Patent ID: 7084511

Claim:
A semiconductor device comprising: a circuit board; a semiconductor chip mounted on said circuit board, said semiconductor chip including first, second and third electrodes; first, second and third wiring patterns each including a pad which is electrically connected to a corresponding one of said first, second and third electrodes of said semiconductor chip and a conductive line elongated from the pad in a direction opposite to said semiconductor chip; and a sealing resin formed to encapsulate said semiconductor chip together with the pad, a part of the conductive line of each of said first, second and third wiring patterns, and a part of said circuit board, said sealing resin having a molding line to define an outer edge thereof, the conductive line of said first, second and third wiring patterns thereby crossing said molding line of said sealing resin, wherein the conductive line of said first wiring pattern is larger in width than the conductive line of each of said second and third wiring patterns at least at a crossing portion with said molding line so that a gap along said molding line of said sealing resin between said first and second wiring patterns is approximately equal to a gap along said molding line of said sealing resin between said second and third wiring patterns.