An ultrasonic transducer according to the present invention comprises a plurality of piezoelectric elements, electrodes formed on the surface of the piezoelectric element, conductive wires having a tip in contact with the electrodes, conductive wires formed by electroplating, at least And a metal film covering the electrode with the same thickness as the thickness of the tip covered with the wire with a uniform thickness along the shape of the wire.本発明の超音波振動子は複数の圧電素子と、前記圧電素子の表面に形成された電極と、前記電極に先端が接触した導電性のワイヤと、電気めっき法により形成され、前記ワイヤの少なくとも先端を前記ワイヤの形状に沿った均一な厚みで被覆し、さらに前記ワイヤを被覆した厚みと同じ厚みで前記電極を被覆する金属膜と、を含む。
