Patent ID: 7911054

Claim:
A semiconductor device comprising: a seal member formed of an insulating resin; a tab whose back side is exposed to a mounting surface of the seal member, the tab having, on a surface thereof opposite to the back side, a semiconductor element fixing area and wire connection areas; tab suspension leads contiguous to the tab; a plurality of leads disposed around and apart from the tab, whose back sides are exposed to the mounting surface of the seal member; a semiconductor chip positioned within the seal member and fixed through an adhesive onto the semiconductor chip fixing area in such a manner that a back side of the semiconductor chip is opposed to the semiconductor chip fixing area, the semiconductor chip has electrodes formed on a main surface of the semiconductor chip; electrically conductive wires for electrically connecting the plural electrodes of the semiconductor chip and surfaces of the leads and electrically connecting the electrodes on the semiconductor chip and the wire connection areas on the tab, wherein the tab is formed larger than the semiconductor chip so that outer peripheral edges of the tab are positioned outside outer peripheral edges of the semiconductor chip; and wherein a groove is formed in the surface of the tab so as to be positioned between the semiconductor chip fixing area and the wire connection areas.