Patent ID: 6376342
Filing Date: 2002-04-23
Classification: H01L

Abstract:
A method of fabricating a metal oxide semiconductor field effect transistor (MOSFET), device on a semiconductor substrate, comprising the steps of:forming a gate insulator layer on said semiconductor substrate; forming a gate structure, capped with a dielectric layer, on said gate insulator layer; forming a lightly doped source/drain region in an area of said semiconductor substrate not covered by the said capped gate structure; forming insulator spacers on the sides of said capped gate structure; forming a heavily doped source/drain region in an area of said semiconductor substrate not covered by said capped gate structure or by said insulator spacers; implanting metal ions into a top portion of said heavily doped source/drain region; performing an anneal procedure to form a metal silicide layer on the top surface of said heavily doped source/drain region, with said metal silicide layer formed from a first portion of said metal ions, while a second portion of said metal ions remain unreacted; and selectively removing said unreacted metal ions.