Patent ID: 6670701
Filing Date: 2003-12-30
Classification: H01L,H05K

Abstract:
A semiconductor module comprising:a mounting substrate including electrodes and, on an underside, solder balls for connecting to an interconnection of another electronic component; and a plurality of semiconductor packages mounted in multiple layers on a top side of said mounting substrate, each semiconductor package including a semiconductor chip, a resin encapsulation completely encapsulating said semiconductor chip and having top and bottom surfaces, respective side surfaces transverse to said top and bottom surfaces, and lead terminals extending outwardly only from the side surfaces, said lead terminals being connected to said electrodes, wherein said top and bottom surfaces of adjacent semiconductor packages are disposed opposite each other in said multiple layers and generally parallel to said underside and said top side of said mounting substrate, separation between said electrodes to which said lead terminals of respective semiconductor packages are connected is different for each of said semiconductor packages and increases with distance of the respective semiconductor package from said mounting substrate, and the distances between said mounting substrate and respective semiconductor packages are different for each of said semiconductor packages.