Patent ID: 8692391

Claim:
An embedded ball grid array substrate, comprising: a core layer made of an insulating material and having a cavity therein; a semiconductor device embedded in the cavity of the core layer; a first circuit layer formed on one surface of the core layer and having a first circuit pattern including a wire bonding pad formed thereon; a second circuit layer formed on another surface of the core layer and having a second circuit pattern including a solder ball pattern formed thereon; a wire electrically connecting the semiconductor device to the wire bonding pad; and, a supporting layer made of an insulating material and fixing the semiconductor device by being formed at a gap between the semiconductor device and the core layer to surround the semiconductor device, wherein the core layer includes: a first insulating layer having the one surface contacting the first circuit layer and including the cavity therein to embed the semiconductor device in the formed cavity; and a second insulating layer made of the insulating material and having one surface contacting the first insulating layer and another surface contacting the second circuit layer; the supporting layer is integrated with the core layer and is made of the same material with the insulating material of the core layer; the second insulating layer is directly contacting the first insulating layer; and the one surface of the semiconductor device has the same height with the one surface of the first insulating layer.