Abstract: A fan-out wafer level package is disclosed, which includes: a redistribution layer; a semiconductor chip electrically connected with the redistribution layer through a bump; a protective member protecting the semiconductor chip, wherein a part of the protective member is removed such that the upper surface of the semiconductor chip is exposed in order to dissipate heat and prevent warpage; and an interconnector disposed outside the semiconductor chip at substantially the same level and having a lower part electrically connected with the redistribution layer and an upper part not being covered with the protective member, wherein the interconnector includes a metal core solder ball, the metal core solder ball includes a metal core and a solder buffer between the metal core and the protective member, and the metal core is formed of a combination of copper (Cu), nickel (Ni), and silver (Ag).

Abstract: fan-out wafer level package is disclosed, which comprises: a redistribution layer; a semiconductor chip electrically connected with the redistribution layer through a bump; a protective member protecting the semiconductor chip, wherein a part of the protective member is removed such that the upper surface of the semiconductor chip is exposed in order to dissipate heat and prevent warpage; and an interconnector disposed outside the semiconductor chip at substantially the same level and having a lower part electrically connected with the redistribution layer and an upper part not being covered with the protective member, wherein the interconnector includes a metal core solder ball, the metal core solder ball includes a metal core and a solder buffer between the metal core and the protective member, and the metal core is formed of a combination of copper (Cu), nickel (Ni), and silver (Ag).

Abstract: The present invention relates to a circuit board having an interposer embedded therein, including: an interposer, the top side and back side of which are electrically connected by a first through-electrode; and a molding member having the interposer embedded therein and the top side and back side of the interposer exposed. According to the present invention, the molding member of an insulator and the interposer of a semiconductor can be appropriately selected and coupled according to the required fine pitch of a through-hole, and the interposer is molded on substantially the same level as a semiconductor chip, and thus no additional process for embedding the interposer needs to be added.