A package substrate may include an insulating substrate, a first land array, a second land array, a first plating line and a second plating line. The first land array may be arranged on a first surface of the insulating substrate. The second land array may be arranged on a second surface of the insulating substrate opposite to the first surface. The second land array may be electrically connected to the first land array. The second land array may include outer lands and inner lands. The first plating line may be connected to the outer lands. The second plating line may be connected between the outer lands and the inner lands. The second plating line may have a width narrower than that of the first plating line. The second plating line may be removed by applying a removing current to the first plating line prior to the first plating line.