Patent ID: 6524919
Filing Date: 2003-02-25
Classification: H01L

Abstract:
A method for manufacturing a metal oxide semiconductor device, comprising the steps of:providing a substrate, wherein a gate is formed thereon and a spacer is formed on the sidewalls of the gate; forming a source/drain region in the substrate beside the gate; forming a plurality of self-aligned silicide layers on the exposed surface of the gate and the source/drain region; removing a portion of the spacer by an etching process to form a sharp-corner spacer; performing a tilted pocket implantation into the substrate to form pocket regions within the substrate beside the gate, and locating the pocket regions near the surface of the substrate by adjusting an energy and an angle of the tilted pocket implantation; and performing a tilted-angle implantation into the substrate to form a source/drain extension within the substrate beside the gate and underlying the sharp-corner spacer.