In one embodiment, a method, of fabricating a stimulation lead for stimulating tissue of a patient, comprises: providing a lead body, the lead body comprising a plurality of conductors embedded within insulating material； providing a plurality of terminals； electrically coupling the plurality of terminals with the plurality of conductors； providing a plurality of electrodes, the plurality of electrodes comprising a plurality of substantially continuous longitudinal trenches on a surface of the electrodes, the electrodes comprising areas of reflow material forming microstructures substantially continuously along walls of the longitudinal trenches； and electrically coupling the plurality of electrodes with the plurality of conductors.
