Patent ID: 8643161

Claim:
A semiconductor device comprising: a package substrate having a front surface and a backside surface; an electrode pad formed on the front surface; an outer connection pad formed on the backside surface and electrically connected to the electrode pad; a first through electrode formed in the package substrate for electrically connecting the electrode pad to the outer connection pad; a semiconductor chip mounted on the front surface and having an electrode electrically connected to the electrode pad; a sealing resin layer having a through hole formed with a die-molding and reaching the electrode pad for sealing the semiconductor chip; and a second through electrode filled in the through hole with a conductive material and having one end portion disposed on the electrode pad and the other end portion exposed from the sealing resin layer, wherein said first through electrode is situated just beneath the second through electrode or shifted inwardly from the second through electrode relative to a side edge of the package substrate, said sealing resin layer has a plurality of through holes arranged in a pattern along an outer contour of the semiconductor chip so that a plurality of second through electrodes is filled in the plurality of through holes, and said semiconductor chip is formed in a rectangular shape so that the plurality of second through electrodes is situated surrounding each side of the rectangular shape and at each corner of the rectangular shape.