Patent ID: 7384819

Claim:
A method of forming a plurality of stacked packages, comprising: providing a plurality of substrates, each substrate having a die pad and a plurality of bond pads on a first surface thereof and a plurality of conductive pads on a second surface thereof; attaching the first surfaces of the substrates to respective ones of a plurality of lead frames; attaching a plurality of integrated circuit (IC) dice to the respective die pads on the first surfaces of the substrates; electrically connecting the substrates, the respective lead frames and the respective IC dice; encapsulating the IC dice, the electrical connections, a portion of the substrates and a portion of the lead frames with a mold compound, wherein the conductive pads on the second surfaces of the substrates are exposed, thereby forming a plurality of packaged devices; attaching a plurality of semiconductor devices to respective ones of the second surfaces of the substrates, wherein the semiconductor devices are electrically connected to the respective IC dice by way of the conductive pads, thereby forming the stacked packages; and separating the stacked packages from other ones of the stacked packages.