Patent ID: 7821064

Claim:
A lateral MISFET having a semiconductor body comprising: a doped semiconductor substrate of a first conduction type; an epitaxial layer of a second conduction type, which is complementary to the first conduction type, said epitaxial layer being provided on the semiconductor substrate; a drain electrode; a source electrode; a gate electrode arranged adjacent a gate insulator; a semiconductor zone of the first conduction type, said semiconductor zone adjoining the gate insulator and being embedded into the epitaxial layer; a drift zone of the second conduction type being arranged between the source electrode and the drain electrode in the epitaxial layer; and pillar-type regions which are arranged in the drift zone in a plurality of rows and a plurality of columns and physically separated from the substrate by the epitaxial layer, the pillar-type regions having a first metal material layer arranged adjacent a portion of the drift zone to form a respective Schottky contact with a material of the drift zone and a different second metal material layer surrounded by the first metal material layer and which produces an ohmic contact with the first metal material layer.