Formation of cobalt silicide films by ion beam deposition

Y. Zhang, D. E. McCready, C. M. Wang, J. Young, M. I. McKinley, H. J. Whitlow, A. Razpet, G. Possnert, T. Zhang, Y. Wu

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Thin films of cobalt silicide are widely used as metallization in very large-scale integrated electronic circuits. In this study, Co ions were deposited on Si(1 1 1) wafers by a high beam current filter metal vacuum arc deposition (FMEVAD) system. Surface silicide films were formed after annealing from 500 to 700 °C for 30 min. The results show that a thin CoSi2 surface layer with both a smooth surface topography and sharp interface can be achieved by annealing at 700 °C. The CoSi phase and O contamination were observed in the samples that were annealed at lower temperatures.

Original languageEnglish
Pages (from-to)602-604
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume242
Issue number1-2
DOIs
StatePublished - Jan 2006
Externally publishedYes

Keywords

  • Electron microscopy
  • Ion beam analysis
  • Silicide
  • Synthesis

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