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Characteristics of Electron Conduction in a Gas under a Quadrupole Magnetic Field and Radio-Frequency Electric Fields
Title: | Characteristics of Electron Conduction in a Gas under a Quadrupole Magnetic Field and Radio-Frequency Electric Fields |
Authors: | Sugawara, Hirotake Browse this author →KAKEN DB |
Keywords: | electron swarm | electron transport | Monte Carlo simulation | quadrupole magnetic |
Issue Date: | May-2013 |
Publisher: | The Japan Society of Applied Physics |
Journal Title: | Japanese Journal of Applied Physics |
Volume: | 52 |
Start Page: | 056101 |
Publisher DOI: | 10.7567/JJAP.52.056101 |
Abstract: | Electron conduction in CF4 under a simplified model quadrupole magnetic field (QMF) and rf electric fields at f ¼ 13:56, 27.12, and 40.68MHz was analyzed using a Monte Carlo method, following the manner of electron swarm analyses. This field configuration simulated current paths of magnetic neutral loop discharge plasmas used for dry etching. The electron conduction therein was focused on as an elemental process of plasma power deposition. The electrons formed a star-shaped distribution with four rays along the separatrices of the QMF. The effective electron conductivity quantified as the amplitude of mean electron velocity was high around the central axis. The time-averaged mean electron velocities in the four regions of the QMF were biased under a rectification effect of the magnetic field. With increasing f , the high-conductivity region expanded and ionization was promoted. An enhancement of plasma power deposition under high driving frequencies was indicated. |
Rights: | © 2013 The Japan Society of Applied Physics |
Relation: | http://jjap.jsap.jp/link?JJAP/52/056101/ |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/53390 |
Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 菅原 広剛
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