Patent ID: 6015747
Filing Date: 2000-01-18
Classification: H01L

Abstract:
A method for manufacturing a field effect transistor, the method comprising the steps of:forming source and drain regions in a semiconductor substrate;depositing polysilicon on a surface of the semiconductor substrate between the source and drain regions;forming first and second oxide spacers adjacent the polysilicon on the surface of the semiconductor substrate;forming a masking layer covering substantially all the semiconductor substrate;selectively removing portions of the masking layer to expose at least selected portions of the polysilicon;removing a part of the selected portions of the polysilicon to an etch depth to define a trench between the first and second oxide spacers, the trench exposing a deposition surface of the polysilicon for forming the metallpolysilicon layer; andselectively depositing electroless metal to form a metal/polysilicon gate in the trench at the selected portions of the polysilicon.