Patent ID: 8975696
Filing Date: 2015-03-10
Classification: H01L

Abstract:
1. Lateral MOS power transistor, comprising a semiconductor layer which has a front side and an opposite back side, a source electrode on the front side of the semiconductor layer, a drain electrode on the back side of the semiconductor layer, a first dopant region of a first conduction type on the front side in the semiconductor layer, which is electrically connected to the source electrode, a second dopant region of a second conduction type in the semiconductor layer, which is electrically connected to the drain electrode, a pn junction being formed between the first and second dopant a dielectric layer on the back side of the semiconductor layer between the semiconductor layer and the drain electrode, the dielectric layer having an opening through which an electrical connection between the drain electrode and the second dopant region is passed, and a terminal zone defined in the semiconductor layer, the terminal zone positioned directly above the opening, the opening thereby providing a straight line path between the terminal zone and the drain electrode.