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.