Patent ID: 8809952
Filing Date: 2014-08-19
Classification: H01L

Abstract:
1. A transistor component comprising: a semiconductor body; an active transistor region arranged in the semiconductor body; an insulation region surrounding the active transistor region in the semiconductor body in a ring-shaped manner; a source zone, a drain zone, a body zone and a drift zone in the active transistor region, wherein the source zone and the drain zone are spaced apart in a lateral direction of the semiconductor body and the body zone is arranged between the source zone and the drift zone and the drift zone is arranged between the body zone and the drain zone; a gate and field electrode that is arranged over the active transistor region, that overlaps the insulation region at least in a region near the drain zone and that is insulated from the active transistor region by a dielectric layer, the dielectric layer having a first thickness in a region near the body zone and a second thickness in a region near the drift zone, the second thickness being greater than the first thickness, and wherein the gate and field electrode has a first contact opening above the drain zone; and a drain electrode making contact with the drain zone through the first contact opening.