A semiconductor package, and a fabrication method and a carrier thereof are provided. The fabrication method includes: preparing a core layer having a first surface and an opposed second surface, wherein the first and second surfaces are electrically connected to each other by a plurality of conductive vias; forming a plurality of bond pads on the second surface, wherein the bond pads are electrically connected to the conductive vias, and each of the conductive vias is partly located within a boundary of a corresponding one of the bond pads and is partly located out of the boundary of the corresponding bond pad, such that the carrier is fabricated; mounting and electrically connecting a chip to the first surface; forming an encapsulant on the first surface to encapsulate the chip; and forming solder joints on the bond pads of the second surface. By this arrangement, a popcorn effect is avoided.