A package substrate, a semiconductor package having the same, and a method for fabricating the semiconductor package. The semiconductor package includes a semiconductor chip, a package substrate, and a molding layer. The package substrate provides a region mounted with the semiconductor chip. The molding layer is configured to mold the semiconductor chip. The package substrate includes a first opening portion that provides an open region connected electrically to the semiconductor chip and extends beyond sides of the semiconductor chip to be electrically connected to the semiconductor chip.