Patent ID: 6853089

Claim:
A semiconductor device comprising: a wiring substrate including a main surface, an insulating film formed on the main surface, and a plurality of electrodes formed on the main surface; a semiconductor chip having a main surface and a back surface, further having a plurality of semiconductor elements and a plurality of electrodes both formed on the main surface, the semiconductor chip being fixed to the wiring substrate through an adhesive in a state in which the back surface thereof confronts the main surface of the wiring substrate; conductive wires for connecting the electrodes on the main surface of the wiring substrate with the electrodes on the semiconductor chip; and a seal member which covers the semiconductor chip, the main surface of the wiring substrate and the electrodes, wherein the electrodes on the wiring substrate are arranged around the semiconductor chip, wherein the insulating film has a first portion formed between the semiconductor chip and the main surface of the wiring substrate, a second portion formed between of outer periphery of the semiconductor chip and the electrodes on the wiring substrate, and a groove formed between the first portion and the second portion, wherein the seal member and the wiring substrate have side faces cut by dicing, and wherein the adhesive covers a part of end faces of the semiconductor chip and is not provided on the main surface of the semiconductor chip and wherein the adhesive is provided in the interior of the groove and is not provided in the portion where the electrodes on the wiring substrate and the conductive wires are connected together.