An ultrasonic probe includes a connection layer including a conductor array for connecting a transducer array and a printed circuit board (PCB) to an application specific integrated circuit (ASIC). The ultrasonic probe includes a transducer array which transmits and receives an ultrasonic wave, a first electronic circuit electrically connected to the transducer array, a second electronic circuit electrically connected to the first electronic circuit, and a connection layer disposed between the transducer array and the first electronic circuit and including a first conductor array in contact with the transducer array so that the transducer array is electrically connected to the first electronic circuit and a second conductor array in contact with the second electronic circuit so that the second electronic circuit is electrically connected to the first electronic circuit.
