Patent ID: 7560783
Filing Date: 2009-07-14
Classification: H01L

Abstract:
1. A field-effect controllable semiconductor component configured in a semiconductor body, the semiconductor component comprising: at least one source zone and at least one drain zone of a first conductivity type, said source zone having a doped crystalline semiconductor layer configured therein; at least one body zone of a second conductivity type configured between said source zone and said drain zone; at least one gate electrode for forming a current-carrying channel in said body zone when a gate potential is applied to said gate electrode; and at least one source electrode that forms a metallization for making non-reactive contact with; only said semiconductor layer configured in said source zone, where a metal-semiconductor contact is formed between said source electrode and said semiconductor layer, said metal-semiconductor contact comprising: a doping material forming a dopant in said semiconductor layer, said doping material having a solubility limit ensuring that said electrically active doping concentration in said semiconductor layer is always a fraction of said doping concentration introduced into said semiconductor layer, wherein said doping concentration is far above said solubility limit.