The role of the relative voltage and phase for frequency coupling in a dual-frequency capacitively coupled plasma

D. O'Connell, T. Gans, E. Semmler, P. Awakowicz

Research output: Contribution to journalArticlepeer-review

Abstract

Frequency coupling in multifrequency discharges is a complex nonlinear interaction of the different frequency components. An alpha-mode low pressure rf capacitively coupled plasma operated simultaneously with two frequencies is investigated and the coupling of the two frequencies is observed to greatly influence the excitation and ionization within the discharge. Through this, plasma production and sustainment are dictated by the corresponding electron dynamics and can be manipulated through the dual-frequency sheath. These mechanisms are influenced by the relative voltage and also the relative phase of the two frequencies. (C) 2008 American Institute of Physics.

Original languageEnglish
Article number081502
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume93
Issue number8
DOIs
Publication statusPublished - 25 Aug 2008

Keywords

  • ELECTRIC-FIELDS
  • FUNCTIONAL SEPARATION
  • DISCHARGE
  • SHEATH
  • ENERGY

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