JP2011096687A - プラズマ処理装置及びプラズマ処理方法 - Google Patents
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- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H01J37/32174—Circuits specially adapted for controlling the RF discharge
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
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Abstract
【解決手段】この誘導結合型プラズマエッチング装置において、チャンバ10の天井の誘電体壁52上の設けられるRFアンテナ54は、アンテナ室56内で誘電体窓52から離間してその上方に配置され、高周波給電部58からのRF給電ライン60,68に接続される一次コイル62と、この一次コイル62と電磁誘導により結合可能な位置で、かつこの一次コイル62よりも誘電体窓52の下面(処理空間と対向する面)の近くに配置される二次コイル64とを有している。
【選択図】 図1
Description
[第1のキャパシタンス調整例]
[第2のキャパシタンス調整例]
[第3のキャパシタンス調整例]
[第4のキャパシタンス調整例]
[第5のキャパシタンス調整例]
Claims (14)
- 天井に誘電体の窓を有する真空排気可能な処理容器と、
前記処理容器内で被処理基板を保持する基板保持部と、
前記基板に所望のプラズマ処理を施すために、前記処理容器内に所望の処理ガスを供給する処理ガス供給部と、
前記処理容器内で誘導結合により処理ガスのプラズマを生成するために、前記誘電体窓の上に設けられる第1のRFアンテナと、
前記処理ガスの高周波放電に適した周波数の高周波電力を前記RFアンテナに供給する第1の高周波給電部と
を具備し、
前記第1のRFアンテナが、前記誘電体窓の上またはその上方に配置され、かつ前記第1の高周波給電部に高周波給電ラインを介して電気的に接続される一次コイルと、前記一次コイルと電磁誘導により結合可能な位置で、かつ前記一次コイルよりも前記誘電体窓の下面に近くに配置される二次コイルとを有する、
プラズマ処理装置。 - 前記二次コイルに流れる誘導電流により前記処理容器内に誘導電界が発生し、前記誘導電界により前記処理ガスのプラズマが生成される、請求項1に記載のプラズマ処理装置。
- 前記二次コイルは、電気的にフローティング状態に置かれる、請求項1または請求項2に記載のプラズマ処理装置。
- 前記一次コイルおよび前記二次コイルは、前記誘電体窓に対して平行に配置される、請求項1〜3のいずれか一項に記載のプラズマ処理装置。
- 前記二次コイルの少なくとも一部が、前記誘電体窓の内部または前記処理容器内に設けられる、請求項1〜4のいずれか一項に記載のプラズマ処理装置。
- 前記処理容器内で誘導結合により処理ガスのプラズマを生成するために、前記第1のRFアンテナから独立して前記誘電体窓の近傍に設けられる第2のRFアンテナと、
前記処理ガスの高周波放電に適した周波数の高周波電力を前記第2のRFアンテナに供給する第2の高周波給電部と
を有する請求項1〜5のいずれか一項に記載のプラズマ処理装置。 - 前記二次コイルのループ内にコンデンサが設けられる、請求項1〜6のいずれか一項に記載のプラズマ処理装置。
- 前記コンデンサは可変コンデンサであり、前記基板上のプラズマ密度の径方向分布を制御するためにそのキャパシタンスが調整される、請求項7に記載のプラズマ処理装置。
- 前記二次コイルがコイル径の異なる複数の無端コイルを同軸状に配置してなる組コイルとして構成される、請求項1〜6のいずれか一項に記載のプラズマ処理装置。
- 少なくとも一部の前記無端コイルのループ内にコンデンサが設けられる、請求項9に記載のプラズマ処理装置。
- 前記コンデンサは可変コンデンサであり、前記基板上のプラズマ密度の径方向分布を制御するためにそのキャパシタンスが調整される、請求項10に記載のプラズマ処理装置。
- 前記一次コイルが複数巻きの同心型コイルからなり、
前記一次コイルの複数のターン部に前記二次コイルの複数の無端コイルがそれぞれ対向する、
請求項9〜11のいずれか一項に記載のプラズマ処理装置。 - 天井に誘電体の窓を有する真空排気可能な処理容器内で前記誘電体窓の下方に設定された所定位置に被処理基板を配置する工程と、
前記処理ガス供給部より前記処理容器内に所望の処理ガスを供給する工程と、
前記処理容器内を所定の圧力で減圧状態に維持する工程と、
前記誘電体窓の上方に配置されている一次コイルに高周波電源より所定周波数の高周波を印加して、前記一次コイルに高周波電流を流す工程と、
前記一次コイルよりも前記誘電体窓の下面に近くに配置されている二次コイルで、電磁誘導により前記高周波電流に応じた誘導電流を流す工程と、
前記二次コイルで流れる前記誘導電流に応じた高周波の磁界および誘導電界によって前記処理容器内の前記誘電体窓の近くで処理ガスのプラズマを生成する工程と、
生成された前記プラズマを前記処理容器内で拡散させる工程と、
前記プラズマの下で前記基板に所望のプラズマ処理を施す工程と
を有するプラズマ処理方法。 - 前記二次コイルのループ内に可変コンデンサを設け、
1枚の被処理基板に対するプラズマ処理の中で、プロセス条件の変更、変化または切り換えに応じて、前記可変コンデンサのキャパシタンスを可変制御する、
請求項13に記載のプラズマ処理方法。
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JP2009245990A JP5592098B2 (ja) | 2009-10-27 | 2009-10-27 | プラズマ処理装置及びプラズマ処理方法 |
TW105105466A TWI555446B (zh) | 2009-10-27 | 2010-10-26 | Plasma processing device and plasma processing method |
TW099136519A TWI540942B (zh) | 2009-10-27 | 2010-10-26 | Plasma processing device and plasma processing method |
US12/913,183 US9253867B2 (en) | 2009-10-27 | 2010-10-27 | Plasma processing apparatus and plasma processing method |
KR1020100105143A KR101737635B1 (ko) | 2009-10-27 | 2010-10-27 | 플라즈마 처리 장치 |
CN2010105254237A CN102056396B (zh) | 2009-10-27 | 2010-10-27 | 等离子体处理装置和等离子体处理方法 |
US15/008,064 US9997332B2 (en) | 2009-10-27 | 2016-01-27 | Plasma processing apparatus and plasma processing method |
US16/002,196 US20180308662A1 (en) | 2009-10-27 | 2018-06-07 | Plasma processing apparatus and plasma processing method |
US16/864,690 US20200357606A1 (en) | 2009-10-27 | 2020-05-01 | Plasma processing apparatus and plasma processing method |
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JP2012248578A (ja) * | 2011-05-25 | 2012-12-13 | Ulvac Japan Ltd | プラズマエッチング装置 |
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JP2012248578A (ja) * | 2011-05-25 | 2012-12-13 | Ulvac Japan Ltd | プラズマエッチング装置 |
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KR20130139779A (ko) * | 2012-06-13 | 2013-12-23 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치, 플라즈마 생성 장치, 안테나 구조체, 및 플라즈마 생성 방법 |
KR101720373B1 (ko) | 2012-06-13 | 2017-03-27 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치, 플라즈마 생성 장치, 안테나 구조체, 및 플라즈마 생성 방법 |
KR101718182B1 (ko) * | 2012-06-14 | 2017-03-20 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치, 플라즈마 생성 장치, 안테나 구조체, 및 플라즈마 생성 방법 |
KR20130140571A (ko) * | 2012-06-14 | 2013-12-24 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치, 플라즈마 생성 장치, 안테나 구조체, 및 플라즈마 생성 방법 |
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WO2020146034A1 (en) * | 2019-01-08 | 2020-07-16 | Applied Materials, Inc. | Recursive coils for inductively coupled plasmas |
JP7473760B2 (ja) | 2019-03-19 | 2024-04-24 | 東京エレクトロン株式会社 | Vhfプラズマ処理のためのシステム及び方法 |
WO2022113676A1 (ja) * | 2020-11-27 | 2022-06-02 | 日新電機株式会社 | プラズマ処理装置 |
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Also Published As
Publication number | Publication date |
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KR101737635B1 (ko) | 2017-05-18 |
TWI555446B (zh) | 2016-10-21 |
CN102056396A (zh) | 2011-05-11 |
US20180308662A1 (en) | 2018-10-25 |
US20160172160A1 (en) | 2016-06-16 |
US9997332B2 (en) | 2018-06-12 |
KR20110046351A (ko) | 2011-05-04 |
TW201143549A (en) | 2011-12-01 |
TW201626863A (zh) | 2016-07-16 |
US9253867B2 (en) | 2016-02-02 |
US20200357606A1 (en) | 2020-11-12 |
CN102056396B (zh) | 2013-06-19 |
JP5592098B2 (ja) | 2014-09-17 |
TWI540942B (zh) | 2016-07-01 |
US20110094997A1 (en) | 2011-04-28 |
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