Patent ID: 8502311

Claim:
A semiconductor transistor, comprising: a semiconductor substrate having a channel region and a drain extension region connected to the channel region, and a main surface; a gate electrode configured to provide an electric field for influencing the channel region; a first electrically conductive shield element extending in a horizontal direction parallel to the main surface of the semiconductor substrate and being arranged beside the gate electrode spaced apart from the drain extension region in a vertical direction perpendicular to the horizontal direction; and a second electrically conductive shield element arranged spaced apart from the first shield element in the vertical direction; wherein at least a portion of the gate electrode protrudes over the first shield element in the vertical direction; wherein the second shield element includes a lower horizontal portion of the second shield element extending in the horizontal direction, a vertical portion of the second shield element extending in the vertical direction, an end of the vertical portion being connected to the lower horizontal portion of the second shield element, and an upper horizontal portion of the second shield element extending in the horizontal direction and being connected to another end of the vertical portion of the second shield element; wherein a portion of the upper horizontal portion of the second shield element protrudes in the horizontal direction over an side edge of the gate electrode closest to the first shield element; wherein the portion of the upper horizontal portion of the second shield element protrudes in the horizontal direction over the side edge of the gate electrode closest to the first shield element by an amount between 0.1 and 0.8 times an extent of an upper surface of the gate electrode in the horizontal direction.