern.
