Copper Plating on Resistive Substrates, Diffusion Barrier and Alternative Seed Layers

Autor: Magi Margalit Nagar, Silvia Armini, Philippe M. Vereecken, Wouter Ruythooren, Katrien Strubbe, Aleksandar Radisic, Zaid El-Mekki, Henny Volders
Rok vydání: 2010
Předmět:
Zdroj: ECS Transactions. 25:175-184
ISSN: 1938-6737
1938-5862
DOI: 10.1149/1.3318516
Popis: We have studied electrochemical deposition of copper on ruthenium-tantalum (Ru-Ta) alloy, tantalum (Ta), and cobalt (Co) substrates using cyclic voltammetry and galvanostatic methods. We show that a single-step direct-plating from acidic Cu bath approach is favorable on thin Ru-Ta films, while it presents a significant challenge for plating on resistive Ta and Co substrates.
Databáze: OpenAIRE