Patent ID: 7936061

Claim:
A semiconductor device, comprising: a first insulating layer having an opening therethrough; a first wiring pattern disposed on the first insulating layer; an external connection terminal provided on a portion of the first wiring pattern which is exposed from the opening; a second insulating layer which covers the first wiring pattern and which comprises a plurality of via holes therethrough; a second wiring pattern disposed within the second insulating layer and electrically connected to the first wiring pattern via a conductive material filled in at least one of the via holes; a semiconductor element having an electrode thereon and being mounted on the second insulating layer so as to be electrically connected to the first wiring pattern through the electrode, wherein the electrode is disposed in at least one of the via holes; an underfill resin which is filled between the semiconductor element and the second insulating; and a sealing resin portion which seals the semiconductor element.