Patent ID: 7936048

Claim:
A power transistor, comprising: a semiconductor body having a front side and an opposite rear side, a first highly doped semiconductor zone of a first connection of a load path of the power transistor at the front side of the semiconductor body, a second highly doped semiconductor zone of a second connection of the load path at the rear side of the semiconductor body, a control input at the front side and configured such that a voltage applied to the control input would cause a current flow between the second semiconductor zone and the first semiconductor zone, and a first feedthrough from the front side to the rear side through the semiconductor body and conductively connecting the control input to the rear side, the feedthrough having metallic electrodes on the front and rear sides of the semiconductor body, wherein the semiconductor body is disposed with its front side facing toward a chip carrier, the chip carrier is electrically connected to the first semiconductor zone via a metal layer on the front side of the semiconductor body, a mold composition is disposed between the chip carrier and the first feedthrough, and a distance between the chip carrier and the first feedthrough is at least as great as a quotient of U and an insulation strength of the mold composition, where U is equal to a maximum voltage to be provided between the first semiconductor zone and the control input.