Patent ID: 7705405
Filing Date: 2010-04-27
Classification: H01L

Abstract:
1. A semiconductor structure comprising a fully silicided metal gate of a first silicide metal having a first thickness and abutting silicided source and drain regions of a second silicide metal having a second thickness, wherein said second thickness is less than the first thickness and said silicided source and drain regions are aligned to edges of a gate region including at least the fully silicided metal gate and said fully silicided metal gate has sidewalls that are in direct contact with a nitride spacer, wherein the silicided source and drain regions are comprised of a different silicide metal than the fully silicided metal gate, wherein a metal element of the fully silicided metal gate is not present in the silicide source and drain regions, wherein the fully silicide metal comprises NiSi, NiPtSi or a combination thereof, and said silicided source and drain regions comprise CoSi 2 .