JP2022109089A - アンテナ及びプラズマ処理装置 - Google Patents
アンテナ及びプラズマ処理装置 Download PDFInfo
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- JP2022109089A JP2022109089A JP2021004432A JP2021004432A JP2022109089A JP 2022109089 A JP2022109089 A JP 2022109089A JP 2021004432 A JP2021004432 A JP 2021004432A JP 2021004432 A JP2021004432 A JP 2021004432A JP 2022109089 A JP2022109089 A JP 2022109089A
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Abstract
Description
前記処理室上にアンテナ部材を配置し、前記アンテナ部材の各測定点において酸化量又は窒化量が所定値となる前記アンテナ部材の位置を求め、前記各測定点において求めた前記アンテナ部材の位置に基づいて形状が定められている。
図1に、本発明の実施形態に係るプラズマ処理装置の一例の概略縦断面図を示す。また、図2に、本実施形態に係るプラズマ処理装置の一例の概略平面図を示す。なお、図2では、説明の便宜上、天板11の描画を省略している。
次に、本発明の実施形態に係るアンテナ83について説明する。上述のように、本実施形態に係るアンテナ83は、立体的に変形が可能である。
2 サセプタ
24 凹部
31、32 処理ガスノズル
33~35 プラズマ処理用ガスノズル
36 ガス吐出孔
41、42 分離ガスノズル
80 プラズマ発生装置
81 アンテナ装置
83 アンテナ
85 高周波電源
86 接続電極
87 上下動機構
88 リニアエンコーダー
89 支点治具
95 ファラデーシールド
120~122 ガス供給源
130~132 流量制御器
830、830a~830d アンテナ部材
831 連結部材
832 スペーサ
P1 第1の処理領域(原料ガス供給領域)
P2 第2の処理領域(反応ガス供給領域)
P3 第3の処理領域(プラズマ処理領域)
W ウエハ
Claims (8)
- 所定の処理室上に配置されて用いられ、形状により前記処理室内における基板処理の酸化量又は窒化量が調整可能な誘導結合型プラズマ用のアンテナであって、
前記処理室上にアンテナ部材を配置し、前記アンテナ部材の各測定点において酸化量又は窒化量が所定値となる前記アンテナ部材の位置を求め、前記各測定点において求めた前記アンテナ部材の位置に基づいて形状が定められたアンテナ。 - 前記所定値は、全体の測定値の中で前記酸化量又は前記窒化量が最小となる値を基準として正規化した値である請求項1に記載のアンテナ。
- 前記所定値は、前記各地点において共通の値が用いられる請求項1又は2に記載のアンテナ。
- 前記形状は、前記アンテナ部材として用いられている金属の加工性を考慮して定められる請求項1~3のいずれか一項に記載のアンテナ。
- 前記アンテナ部材の位置は、前記処理室の上面からの距離で定めれる請求項1~4のいずれか一項に記載のアンテナ。
- 前記処理室内には、基板を周方向に沿って配置することが可能なサセプタが設けられ、
前記サセプタの半径方向に沿って延びる形状を有する請求項1~5のいずれか一項に記載のアンテナ。 - 前記サセプタの半径方向の中心側において高い位置に配置され、外周側において低い位置に配置される請求項6に記載のアンテナ。
- 処理室と、
前記処理室内に設けられ、周方向に沿って基板を配置することが可能なサセプタと、
前記サセプタに、酸化ガス及び窒化ガスの少なくとも一方を含む処理ガスを供給する処理ガス供給部と、
前記処理室上に配置され、形状により前記処理室内における基板処理の酸化量又は窒化量が調整可能な誘導結合型プラズマ用のアンテナと、を有し、
前記アンテナは、各測定点において酸化量又は窒化量が所定値となるアンテナ部材の位置を求め、前記各測定点において求めたアンテナ部材の位置に基づいて形状が定められたプラズマ処理装置。
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