An electrode has a unitary ring with an exterior surface, interior surface, and at least two edges. The electrode also includes a seat formed in at least the exterior surface of the unitary ring. The seat is configured and arranged for attachment of a terminal end of a lead wire, disposed in the seat, to the electrode. A lead includes a lead body; a plurality of electrodes disposed at the distal end of the lead body; and a plurality of lead wires. Each electrode includes a unitary ring and a seat in the unitary ring. The unitary ring has an exterior surface and an interior surface and defines a hollow center region. The seat is formed as a depression of a portion of the unitary ring. Each of the lead wires extends along the lead body and is attached to a corresponding electrode at the seat of the corresponding electrode.