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Investigating the effects of electron bounce-cyclotron resonance on plasma dynamics in capacitive discharges operated in the presence of a weak transverse magnetic field

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/5.0094409· OSTI ID:1889112
Recently, Patil et al. [Phys. Rev. Res. 4, 013059 (2022)] have reported the existence of an enhanced operating regime when a low-pressure (5 mTorr) capacitively coupled discharge (CCP) is driven by a very high radio frequency (60 MHz) source in the presence of a weak external magnetic field applied parallel to its electrodes. Their particle-in-cell simulations show that a significantly higher bulk plasma density and ion flux can be achieved at the electrode when the electron cyclotron frequency equals half of the applied radio frequency for a given fixed voltage. In the present work, we take a detailed look at this phenomenon and further delineate the effect of this “electron bounce-cyclotron resonance (EBCR)” on the electron and ion dynamics of the system. We find that the ionization collision rate and stochastic heating are maximum under resonance condition. The electron energy distribution function also indicates that the population of tail-end electrons is highest for the case where EBCR is maximum. Formation of electric field transients in the bulk plasma region is also seen at lower values of applied magnetic field. Finally, we demonstrate that the EBCR-induced effect is a low-pressure phenomenon and weakens as the neutral gas pressure increases. The potential utility of this effect to advance the operational performance of CCP devices for industrial purposes is discussed in this report.
Research Organization:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1889112
Alternate ID(s):
OSTI ID: 1870936
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 29; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (92)

Principles of Plasma Discharges and Materials Processing book January 2005
Effect of Mass and Charge of Ionic Species on Spatio-Temporal Evolution of Transient Electric Field in CCP Discharges: Effect of Mass and Charge of Ionic Species on Spatio-Temporal Evolution of Transient Electric Field in CCP Discharges journal January 2015
Magnetical asymmetric effect in geometrically and electrically symmetric capacitively coupled plasma journal June 2017
Magnetically enhanced reactive ion etching (MERIE) with different field configurations journal September 1989
Role of transverse magnetic field in the capacitive discharge journal August 2011
On the efficiency of the electron sheath heating in capacitively coupled radio frequency discharges in the weakly collisional regime journal July 1995
Modeling of magnetically enhanced capacitively coupled plasma sources: Ar discharges journal August 2003
Ion flux nonuniformities in large-area high-frequency capacitive discharges journal July 2003
Electron heating mode transition observed in a very high frequency capacitive discharge journal August 2003
Analytic model for a dual frequency capacitive discharge journal November 2003
Modeling of magnetically enhanced capacitively coupled plasma sources: Ar/C4F8/O2 discharges journal February 2004
Landau damping and anomalous skin effect in low-pressure gas discharges: Self-consistent treatment of collisionless heating journal May 2004
Ion energy uniformity in high-frequency capacitive discharges journal January 2005
Enhanced collisionless heating in a nonuniform plasma at the bounce resonance condition journal August 2005
Effectiveness of electron-cyclotron and transmission resonance heating in inductively coupled plasmas journal October 2005
Stochastic heating in single and dual frequency capacitive discharges journal May 2006
Frequency coupling in dual frequency capacitively coupled radio-frequency plasmas journal December 2006
Direct measurement of spatial electron density oscillations in a dual frequency capacitive plasma journal August 2008
Diagnostics of ballistic electrons in a dc/rf hybrid capacitively coupled discharge journal December 2008
Power dissipated in low‐pressure radio‐frequency discharge plasmas journal January 1985
Argon metastable densities in radio frequency Ar, Ar/O2 and Ar/CF4 electrical discharges journal September 1997
Electron energy distribution functions measured by Langmuir probe with optical emission spectroscopy in very high frequency capacitive discharge in nitrogen journal November 2012
Instability, collapse, and oscillation of sheaths caused by secondary electron emission journal December 2012
Combined effects of gas pressure and exciting frequency on electron energy distribution functions in hydrogen capacitively coupled plasmas journal February 2013
Simulation study of wave phenomena from the sheath region in single frequency capacitively coupled plasma discharges; field reversals and ion reflection journal July 2013
Influence of emitted electrons transiting between surfaces on plasma-surface interaction journal September 2013
Study of the effects of a transverse magnetic field on radio frequency argon discharges by two-dimensional particle-in-cell-Monte-Carlo collision simulations journal October 2013
Observation of transient electric fields in particle-in-cell simulation of capacitively coupled discharges journal July 2014
Electron heating in low pressure capacitive discharges revisited journal December 2014
Effect of driving frequency on the electron energy distribution function and electron-sheath interaction in a low pressure capacitively coupled plasma journal November 2016
The effect of intermediate frequency on sheath dynamics in collisionless current driven triple frequency capacitive plasmas journal January 2017
Influence of excitation frequency on the metastable atoms and electron energy distribution function in a capacitively coupled argon discharge journal June 2018
Spatial symmetry breaking in single-frequency CCP discharge with transverse magnetic field journal August 2018
Plasma density and ion energy control via driving frequency and applied voltage in a collisionless capacitively coupled plasma discharge journal August 2018
Influence of select discharge parameters on electric field transients triggered in collisionless very high frequency capacitive discharges journal October 2019
Ion energy distribution function in very high frequency capacitive discharges excited by saw-tooth waveform journal October 2021
Analytical model of a dual frequency capacitive sheath journal July 2003
Analysis of the excited argon atoms in the GEC RF reference cell by means of one-dimensional PIC simulations journal July 2004
Independent control of ion current and ion impact energy onto electrodes in dual frequency plasma devices journal February 2004
Space and phase resolved plasma parameters in an industrial dual-frequency capacitively coupled radio-frequency discharge journal November 2007
On the possibility of making a geometrically symmetric RF-CCP discharge electrically asymmetric journal July 2008
Collisionless heating in radio-frequency discharges: a review journal September 2009
Critical evaluation of analytical models for stochastic heating in dual-frequency capacitive discharges journal June 2013
Effect of electromagnetic waves and higher harmonics in capacitively coupled plasma phenomena journal November 2013
Investigation of wave emission phenomena in dual frequency capacitive discharges using particle-in-cell simulation journal June 2014
Tailored voltage waveform capacitively coupled plasmas in electronegative gases: frequency dependence of asymmetry effects journal May 2016
Non-local collisionless and collisional electron transport in low-temperature plasma journal November 2009
Measurement of electron energy distribution in low-pressure RF discharges journal March 1992
Standing wave and skin effects in large-area, high-frequency capacitive discharges journal June 2002
Spatial and frequency dependence of plasma currents in a 300 mm capacitively coupled plasma reactor journal October 2006
RF discharge under the influence of a transverse magnetic field journal August 2008
Power dynamics in a low pressure capacitively coupled plasma discharge journal December 2009
Tailored ion energy distributions at an rf-biased plasma electrode journal November 2010
The electrical asymmetry effect in capacitively coupled radio-frequency discharges journal April 2011
Control of ion energy distributions using a pulsed plasma with synchronous bias on a boundary electrode journal August 2011
Simulation study of stochastic heating in single-frequency capacitively coupled discharges with critical evaluation of analytical models journal June 2013
Effects of reactor geometry and frequency coupling on dual-frequency capacitively coupled plasmas journal August 2013
Electron heating in capacitively coupled plasmas revisited journal May 2014
Ion flux asymmetry in radiofrequency capacitively-coupled plasmas excited by sawtooth-like waveforms journal August 2014
The effect of the driving frequency on the confinement of beam electrons and plasma density in low-pressure capacitive discharges journal March 2015
Collisionless sheath heating in current-driven capacitively coupled plasma discharges via higher order sinusoidal signals journal April 2015
Tailored-waveform excitation of capacitively coupled plasmas and the electrical asymmetry effect journal November 2015
Validation and benchmarking of two particle-in-cell codes for a glow discharge journal November 2016
Electric field filamentation and higher harmonic generation in very high frequency capacitive discharges journal July 2019
Driving frequency effect on discharge parameters and higher harmonic generation in capacitive discharges at constant power densities journal November 2020
Plasma asymmetry and electron and ion energy distribution function in capacitive discharges excited by tailored waveforms journal April 2022
Magnetical asymmetry effect in capacitively coupled plasmas: effects of the magnetic field gradient, pressure, and gap length journal March 2018
Disparity between current and voltage driven capacitively coupled radio frequency discharges journal December 2018
2D axial-azimuthal particle-in-cell benchmark for low-temperature partially magnetized plasmas journal October 2019
Electric field nonlinearity in very high frequency capacitive discharges at constant electron plasma frequency journal March 2020
High frequency sheath modulation and higher harmonic generation in a low pressure very high frequency capacitively coupled plasma excited by sawtooth waveform journal November 2020
Magnetic attenuation of the self-excitation of the plasma series resonance in low-pressure capacitively coupled discharges journal October 2021
Resonant sheath heating in weakly magnetized capacitively coupled plasmas due to electron-cyclotron motion journal October 2021
Kinetic Theory of Plasma Sheaths Surrounding Electron-Emitting Surfaces journal August 2013
Strong Ionization Asymmetry in a Geometrically Symmetric Radio Frequency Capacitively Coupled Plasma Induced by Sawtooth Voltage Waveforms journal March 2015
Abnormally low electron energy and heating-mode transition in a low-pressure argon rf discharge at 13.56 MHz journal August 1990
Electron acoustic waves in capacitively coupled, low-pressure rf glow discharges journal March 1991
Pressure Heating of Electrons in Capacitively Coupled rf Discharges journal August 1995
Heating Mode Transition Induced by a Magnetic Field in a Capacitive rf Discharge journal March 1996
Anomalous Capacitive Sheath with Deep Radio-Frequency Electric-Field Penetration journal December 2002
Different Modes of a Capacitively Coupled Radio-Frequency Discharge in Methane journal April 2004
Collisionless Heating in Capacitive Discharges Enhanced by Dual-Frequency Excitation journal May 2006
Electron bounce-cyclotron resonance in capacitive discharges at low magnetic fields journal January 2022
Model of magnetically enhanced, capacitive RF discharges journal April 1991
The space-time-averaging procedure and modeling of the RF discharge II. Model of collisional low-pressure RF discharge journal April 1992
Analytical solution for capacitive RF sheath journal January 1988
The effects of a small transverse magnetic field upon a capacitively coupled RF discharge journal January 1995
Reactor modeling of magnetically enhanced capacitive RF discharge journal June 1997
Independent control of ion density and ion bombardment energy in a dual RF excitation plasma journal January 1993
Revisiting the anomalous RF field penetration into a warm plasma journal June 2006
Tailored ion energy distributions on plasma electrodes journal September 2013
Plasma Physics via Computer Simulation book January 1991