Patent ID: 7790009

Claim:
A method for forming structures on an electrically conductive surface of a substrate, comprising: providing a master electrode for receiving soluble anode material, the master electrode having an electrically conductive surface less soluble than the soluble anode material, and an insulating pattern layer arranged directly on the less soluble surface, the insulating pattern layer cooperating with the less soluble surface to define at least one cavity substantially devoid of soluble anode material; positioning the master electrode in electrical contact with the soluble anode material using an electrolyte solution; depositing a quantity of soluble anode material on the less soluble surface of the cavity, wherein the arranging of the insulating pattern layer directly on the less soluble surface prevents soluble anode material from being disposed between the less soluble surface and the insulating pattern layer; bringing the master electrode in close contact with the electrically conductive surface of the substrate; and plating at least one pattern structure on the substrate by electrochemically transporting, through an electrolyte solution, the soluble anode material from the cavity to the electrically conductive surface of the substrate, wherein the insulating pattern layer is arranged directly on the less soluble surface in a manner substantially preventing undercutting of the insulating pattern layer during plating.