JP7308110B2 - シリコン酸化膜をエッチングする方法及びプラズマ処理装置 - Google Patents
シリコン酸化膜をエッチングする方法及びプラズマ処理装置 Download PDFInfo
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- H01L21/3105—After-treatment
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Description
Claims (6)
- 基板のシリコン酸化膜をエッチングする方法であって、前記基板は、前記シリコン酸化膜及び該シリコン酸化膜上に設けられたマスクを有し、該方法は、
フルオロカーボンガス、フッ素を含有せず炭素を含有するガス、及び酸素含有ガスを含む第1の処理ガスから形成される第1のプラズマを用いて前記基板に対して第1のプラズマ処理を実行する工程であり、該第1のプラズマ処理の実行中に前記基板の温度は第1の温度に設定され、該第1のプラズマ処理は前記マスク上に炭素含有物質を堆積させ、且つ、前記シリコン酸化膜をエッチングする、該工程と、
第1のプラズマ処理を実行する前記工程の後に、フルオロカーボンガスを含む第2の処理ガスから形成される第2のプラズマを用いて前記基板に第2のプラズマ処理を実行する工程であり、該第2のプラズマ処理の実行中に前記基板の温度は第2の温度に設定され、該第2のプラズマ処理は前記シリコン酸化膜をエッチングする、該工程と、
を含み、
前記第1の温度は前記第2の温度よりも低く、
第1のプラズマ処理を実行する前記工程及び第2のプラズマ処理を実行する前記工程は、プラズマ処理装置を用いて実行され、
第1のプラズマ処理を実行する前記工程において前記第1のプラズマを生成するために前記プラズマ処理装置で用いられる高周波電力は、第2のプラズマ処理を実行する前記工程において前記第2のプラズマを生成するために前記プラズマ処理装置で用いられる高周波電力よりも小さい、
方法。 - 第1の処理ガスと第2の処理ガスが同じ処理ガスである、請求項1に記載の方法。
- 前記第1の温度が前記第2の温度よりも低くなるように、第1のプラズマ処理を実行する前記工程及び第2のプラズマ処理を実行する前記工程において、前記基板を支持する基板支持器内のヒータの電力量が調整される、請求項1又は2に記載の方法。
- 前記第1の処理ガスにおいて、フッ素を含有せず炭素を含有する前記ガスは、COガスであり、前記酸素含有ガスは、O2ガスである、請求項1~3の何れか一項に記載の方法。
- 前記マスクは、有機材料から形成されたマスクである、請求項1~4の何れか一項に記載の方法。
- チャンバと、
前記チャンバ内に設けられた基板支持器と、
フルオロカーボンガス、フッ素を含有せず炭素を含有するガス、及び酸素含有ガスを含む第1の処理ガス並びにフルオロカーボンガスを含む第2の処理ガスを前記チャンバ内に供給するように構成されたガス供給部と、
前記チャンバ内でガスからプラズマを生成するために高周波電力を発生するように構成された高周波電源と、
前記ガス供給部及び前記高周波電源を制御するように構成された制御部と、
を備え、
前記制御部は、
基板のシリコン酸化膜をエッチングし、且つ、該シリコン酸化膜上に設けられた該基板のマスク上に炭素含有堆積物を形成するために、前記チャンバ内に前記第1の処理ガスを供給するよう前記ガス供給部を制御し、前記チャンバ内で前記第1の処理ガスから第1のプラズマを生成するよう前記高周波電源を制御する第1の制御を実行し、
前記シリコン酸化膜を更にエッチングするために、前記チャンバ内に前記第2の処理ガスを供給するよう前記ガス供給部を制御し、前記チャンバ内で前記第2の処理ガスから第2のプラズマを生成するよう前記高周波電源を制御する第2の制御を実行し、
前記第1の制御において前記基板の温度を、前記第2の制御において設定する前記基板の温度よりも低い温度に設定し、
前記第1の制御において前記第1のプラズマを生成するために用いる前記高周波電力を、前記第2の制御において前記第2のプラズマを生成するために用いる前記高周波電力よりも小さい電力に設定する、
プラズマ処理装置。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019168083A JP7308110B2 (ja) | 2019-09-17 | 2019-09-17 | シリコン酸化膜をエッチングする方法及びプラズマ処理装置 |
| KR1020200112679A KR102839620B1 (ko) | 2019-09-17 | 2020-09-03 | 실리콘 산화막을 에칭하는 방법 및 플라즈마 처리 장치 |
| US17/010,983 US20210082712A1 (en) | 2019-09-17 | 2020-09-03 | Method of etching silicon oxide film and plasma processing apparatus |
| CN202010919630.4A CN112530799B (zh) | 2019-09-17 | 2020-09-04 | 蚀刻氧化硅膜的方法及等离子体处理装置 |
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| JP2019168083A JP7308110B2 (ja) | 2019-09-17 | 2019-09-17 | シリコン酸化膜をエッチングする方法及びプラズマ処理装置 |
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| JP2021048157A JP2021048157A (ja) | 2021-03-25 |
| JP7308110B2 true JP7308110B2 (ja) | 2023-07-13 |
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| CN117577524A (zh) * | 2020-09-18 | 2024-02-20 | 东京毅力科创株式会社 | 蚀刻方法和等离子体处理装置 |
| US20230298860A1 (en) * | 2022-03-15 | 2023-09-21 | Semes Co., Ltd. | Apparatus And Method Of Treating Substrate |
| WO2025089101A1 (ja) * | 2023-10-24 | 2025-05-01 | 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004319972A (ja) | 2003-03-31 | 2004-11-11 | Tokyo Electron Ltd | エッチング方法及びエッチング装置 |
| JP2006128245A (ja) | 2004-10-27 | 2006-05-18 | Sony Corp | 絶縁膜の加工方法 |
| JP2011023766A (ja) | 2004-06-23 | 2011-02-03 | Hitachi High-Technologies Corp | ドライエッチング方法およびその装置 |
| JP2018120924A (ja) | 2017-01-24 | 2018-08-02 | 東京エレクトロン株式会社 | プラズマ処理装置のチャンバ本体の内部のクリーニングを含むプラズマ処理方法 |
| JP2019087626A (ja) | 2017-11-07 | 2019-06-06 | 東京エレクトロン株式会社 | プラズマエッチング方法 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4723871B2 (ja) * | 2004-06-23 | 2011-07-13 | 株式会社日立ハイテクノロジーズ | ドライエッチング装置 |
| JP6049527B2 (ja) * | 2013-04-05 | 2016-12-21 | 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 |
| JP6211947B2 (ja) * | 2013-07-31 | 2017-10-11 | 東京エレクトロン株式会社 | 半導体装置の製造方法 |
| JP2016136606A (ja) * | 2015-01-16 | 2016-07-28 | 東京エレクトロン株式会社 | エッチング方法 |
| JP6339963B2 (ja) * | 2015-04-06 | 2018-06-06 | 東京エレクトロン株式会社 | エッチング方法 |
| JP6541439B2 (ja) * | 2015-05-29 | 2019-07-10 | 東京エレクトロン株式会社 | エッチング方法 |
| JP6494424B2 (ja) * | 2015-05-29 | 2019-04-03 | 東京エレクトロン株式会社 | エッチング方法 |
| KR102362462B1 (ko) * | 2016-03-29 | 2022-02-14 | 도쿄엘렉트론가부시키가이샤 | 피처리체를 처리하는 방법 |
| US10037890B2 (en) * | 2016-10-11 | 2018-07-31 | Lam Research Corporation | Method for selectively etching with reduced aspect ratio dependence |
| JP6948181B2 (ja) * | 2017-08-01 | 2021-10-13 | 東京エレクトロン株式会社 | 多層膜をエッチングする方法 |
-
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- 2019-09-17 JP JP2019168083A patent/JP7308110B2/ja active Active
-
2020
- 2020-09-03 US US17/010,983 patent/US20210082712A1/en not_active Abandoned
- 2020-09-03 KR KR1020200112679A patent/KR102839620B1/ko active Active
- 2020-09-04 CN CN202010919630.4A patent/CN112530799B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004319972A (ja) | 2003-03-31 | 2004-11-11 | Tokyo Electron Ltd | エッチング方法及びエッチング装置 |
| JP2011023766A (ja) | 2004-06-23 | 2011-02-03 | Hitachi High-Technologies Corp | ドライエッチング方法およびその装置 |
| JP2006128245A (ja) | 2004-10-27 | 2006-05-18 | Sony Corp | 絶縁膜の加工方法 |
| JP2018120924A (ja) | 2017-01-24 | 2018-08-02 | 東京エレクトロン株式会社 | プラズマ処理装置のチャンバ本体の内部のクリーニングを含むプラズマ処理方法 |
| JP2019087626A (ja) | 2017-11-07 | 2019-06-06 | 東京エレクトロン株式会社 | プラズマエッチング方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102839620B1 (ko) | 2025-07-29 |
| JP2021048157A (ja) | 2021-03-25 |
| US20210082712A1 (en) | 2021-03-18 |
| CN112530799B (zh) | 2025-09-09 |
| KR20210032904A (ko) | 2021-03-25 |
| CN112530799A (zh) | 2021-03-19 |
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