SEMICONDUCTOR PACKAGE

A semiconductor package having a lower redistribution structure includes a redistribution insulation layer, a plurality of ball pads in the redistribution insulation layer apart from one another, a double via which includes a first active via and a dummy via located on at least one of the plurality of ball pads and apart from each other in the redistribution insulation layer, and a first active redistribution layer electrically connected to the first active via in the redistribution insulation layer, solder balls electrically connected to the plurality of ball pads under the lower redistribution structure, a first semiconductor chip on the lower redistribution structure and electrically connected to the first active via and the first active redistribution layer of the lower redistribution structure, and a molding layer molding the first semiconductor chip on the lower redistribution structure.