Patent ID: 6589847
Filing Date: 2003-07-08
Classification: H01L

Abstract:
A method of forming source/drain regions in a semiconductor device, comprising:forming a gate electrode above a semiconducting substrate, said substrate being doped with a first type of dopant material; forming halo implant regions in said substrate adjacent said gate electrode by performing at least the following steps: performing a first angled implant process at an angle greater than zero but less than approximately 60 degrees using a dopant material that is of a type opposite to said first type of dopant material to form a first halo implant region comprised of said opposite type of dopant material in said substrate; performing a second angled implant process at an angle greater than zero but less than approximately 60 degrees using a dopant material that is of the same type as said first type of dopant material to form a second halo implant region comprised of said same type of dopant material in said substrate within said first halo implant region; and performing at least one additional implantation process to further form source/drain regions for the device.