Structural Stability of Diffusion Barriers in Cu/Ru/MgO/Ta/Si

Various structures of Cu (50 nm)/Ru (2 nm)/MgO (0.5–3 nm)/Ta (2 nm)/Si were prepared by sputtering and electroplating techniques, in which the ultra-thin trilayer of Ru (2 nm)/MgO (0.5–3 nm)/Ta (2 nm) is used as the diffusion barrier against the interdiffusion between Cu film and Si substrate. The...

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Bibliographic Details
Main Authors: Shu-Huei Hsieh, Wen Jauh Chen, Chu-Mo Chien
Format: Article
Language:English
Published: MDPI AG 2015-11-01
Series:Nanomaterials
Subjects:
Online Access:http://www.mdpi.com/2079-4991/5/4/1840