Finite-Element Analysis of Corona Discharge Onset in Air With Artificial Diffusion Scheme and Under Fowler–Nordheim Electron Emission

Lee, Se-Hee; Lee, Seyeon; Chung, Young-Ki; Park, Il-Han

doi:10.1109/tmag.2007.892469

Cited by 31 publications

(12 citation statements)

References 7 publications

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“…In the discharge simulation, the material functions are used similarly to those presented in [5]. The discharge current is calculated by the generalized energy approach, which yields reliable results when combined with the FEM [6][7][8].…”

Section: Fully Coupled Hydrodynamic Diffusion-drift Models For Dischamentioning

confidence: 99%

“…In this array, the columns are assumed mutually orthogonal, and the three factors, A, B, and C, correspond to the three design parameters with three levels [i.e., photoemission coefficient (A), background ionization (B), and number of initial charges (C) used on discharge simulation]. The performance, y i , in (8), among the nine combinations of design parameters, is evaluated in terms of the delay time required for reaching a certain current level of 0.1 mA in Table 2. The sensitivity of each design parameter and its performance are represented by the value of SN ratio.…”

Section: Assessment Of Secondary Effects For Simulation Parametersmentioning

confidence: 99%

“…where A denotes the photoemission coefficient, B the background ionization, and C the number of initial charges. where Time denotes the specific time to reach 0.1 mA, MSD denotes the mean square deviation, and SN ratio denotes the signal-to-noise ratio that can be calculated by (8). Fig.…”

Section: Assessment Of Secondary Effects For Simulation Parametersmentioning

confidence: 99%

“…In a quest to explore discharge phenomena, the finite difference method or finite element method (FEM), coupled with the method of characteristics or flux corrected transport method, has been used to date [1][2][3][4][5][6][7][8]. The governing equations for the discharge analysis are generally composed of two kinds of differential equations: the first-order charge transport equation and the secondorder electric field equation.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Accurate Prediction Method of Breakdown Voltage in Air at Atmospheric Pressure

Kim¹,

Lee²,

Georghiou³

et al. 2012

Journal of Electrical Engineering and Technology

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-To predict accurately the breakdown voltage in air at atmospheric pressure, a fully coupled finite element analysis combining the hydrodynamic diffusion-drift equations with Poisson's equation is proposed in the current paper. As three kinds of charged transport particles are nonlinearly coupled with spatial electric fields, the equations should be solved by an iterative numerical scheme, in which secondary effects, such as photoemission and photoionization, are considered. The proposed method has been successfully applied to evaluate the breakdown voltage in circular parallel-plane electrodes. Its validity has been proved through the comparison of the predicted and experimental results. The effects of numerical conditions of the initial charge, photoemission, and background ionization on the discharge phenomena are quantitatively assessed through Taguchi's design of experiment method.

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Section: Fully Coupled Hydrodynamic Diffusion-drift Models For Dischamentioning

confidence: 99%

Section: Assessment Of Secondary Effects For Simulation Parametersmentioning

confidence: 99%

Section: Assessment Of Secondary Effects For Simulation Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Accurate Prediction Method of Breakdown Voltage in Air at Atmospheric Pressure

Kim¹,

Lee²,

Georghiou³

et al. 2012

Journal of Electrical Engineering and Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…The most frequently used algorithms are the hydrodynamic diffusion-drift model incorporating flux-corrected-transport (FCT) method and particle-in-cell (PIC) method [2][3][4][5][6]. In this paper, we proposed a full finite element approach where the charge transport equations of hydrodynamic diffusion-drift model and the electric field equation were numerically solved in a fully coupled system by using a standard finite element procedure for transient analysis [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

FE Analysis of Plasma Discharge and Sheath Characterization in Dry Etching Reactor

Yu¹,

Kim²,

Lee³

et al. 2014

Journal of Electrical Engineering and Technology

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-We present a full finite element analysis for plasma discharge in etching process of semiconductor circuit. The charge transport equations of hydrodynamic diffusion-drift model and the electric field equation were numerically solved in a fully coupled system by using a standard finite element procedure for transient analysis. The proposed method was applied to a real plasma reactor in order to characterize the plasma sheath that is closely related to the yield of the etching process. Throughout the plasma discharge analysis, the base electrode of reactor was tested and modified for improving the uniformity around the wafer edge. The experiment and numerical results were examined along with SEM data of etching quality. The feasibility and usefulness of the proposed method was shown by both numerical and experimental results.

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Dynamics of surface charge and electric field distributions on basin‐type insulator in GIS/GIL due to voltage polarity reversal

et al. 2020

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In this study, a simulation model of surface charge accumulation has been established. The model considers three accumulation ways, i.e. electrical conduction within the gas, through insulator volume and along the insulator surface. The generation, diffusion, drift and recombination of charge carriers are also taken into account. Based on it, the influence of polarity reversal, reversal time on surface charge and electric field distribution on a basin-type insulator are studied. The polarity of the surface charges and the direction of the electric field change after the voltage polarity reversal. When the preload voltage is equal to reversal voltage, the surface charge and the electric field distributions at steady state before and after voltage polarity reversal are all the same with opposite sign, and not affected by the reversal time. However, the time to reach the steady state varies with different reversal time. The steady-state surface charge and electric field increased with the rise of reversal voltage. The transient normal and tangential electric field would not exceed the value of the steady state, which means voltage polarity reversal has no additional influence on insulation performance. This research can provide guidance to the design and manufacture of DC GIS/GIL.

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Finite-Element Analysis of Corona Discharge Onset in Air With Artificial Diffusion Scheme and Under Fowler–Nordheim Electron Emission

Cited by 31 publications

References 7 publications

Accurate Prediction Method of Breakdown Voltage in Air at Atmospheric Pressure

Accurate Prediction Method of Breakdown Voltage in Air at Atmospheric Pressure

FE Analysis of Plasma Discharge and Sheath Characterization in Dry Etching Reactor

Dynamics of surface charge and electric field distributions on basin‐type insulator in GIS/GIL due to voltage polarity reversal

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