Patent ID: 6333564
Filing Date: 2001-12-25
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor chip;a plurality of protrusion electrodes which function as external connecting terminals, the semiconductor device being mounted to a printed circuit board via the protrusion electrodes;an interposer which electrically connects the semiconductor chip to the protrusion electrodes;a mold resin which seals at least a part of the semiconductor chip and a part of the interposer; anda connecting portion sealing resin which seals a connecting portion between the interposer and the semiconductor chip,wherein a thermal expansion coefficient of the mold resin is matched to a thermal expansion coefficient of the printed circuit board,wherein the mold resin is provided with a side surface holding portion which holds side surfaces of the semiconductor chip so as to restrict thermal deformation of the semiconductor chip,wherein the interposer is bonded to the semiconductor chip via a bonding member,wherein an interposing portion is formed in the bonding member, andwherein the mold resin is disposed in the interposing portion, so that the mold resin is interposed between the side surface holding portion and the connecting portion sealing resin.