Patent ID: 9023725
Filing Date: 2015-05-05
Classification: H01L

Abstract:
1. A method for forming a device comprising: providing a substrate; forming a gate having an unsilicided gate electrode and sidewall spacers adjacent to and in direct contact with sidewalls of the gate, wherein a height H depositing a single and continuous metal or metal alloy layer on and contacts the spacers, substrate and the top surface of the unsilicided gate electrode, wherein the single and continuous metal or metal alloy layer fills the recess; and processing the single and continuous metal or metal alloy layer to form metal silicide contacts simultaneously in the recess as well as partially within top portions of the gate electrode and diffusion regions adjacent to the gate, wherein a top surface of the metal silicide contact over the gate is about coplanar with a top of the sidewall spacer, and the difference between the height of the gate and spacers prevents formation of metal silicide filaments on top of the sidewall spacers.