Patent ID: 6841863

Claim:
A ball grid array package with stacked center pad chips, comprising: two center pad type semiconductor chips, each of which having chip pads formed along a central portion of an active surface of each of the semiconductor chips; upper and lower circuit boards joined together with no gap of a substantial height formed therebetween, the semiconductor chips being attached to each of the upper and lower circuit boards while active surfaces of the semiconductor chips face each other, the chip pads being connected to each of the upper and lower circuit boards through gold wires, wherein the thickness of the portion of each of the upper and lower boards that is connected with the gold wires is less than the thickness of the other portions of each of the boards; bumps interposed between the upper and lower circuit boards to electrically connect the upper and lower circuit boards with each other; and a package mold in which the upper circuit board is inserted, opposite end portions of the lower circuit board being exposed to a lower side of the package mold.