Patent ID: 8604474

Claim:
A semiconductor device comprising: a semiconductor body including a first region and a second region surrounding the first region, the first region being electrically active; gate fingers disposed in the first region and a gate bus bar disposed in the second region, the gate bus bar electrically collecting the gate fingers, two adjacent gate fingers being disposed in a center of the semiconductor body and spaced from each other by a space wider than a space between other adjacent gate fingers; source fingers disposed in the first region and a source bus bar disposed in the second region, the source bus bar electrically collecting the source fingers; drain fingers disposed in the first region and a drain bus bar disposed in one portion of the second region putting the gate bus bar and the source bus bar therebetween, the drain bus bar electrically collecting the drain fingers; and a monitoring region disposed in the source bus bar between the two adjacent gate fingers in the center of the semiconductor body, and surrounded by the source bus bar.