Patent ID: 6642619
Filing Date: 2003-11-04
Classification: H01L

Abstract:
A Fluorine doped Silicon Oxide (SiO2)/Tantalum interface, comprising:a surface region of a Fluorine doped Silicon Oxide structure having a depleted amount of Fluorine as a result of treating the Fluorine doped Silicon Oxide structure with an amount of Ammonia (NH3); an amount of Silicon Nitride (SiN) in the surface region of the Fluorine doped Silicon Oxide structure, the Silicon Nitride (SiN) being formed by treating the surface region with an amount of Nitrogen (N2); an amount of Tantalum Nitride (TaN) in tie surface region, wherein the amount of Tantalum Nitride (TaN) is formed due to a reaction between an amount of Tantalum (Ta) and an amount of Nitrogen (N2) in the surface region, the amount of Tantalum being deposited over the surface region, wherein a greater concentration of the amount of Silicon Nitride (SiN) is adjacent an upper portion of a non-fluorine depleted region of the Fluorine doped Silicon Oxide structure as compared to a concentration of the amount of Silicon Nitride (SiN) in an upper region of the surface region.