Tailored-waveform excitation of capacitively coupled plasmas and the electrical asymmetry effect

T Lafleur - Plasma Sources Science and Technology, 2015 - iopscience.iop.org
Unequal areas of the powered and grounded electrodes in single-frequency capacitively
coupled plasmas (CCPs) are well-known to generate a DC self-bias voltage and an …

Fundamental study towards a better understanding of low pressure radio-frequency plasmas for industrial applications

YX Liu, QZ Zhang, K Zhao, YR Zhang, F Gao… - Chinese …, 2022 - iopscience.iop.org
Two classic radio-frequency (RF) plasmas, ie, the capacitively and the inductively coupled
plasmas (CCP and ICP), are widely employed in material processing, eg, etching and thin …

Ionization by Drift and Ambipolar Electric Fields in Electronegative Capacitive<? format?> Radio Frequency Plasmas

J Schulze, A Derzsi, K Dittmann, T Hemke… - Physical review …, 2011 - APS
Unlike α-and γ-mode operation, electrons accelerated by strong drift and ambipolar electric
fields in the plasma bulk and at the sheath edges are found to dominate the ionization in …

Experimental observation and computational analysis of striations in electronegative capacitively coupled radio-frequency plasmas

YX Liu, E Schüngel, I Korolov, Z Donkó, YN Wang… - Physical review …, 2016 - APS
Self-organized spatial structures in the light emission from the ion-ion capacitive rf plasma of
a strongly electronegative gas (CF 4) are observed experimentally for the first time. Their …

Electron power absorption dynamics in capacitive radio frequency discharges driven by tailored voltage waveforms in CF4

S Brandt, B Berger, E Schüngel, I Korolov… - Plasma Sources …, 2016 - iopscience.iop.org
The power absorption dynamics of electrons and the electrical asymmetry effect in
capacitive radio-frequency plasmas operated in CF 4 and driven by tailored voltage …

2D particle-in-cell simulations of geometrically asymmetric low-pressure capacitive RF plasmas driven by tailored voltage waveforms

L Wang, P Hartmann, Z Donko, YH Song… - … Sources Science and …, 2021 - iopscience.iop.org
The effects of the simultaneous presence of two different types of plasma asymmetry, viz,
geometric and electrical, on low-pressure capacitively coupled argon discharges are studied …

Ion flux asymmetry in radiofrequency capacitively-coupled plasmas excited by sawtooth-like waveforms

B Bruneau, T Novikova, T Lafleur… - Plasma Sources …, 2014 - iopscience.iop.org
Using particle-in-cell simulations, we predict that it is possible to obtain a significant
difference between the ion flux to the powered electrode and that to the grounded electrode …

Magnetical asymmetry effect in capacitively coupled plasmas: effects of the magnetic field gradient, pressure, and gap length

S Yang, L Chang, Y Zhang… - Plasma Sources Science …, 2018 - iopscience.iop.org
By applying the asymmetric magnetic field to a discharge, the dc self-bias and asymmetric
plasma response can be generated even in a geometrically and electrically symmetric …

Multifold study of volume plasma chemistry in Ar/CF4 and Ar/CHF3 CCP discharges

OV Proshina, TV Rakhimova, AI Zotovich… - Plasma Sources …, 2017 - iopscience.iop.org
Low-pressure RF plasma in fluorohydrocarbon gas mixtures is widely used in modern
microelectronics, eg in the etching of materials with a low dielectric constant (low-k) …

Ion energy distribution functions in a dual-frequency low-pressure capacitively-coupled plasma: experiments and particle-in-cell simulation

JC Wang, P Tian, J Kenney, S Rauf… - Plasma Sources …, 2021 - iopscience.iop.org
Abstract Low-pressure (< 10 s mTorr) multi-frequency capacitively coupled plasmas (CCPs)
are essential for critical plasma processing applications such as high aspect ratio dielectric …