Patent ID: 6072700
Filing Date: 2000-06-06
Classification: H01L

Abstract:
A ball grid array package comprising:a substrate having a first surface and a second surface, which is positioned in a higher place than the first surface and which is formed around the first surface;a plurality of semiconductor chips, each of which has a plurality of pads thereon for transferring signals, said plurality of semiconductor chips having a first semiconductor chip, which is positioned on the first surface of the substrate, and a second semiconductor chip, which is located above the first semiconductor chip;a plurality of leads mounted on the substrate and having first ends, which are electrically connected to at least some of the pads of the first semiconductor chip, and second ends, which are exposed to the second surface of the substrate;a plurality of first conductive solder balls formed above a surface of the second semiconductor chip and electrically connected to at least some of the pads of the second semiconductor chip; anda plurality of second conductive solder balls formed on the second surface of the substrate and electrically connected to the second ends of the leads.