Patent ID: 6455388
Filing Date: 2002-09-24
Classification: H01L

Abstract:
A method of manufacturing a metal-oxide-semiconductor (MOS) transistor, comprising:providing a substrate having a gate electrode and spacers on sidewalls of the gate electrode; forming a source/drain region in the substrate outside side edges of the spacers; forming a plurality of self-aligned silicide layers over an exposed surface of the gate electrode and the source/drain region; etching to remove a portion of the spacers, thereby forming sharp-angled spacers on the sidewalls of the gate electrode; conducting a pocket implantation of the substrate to form pocket regions inside the substrate, wherein the pocket regions are formed close to an upper substrate surface by controlling an energy level and an angle of pocket implantation; removing the sharp-angled spacers; and forming a source/drain extension region in the substrate on each side of the gate electrode.