Patent ID: 6110768
Filing Date: 2000-08-29
Classification: H01L

Abstract:
A method of manufacturing a thin film transistor, comprising the steps of:providing a substrate;forming a protective layer on a top surface and a sidewall of the aluminum gate electrode;wherein the step of forming the protective layer further comprises the step of dipping the substrate and the aluminum gate electrode in a noble metal contained solution to form the protective layer;forming a gate dielectric layer on the substrate and the protective layer;forming an intrinsic amorphous-silicon thin film on the gate dielectric layer;forming an heavily doped amorphous-silicon thin film on the intrinsic amorphous-silicon thin film;forming a patterned source/drain conductive layer on the heavily doped amorphous-silicon thin film to expose a portion of the heavily doped amorphous-silicon thin film above the aluminum gate electrode; andremoving the portion of the heavily doped amorphous-silicon thin film exposed by the patterned source/drain conductive layer to expose a portion of the intrinsic amorphous-silicon thin film.