Patent ID: 7518250
Filing Date: 2009-04-14
Classification: H01L

Abstract:
1. A semiconductor device comprising: (a) a wiring board having a base material layer, a plurality of wirings formed on an upper surface of the base material layer, a plurality of connecting terminals arranged along sides of the base material layer, an insulating film covering the plurality of wirings such that the plurality of connecting terminals are exposed from the insulating film, and a concaved portion formed in the insulating film, wherein a planar shape of the base material layer is a rectangular shape, wherein the plurality of connecting terminals are integrated with the plurality of wirings, respectively, wherein the concaved portion is arranged closer to a center of the semiconductor device than the plurality of connecting terminals in a plane view, and wherein the insulating film between the concaved portion and the connecting terminals protrudes from the upper surface of the wiring board; (b) an adhesive supplied on the insulating film, wherein the adhesive is supplied closer to the center of the semiconductor device than the concaved portion in a plane view, and wherein the adhesive includes a paste material; (c) a semiconductor chip mounted over the upper surface of the wiring board via the adhesive such that a peripheral portion of the semiconductor chip overlaps with the concaved portion in a plane view, (d) a plurality of bonding wires electrically connected the plurality of bonding pads of the semiconductor chip with the plurality of connecting terminals of the wiring board; and (e) an encapsulating resin for sealing the semiconductor chip, the plurality of bonding wires, and the upper surface of the wiring board,