Reduced edge effect RF electrode

An applicator for RF energy delivered through a skin surface, comprising: a base (18, 18 "); a first electrode (22, 22 ', 22") connected to the base of the applicator (18, 18 ") and which I extends from the applicator base (18, 18") wherein said first electrode is adapted to, in use, extend from said base nozzle toward a first location (46) of the surface of the skin ( 14); and a first semiconductor cap (30, 30 ', 30 ", 30"') disposed at a first distal end (34) of the first electrode (22, 22 ', 22 ") being configured first semiconductor cap (30, 30 ', 30 ", 30"') for, in use, contacting the first location (46) of the skin surface (14), wherein the RF energy is supplied from the first electrode (22, 22 ', 22 ") through the first semiconductor cap (30, 30', 30", 30 " ') through the skin surface (14), and wherein the first semiconductor cap (30, 30 ', 30 ", 30"') has an electrical conductivity of about 0.03 S / m to about 3.0 S / m and a thermal conductivity of about 5 W / m. ° C at about 500 W / m. ° C.