Patent ID: 7785952
Filing Date: 2010-08-31
Classification: H01L

Abstract:
1. A method of fabricating a metal-oxide semiconductor device, the method comprising the steps of: providing a substrate; forming a shallow trench isolation region in the substrate that divides the substrate into an NFET region and a PFET region; forming at least one NFET gate stack over the NFET region of the substrate, the NFET gate stack comprising: forming at least one PFET gate stack over the PFET region of the substrate, the PFET gate stack comprising: forming an NFET gate stack silicide region that extends through the interface between the first NFET gate stack silicon layer and the second NFET gate stack silicon layer; and forming a PFET gate stack silicide region that extends through the interface between the first PFET gate stack silicon layer and the second PFET gate stack silicon layer.