PLASMA GENERATION DEVICE
PROBLEM TO BE SOLVED: To provide a plasma generation device of inductively-coupled type that is able to effectively use power by intensifying bonding compared to conventional one.SOLUTION: A plasma generation device comprises: a chamber 1 formed from an electric conductor having a toroidal discharge...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng ; jpn |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a plasma generation device of inductively-coupled type that is able to effectively use power by intensifying bonding compared to conventional one.SOLUTION: A plasma generation device comprises: a chamber 1 formed from an electric conductor having a toroidal discharge space, the chamber being provided with an insulation gap 11a for insulating a part in a toroidal direction; a high frequency power source 3 that outputs high-frequency current; and a connection line 4 that connects the high frequency power source 3 to the chamber 1 so as to sandwich the insulation gap 11a therebetween. High-frequency current output from the high-frequency power source 3 flows in the chamber 1 in the toroidal direction, so that a magnetic flux penetrating the center of the toroidal of the chamber 1 changes. Due to a change in magnetic flux, plasma current flows in a discharge space inside the chamber 1 in the toroidal direction. A path along which plasma current flows is inside a path along which high-frequency current flows. Both the paths are close to each other and the central axes of both the paths almost coincide. Accordingly, leak magnetic flux can be decreased and bonding can be intensified.SELECTED DRAWING: Figure 1
【課題】従来よりも結合を強めて、電力を有効利用できる誘導結合型のプラズマ生成装置を提供する。【解決手段】プラズマ生成装置において、トロイダル形状の放電空間を有する導体製のチャンバであって、トロイダル方向の一部を絶縁するための絶縁ギャップ11aが設けられているチャンバ1と、高周波電流を出力する高周波電源3と、絶縁ギャップ11aを挟むようにして、チャンバ1に高周波電源3を接続する接続線4とを備えるようにした。高周波電源3が出力した高周波電流が、チャンバ1をトロイダル方向に流れ、チャンバ1のトロイダルの中心を貫く磁束が変化する。磁束の変化により、チャンバ1の内側の放電空間をトロイダル方向にプラズマ電流が流れる。高周波電流が流れる経路の内側にプラズマ電流が流れる経路があり、両経路は近接して、両経路の中心軸がほぼ同じである。したがって、漏れ磁束を減少させることができ、結合を強めることができる。【選択図】図1 |
---|