Patent ID: 6566254
Filing Date: 2003-05-20
Classification: H01L

Abstract:
A method for manufacturing a semiconductor device, comprising the steps of:forming a gate electrode, sidewalls provided on both side surfaces of said gate electrode, and diffusion layers formed at a surface of a silicon substrate by a self-aligning technique within an element forming region defined by element isolation regions provided on said silicon substrate; and forming a silicide film at least on the surfaces of said diffusion layers, the step of forming a silicide film including the steps of: selectively forming a first metal film on substantially all of an exposed surface portion of said silicon substrate forming said diffusion layers, applying first annealing thereto to allow at least said diffusion layers to react with said first metal film, removing part of said sidewalls to form a gap with said first metal film, and performing second annealing at a temperature higher than that of said first annealing to complete formation of said silicide film.