JP7557969B2 - エッチング方法、基板処理装置、及び基板処理システム - Google Patents
エッチング方法、基板処理装置、及び基板処理システム Download PDFInfo
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Description
Claims (18)
- a)成膜ガスを用いて基板の表面上に膜を形成する工程であり、該基板はマスク及び該マスクがその上に設けられた領域を有し、該マスクは該領域を部分的に露出させる開口を提供し、該膜は前記領域の材料と同種の材料から形成される、該工程と、
b)前記領域をエッチングする工程と、
を含み、
前記a)において、前記膜は、その厚さが前記基板内での該基板の上端からの深さに応じて減少するように形成される、エッチング方法。 - 前記b)において、前記膜のエッチングレートは前記領域のエッチングレート以上又は該領域の該エッチングレート以下である、請求項1に記載のエッチング方法。
- 前記領域は酸化シリコン又は窒化シリコンから形成されている、請求項1又は2に記載のエッチング方法。
- 前記領域は、酸化シリコン、窒化シリコン、及び多結晶シリコンのうち二つ以上の材料からそれぞれ形成された複数の層を有する、請求項1又は2に記載のエッチング方法。
- 前記領域はシリコン及び/又はゲルマニウムから形成されている、請求項1又は2に記載のエッチング方法。
- a)基板の表面上に膜を形成する工程であり、該基板はマスク及び該マスクがその上に設けられた領域を有し、該マスクは該領域を部分的に露出させる開口を提供し、該膜は前記領域の材料と同種の材料から形成される、該工程と、
b)前記領域をエッチングする工程と、
を含み、
前記領域はシリコン及び/又はゲルマニウムから形成されており、
前記膜は、アモルファスシリコンから形成される、エッチング方法。 - 前記領域は、低誘電率材料から形成されている、請求項1又は2に記載のエッチング方法。
- c)前記領域を部分的にエッチングする工程を更に含み、
前記膜は、前記c)において形成された側壁面上に形成され、
前記c)において前記領域に形成された開口の深さが、前記b)において増大される、
請求項1~7の何れか一項に記載のエッチング方法。 - a)基板の表面上に膜を形成する工程であり、該基板はマスク及び該マスクがその上に設けられた領域を有し、該マスクは該領域を部分的に露出させる開口を提供し、該膜は前記領域の材料と同種の材料から形成される、該工程と、
b)前記領域をエッチングする工程と、
を含み、
前記a)は、
第1のガスを基板に供給することにより前記基板上に前駆体層を形成する工程と、
第2のガスを前記前駆体層に供給すること又は前記前駆体層を活性化することにより前記前駆体層から前記膜を形成する工程と、
を含む、エッチング方法。 - 前記膜は、前記第2のガスから生成されたプラズマからの化学種を用いて形成される、請求項9に記載のエッチング方法。
- 前記膜は、CVDにより形成される、請求項1~8の何れか一項に記載のエッチング方法。
- 前記領域に10以上のアスペクト比を有する開口が形成される、請求項1~11の何れか一項に記載のエッチング方法。
- 前記マスクが提供する前記開口の幅は、100nm以下である、請求項1~12の何れか一項に記載のエッチング方法。
- a)成膜ガスを用いて、基板の表面上に膜を形成する工程であり、該基板はマスク及び該マスクがその上に設けられた領域を有し、該マスクは該領域を部分的に露出させる開口を提供し、該膜は前記領域の材料と同種の材料から形成される、該工程と、
b)前記領域をエッチングする工程と、
を含み、
膜を形成する前記工程と前記領域をエッチングする前記工程とが交互に繰り返される、エッチング方法。 - チャンバと、
前記チャンバ内にガスを供給するように構成されたガス供給部と、
前記ガス供給部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、
a)開口を提供するマスク及び該マスクがその上に設けられた領域を有する基板上に、成膜ガスを用いて該領域の材料と同種の材料の膜を形成するために前記チャンバ内に前記成膜ガスを供給するように前記ガス供給部を制御し、
b)前記領域をエッチングするために前記チャンバ内にガスを供給するように前記ガス供給部を制御し、
前記a)において、前記膜は、その厚さが前記基板内での該基板の上端からの深さに応じて減少するように形成される、
基板処理装置。 - 開口を提供するマスク及び該マスクがその上に設けられた領域を有する基板上に、成膜ガスを用いて該領域の材料と同種の材料の膜を形成するように構成された成膜装置と、
前記領域をエッチングするように構成された基板処理装置と、
を備え、
前記成膜装置は、前記成膜ガスを用いた前記膜の形成において、前記膜を、該膜の厚さが前記基板内での該基板の上端からの深さに応じて減少するように形成する、
基板処理システム。 - 開口を提供するマスク及び該マスクがその上に設けられた領域を有する基板上に、該領域の材料と同種の材料の膜を形成するように構成された成膜装置と、
前記領域をエッチングするように構成された基板処理装置と、
を備え、
前記成膜装置は、
第1のガスを基板に供給することにより前記基板上に前駆体層を形成し、
第2のガスを前記前駆体層に供給すること又は前記前駆体層を活性化することにより前記前駆体層から前記膜を形成する、
基板処理システム。 - 開口を提供するマスク及び該マスクがその上に設けられた領域を有する基板上に、成膜ガスを用いて該領域の材料と同種の材料の膜を形成するように構成された成膜装置と、
前記領域をエッチングするように構成された基板処理装置と、
を備え、
前記成膜装置と前記基板処理装置は、前記膜を形成することと前記領域をエッチングすることを交互に繰り返す、
基板処理システム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW110101577A TW202133251A (zh) | 2020-01-29 | 2021-01-15 | 蝕刻方法、基板處理裝置及基板處理系統 |
CN202110067048.4A CN113270315A (zh) | 2020-01-29 | 2021-01-19 | 蚀刻方法、基片处理装置和基片处理系统 |
KR1020210011640A KR20210097044A (ko) | 2020-01-29 | 2021-01-27 | 에칭 방법, 기판 처리 장치, 및 기판 처리 시스템 |
US17/160,780 US12112954B2 (en) | 2020-01-29 | 2021-01-28 | Etching method, substrate processing apparatus, and substrate processing system |
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JP2020012240 | 2020-01-29 | ||
JP2020012240 | 2020-01-29 |
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JP2021118347A JP2021118347A (ja) | 2021-08-10 |
JP2021118347A5 JP2021118347A5 (ja) | 2023-03-10 |
JP7557969B2 true JP7557969B2 (ja) | 2024-09-30 |
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JP6561093B2 (ja) * | 2017-07-24 | 2019-08-14 | 東京エレクトロン株式会社 | シリコン酸化膜を除去する方法 |
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