Patent ID: 8193066
Filing Date: 2012-06-05
Classification: H01L

Abstract:
1. A method of forming a resistive structure and a gate electrode structure of a semiconductor device, the method comprising: forming a gate insulation layer above a transistor region; forming a layer of gate electrode material at least above said gate insulation layer; forming a layer of a silicon/germanium mixture on an isolation structure in a resistor region and above said layer of gate electrode material, said gate electrode material being a material other than said silicon/germanium mixture; removing portions of said silicon/germanium mixture from above said layer of gate electrode material; after removing said portions of said silicon/germanium mixture, patterning said layer of gate electrode material and said layer of silicon/germanium mixture so as to form, respectively, a gate electrode in said transistor region and a resistor body in said resistor region; introducing a dopant species into said resistor body so as to adjust a specific resistance of said resistor body; and forming a contact element in said resistor body by incorporating a metal species.