Characteristics of Fluorocarbon Radicals and CHF3 Molecule in CHF3 Electron Cyclotron Resonance Downstream Plasma

  • Takahashi Kunimasa
    Department of Quantum Engineering, School of Engineering, Nagoya University, Furo–cho, Chikusa–ku, Nagoya 464–01
  • Hori Masaru
    Department of Quantum Engineering, School of Engineering, Nagoya University, Furo–cho, Chikusa–ku, Nagoya 464–01
  • Goto Toshio
    Department of Quantum Engineering, School of Engineering, Nagoya University, Furo–cho, Chikusa–ku, Nagoya 464–01

Bibliographic Information

Other Title
  • Characteristics of Fluorocarbon Radicals and CHF<sub>3</sub>Molecule in CHF<sub>3</sub>Electron Cyclotron Resonance Downstream Plasma
Published
1994
DOI
  • 10.1143/jjap.33.4745
Publisher
The Japan Society of Applied Physics

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Description

The CF, CF2 and CF3 radical densities and CHF3 molecule density were measured in a CHF3 electron cyclotron resonance (ECR) downstream plasma using infrared diode laser absorption spectroscopy (IRLAS). The intensities of emission lines F*, Ar* and Hα were also measured in a CHF3/3 % Ar ECR downstream plasma using optical emission spectroscopy (OES). These measurements were carried out as a function of the microwave power and the pressure with modulation of the power with an on-period of 15 ms and an off-period of 85 ms. On the basis of the results of IRLAS and OES measurements, the behaviors of the radicals in the ECR plasma have been investigated in detail.

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