Process of fabricating semiconductor device having gate structur

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438592, H01L 218234, H01L 213205, H01L 214763

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active

057704945

ABSTRACT:
Using a lamination of a tungsten silicide layer and a non-doped polysilicon layer as a mask, a dopant impurity is ion implanted into a semiconductor substrate so as to form impurity regions and dope the tungsten silicide layer with the dopant impurity, and the dopant impurity is diffused from the tungsten silicide layer into the non-doped polysilicon layer during the activation of the dopant impurity introduced into the substrate, thereby making the process simple.

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