JP7220626B2 - プラズマ処理方法及びプラズマ処理装置 - Google Patents
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Description
<工程ST1の条件>
・チャンバ10内の圧力:20mTorr(2.666Pa)
・四塩化ケイ素ガスの流量:5sccm
・酸素ガスの流量:50sccm
・アルゴンガスの流量:250sccm
・第1の高周波電力:60MHz、1000W
・第2の高周波電力:0W
・周波数f(周期PTの逆数):400kHz
・パルス状の負極性の直流電圧のデューティー比:0.3又は0.5
・パルス状の負極性の直流電圧の値:0V、-500V、又は-900V
Claims (11)
- プラズマ処理装置を用いて実行されるプラズマ処理方法であって、
前記プラズマ処理装置は、
内壁面を有する側壁を含むチャンバと、
前記チャンバ内に設けられた下部電極を含む基板支持器と、
前記基板支持器の上方に設けられた上部電極と、
前記チャンバ内でプラズマを生成するための高周波電源と、
前記上部電極に電気的に接続された直流電源装置と、
を備え、
前記直流電源装置は、パルス状の負極性の直流電圧を周期的に発生するように構成されており、
該プラズマ処理方法は、
前記高周波電源から高周波電力を供給することにより、前記チャンバ内で成膜ガスからプラズマを生成する工程と、
前記プラズマからの化学種を前記内壁面上に堆積させることにより、前記内壁面上に保護膜を形成する工程と、
を含み、
保護膜を形成する前記工程において、前記直流電源装置から前記パルス状の負極性の直流電圧が前記上部電極に周期的に印加される、
プラズマ処理方法。 - 前記成膜ガスはシリコン含有ガスを含む、請求項1に記載のプラズマ処理方法。
- 前記シリコン含有ガスはハロゲン化ケイ素ガスである、請求項2に記載のプラズマ処理方法。
- 前記ハロゲン化ケイ素ガスは四塩化ケイ素ガスである、請求項3に記載のプラズマ処理方法。
- 前記成膜ガスは炭素含有ガスを含む、請求項1に記載のプラズマ処理方法。
- 前記炭素含有ガスは炭化水素ガス又はフルオロカーボンガスである、請求項5に記載のプラズマ処理方法。
- 前記直流電源装置の出力電圧は、周期内の第1の期間では、前記パルス状の負極性の直流電圧であり、前記周期内の残りの第2の期間では、ゼロボルトである、請求項1~6の何れか一項に記載のプラズマ処理方法。
- 保護膜を形成する前記工程における前記直流電源装置の前記出力電圧の実効値は、0Vよりも小さく-848V以上であり、
前記実効値は、前記周期の時間長に対する前記第1の期間の時間長の割合であるデューティー比の平方根と前記第1の期間における前記パルス状の負極性の直流電圧の値との間の積である、
請求項7に記載のプラズマ処理方法。 - 保護膜を形成する前記工程の後に、前記チャンバ内で基板のプラズマ処理を実行する工程を更に含み、
プラズマ処理を実行する前記工程において、
前記高周波電源から高周波電力を供給することにより前記チャンバ内で処理ガスからプラズマが生成され、
前記直流電源装置の前記出力電圧の前記実効値が、保護膜を形成する前記工程における前記実効値よりも小さい値に設定され、
前記処理ガスから生成された前記プラズマからの化学種によって前記基板が処理される、
請求項8に記載のプラズマ処理方法。 - 前記保護膜を除去する工程を更に含み、
前記保護膜を除去する前記工程において、
前記高周波電源から高周波電力を供給することにより前記チャンバ内でクリーニングガスからプラズマが生成され、
前記直流電源装置の前記出力電圧の前記実効値が、保護膜を形成する前記工程における前記実効値よりも大きい値に設定され、
前記クリーニングガスから生成された前記プラズマからの化学種によって前記保護膜が処理される、
請求項8又は9に記載のプラズマ処理方法。 - 内壁面を有する側壁を含むチャンバと、
前記チャンバ内に設けられた下部電極を含む基板支持器と、
前記基板支持器の上方に設けられた上部電極と、
前記チャンバ内でプラズマを生成するための高周波電源と、
前記上部電極に電気的に接続された直流電源装置と、
前記高周波電源及び前記直流電源装置を制御するように構成された制御部と、
を備え、
前記直流電源装置は、パルス状の負極性の直流電圧を周期的に発生するように構成されており、
前記制御部は、
前記チャンバ内で成膜ガスからプラズマを生成するために高周波電力を供給するように前記高周波電源を制御し、
前記プラズマからの化学種を前記内壁面上に堆積させることにより前記内壁面上に保護膜を形成するために前記パルス状の負極性の直流電圧を前記上部電極に周期的に印加するように前記直流電源装置を制御する、
プラズマ処理装置。
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
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| JP2019112618A JP7220626B2 (ja) | 2019-06-18 | 2019-06-18 | プラズマ処理方法及びプラズマ処理装置 |
| KR1020200068436A KR102919779B1 (ko) | 2019-06-18 | 2020-06-05 | 플라즈마 처리 방법 및 플라즈마 처리 장치 |
| CN202411207915.XA CN119092390A (zh) | 2019-06-18 | 2020-06-08 | 等离子体处理方法及等离子体处理装置 |
| CN202010511382.XA CN112103165B (zh) | 2019-06-18 | 2020-06-08 | 等离子体处理方法及等离子体处理装置 |
| SG10202005364XA SG10202005364XA (en) | 2019-06-18 | 2020-06-08 | Plasma processing method and plasma processing apparatus |
| TW113142336A TW202523902A (zh) | 2019-06-18 | 2020-06-09 | 電漿處理方法及電漿處理裝置 |
| TW109119299A TWI865541B (zh) | 2019-06-18 | 2020-06-09 | 電漿處理方法及電漿處理裝置 |
| US16/896,304 US11251048B2 (en) | 2019-06-18 | 2020-06-09 | Plasma processing method and plasma processing apparatus |
| KR1020250202944A KR20260007518A (ko) | 2019-06-18 | 2025-12-18 | 플라즈마 처리 방법 및 플라즈마 처리 장치 |
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| KR (2) | KR102919779B1 (ja) |
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| JP7158308B2 (ja) * | 2019-02-14 | 2022-10-21 | 東京エレクトロン株式会社 | プラズマ処理装置及びプラズマ処理方法 |
| CN115692190A (zh) | 2021-07-28 | 2023-02-03 | 东京毅力科创株式会社 | 等离子体处理方法、等离子体处理装置以及系统 |
| JP7679337B2 (ja) * | 2021-07-28 | 2025-05-19 | 東京エレクトロン株式会社 | プラズマ処理方法及びプラズマ処理装置 |
| CN115881505A (zh) | 2021-09-29 | 2023-03-31 | 东京毅力科创株式会社 | 等离子体处理方法和等离子体处理系统 |
| JP7671684B2 (ja) * | 2021-11-30 | 2025-05-02 | 東京エレクトロン株式会社 | エッチング方法及びプラズマ処理装置 |
| JP2023130163A (ja) * | 2022-03-07 | 2023-09-20 | キオクシア株式会社 | クリーニング方法、半導体装置の製造方法、プラズマ処理装置、及び外周リングセット |
| CN118910591B (zh) * | 2024-07-18 | 2025-10-10 | 北京北方华创微电子装备有限公司 | 一种形成保护膜的方法、保护膜及半导体工艺设备 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060037701A1 (en) | 2004-06-21 | 2006-02-23 | Tokyo Electron Limited | Plasma processing apparatus and method |
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| TWI447802B (zh) * | 2004-06-21 | 2014-08-01 | 東京威力科創股份有限公司 | A plasma processing apparatus, a plasma processing method, and a computer-readable recording medium |
| US10658161B2 (en) * | 2010-10-15 | 2020-05-19 | Applied Materials, Inc. | Method and apparatus for reducing particle defects in plasma etch chambers |
| US8753724B2 (en) * | 2012-09-26 | 2014-06-17 | Front Edge Technology Inc. | Plasma deposition on a partially formed battery through a mesh screen |
| JP5956933B2 (ja) * | 2013-01-15 | 2016-07-27 | 東京エレクトロン株式会社 | プラズマ処理方法及びプラズマ処理装置 |
| JP6320248B2 (ja) * | 2014-03-04 | 2018-05-09 | 東京エレクトロン株式会社 | プラズマエッチング方法 |
| JP6632426B2 (ja) * | 2016-02-29 | 2020-01-22 | 東京エレクトロン株式会社 | プラズマ処理装置及びプリコート処理方法 |
| JP6971267B2 (ja) * | 2016-06-20 | 2021-11-24 | アプライド マテリアルズ インコーポレイテッドApplied Materials, Incorporated | 高温で処理チャンバ内のホウ素―炭素残留物を除去するための洗浄プロセス |
| JP6826955B2 (ja) * | 2017-06-14 | 2021-02-10 | 東京エレクトロン株式会社 | プラズマ処理装置及びプラズマ処理方法 |
| JP2019008945A (ja) * | 2017-06-22 | 2019-01-17 | 東京エレクトロン株式会社 | アンテナ及びプラズマ処理装置 |
| JP7045152B2 (ja) * | 2017-08-18 | 2022-03-31 | 東京エレクトロン株式会社 | プラズマ処理方法及びプラズマ処理装置 |
| US10727075B2 (en) * | 2017-12-22 | 2020-07-28 | Applied Materials, Inc. | Uniform EUV photoresist patterning utilizing pulsed plasma process |
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| US20060037701A1 (en) | 2004-06-21 | 2006-02-23 | Tokyo Electron Limited | Plasma processing apparatus and method |
| JP2006270018A (ja) | 2004-06-21 | 2006-10-05 | Tokyo Electron Ltd | プラズマ処理装置およびプラズマ処理方法、ならびにコンピュータ読み取り可能な記憶媒体 |
| JP2013033856A (ja) | 2011-08-02 | 2013-02-14 | Tokyo Electron Ltd | プラズマエッチング方法 |
| JP2014082228A (ja) | 2012-10-12 | 2014-05-08 | Tokyo Electron Ltd | プラズマエッチング方法 |
| US20150340243A1 (en) | 2012-10-12 | 2015-11-26 | Tokyo Electron Limited | Plasma etching method |
| JP2016012712A (ja) | 2014-06-02 | 2016-01-21 | 東京エレクトロン株式会社 | プラズマ処理方法及びプラズマ処理装置 |
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| US11251048B2 (en) | 2022-02-15 |
| SG10202005364XA (en) | 2021-01-28 |
| KR20200144479A (ko) | 2020-12-29 |
| CN112103165A (zh) | 2020-12-18 |
| TW202523902A (zh) | 2025-06-16 |
| TW202102717A (zh) | 2021-01-16 |
| KR102919779B1 (ko) | 2026-01-30 |
| CN112103165B (zh) | 2024-09-20 |
| US20200402805A1 (en) | 2020-12-24 |
| TWI865541B (zh) | 2024-12-11 |
| CN119092390A (zh) | 2024-12-06 |
| KR20260007518A (ko) | 2026-01-14 |
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