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Reactively sputtered amorphous MoN film as a diffusion barrier for copper metallization

A. KUMAR1,* , A. SINGH1, R. KUMAR1, M. KUMAR1, D. KUMAR1

Affiliation

  1. Electronic Science Department, Kurukshetra University, Kurukshetra, India-136119

Abstract

The barrier capability of amorphous MoN thin film was investigated against Cu diffusion. The MoN layers were reactively sputtered of 50 nm by using a different nitrogen flow rates. The phase identification was evaluated by X-ray diffractometer (XRD), four probe method and scanning electron microscope (SEM). Results indicate that the amorphous 50 nm MoN layer act as a good diffusion barrier upto 600 ˚C for cooper metallization..

Keywords

Reactive d. c. sputtering, Diffusion barrier, Copper metallization.

Citation

A. KUMAR, A. SINGH, R. KUMAR, M. KUMAR, D. KUMAR, Reactively sputtered amorphous MoN film as a diffusion barrier for copper metallization, Optoelectronics and Advanced Materials - Rapid Communications, 5, 1, January 2011, pp.54-57 (2011).

Submitted at: Dec. 18, 2010

Accepted at: Jan. 26, 2011