Patent ID: 8173503
Filing Date: 2012-05-08
Classification: H01L

Abstract:
1. A method of forming an integrated circuit device, the method comprising: providing a semiconductor substrate comprising an NMOS region and a PMOS region; forming a first gate structure over the NMOS region of the semiconductor substrate; forming a second gate structure over the PMOS region of the semiconductor substrate; performing a first pre-amorphized implantation (PAI) by implanting a first element into the NMOS region of the semiconductor substrate, wherein the first element comprises antimony; performing a second PAI by implanting a second element different from the first element into the PMOS region of the semiconductor substrate; performing a first implantation of a pocket/halo region into the NMOS region of the semiconductor substrate; and performing a second implantation of a pocket/halo region into the PMOS region of the semiconductor substrate, wherein the second element comprises indium.