Disclosed is a diode package, wherein an upper lead wire and a lower lead wire are each formed in a long and flat plate and each have a first stage and a second stage, both stages being opposite from each other, the upper side of the diode chip is attached to the lower side of the first stage of the upper lead wire, the lower side of the diode chip is attached to the lower side of the first stage of the upper lead wire, and the second stage of the upper lead wire and the second stage of the lower lead wire are led out in the lateral direction of the molding compound. Furthermore, the first stage of the upper lead wire has a hemispherical contact groove which protrudes downward, and the hemispherical contact groove has a through hole in the center thereof.