Provided is a semiconductor package including a circuit board, a semiconductor chip on the circuit board, a heat dissipation member adjacent to the semiconductor chip, and a heat transmission member between the semiconductor chip and the heat dissipation member, the heat transmission member including a resin insulating body and phase change metal particles connected to each other in the resin insulating body, wherein the phase change metal particles connect the semiconductor chip and the heat dissipation member, the phase change metal particles being configured to transmit heat generated by the semiconductor chip to the heat dissipation member.