Patent attributes
A packaged integrated circuit device includes a frame having a cavity therein and an inner semiconductor chip within the cavity. A lower re-distribution layer is provided, which extends adjacent lower surfaces of the frame and the inner semiconductor chip. The lower re-distribution layer has an opening therein which at least partially exposes the lower surface of the inner semiconductor chip. A lower semiconductor chip is provided, which extends adjacent the lower surface of the inner semiconductor chip, and within the opening in the lower re-distribution layer. This lower re-distribution layer includes: (i) an insulating layer covering the lower surface of the frame, (ii) a re-distribution pattern disposed on the insulating layer, and (iii) a barrier layer, which is disposed on the insulating layer and surrounds at least a portion of the lower semiconductor chip.