JP2021184419A - 基板処理装置及びパラメータ取得方法 - Google Patents
基板処理装置及びパラメータ取得方法 Download PDFInfo
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Abstract
Description
形成される。ガス拡散室42aは、本体部42内部に形成される。ガス導入口42bは、本体部42のうちのガス拡散室42aよりも上側に形成され、ガス拡散室42aに連通する。複数のガス流出口42cは、本体部42のうちのガス拡散室42aより上部天板43側に形成され、ガス拡散室42aに連通する。
25 静電チャック
31 直流電源
35 第1高周波電源
36 第2高周波電源
55 可変直流電源
70 ヒータ制御部
71 交流電源
72 スイッチ
75 ディジタルフィルタ
751 ディジタルフィルタ
752 ディジタルフィルタ
753 ディジタルフィルタ
76 制御部
77 算出部
78 比較制御部
253 ヒータ
253a ヒータ抵抗器
Claims (12)
- ヒータ抵抗器と、
前記ヒータ抵抗器に印加される電圧として検出されたディジタル電圧値である検出電圧、及び、前記ヒータ抵抗器と前記ヒータ抵抗器を流れる電流から算出される電圧としてディジタル電圧値に変換して検出された検出電流の少なくとも一方をフィルタリングするディジタルフィルタと、
少なくとも一方が前記ディジタルフィルタによってフィルタリングされた前記検出電圧及び前記検出電流を用いて、前記ヒータ抵抗器の温度を制御する制御部と、
を備える、
基板処理装置。 - 前記ディジタルフィルタは、前記フィルタリング後の前記検出電圧における、ノイズ電圧が存在しないと仮定した場合の前記検出電圧と前記ノイズ電圧との比率と、前記フィルタリング後の前記検出電流における、ノイズ電流が存在しないと仮定した場合の前記検出電流と前記ノイズ電流との比率とが近づくように、前記検出電圧及び前記検出電流の少なくとも一方をフィルタリングする、
請求項1に記載の基板処理装置。 - 前記ディジタルフィルタは、ノイズ電圧及びノイズ電流の少なくとも一方を減衰させるローパスフィルタである、
請求項1又は2に記載の基板処理装置。 - 前記ディジタルフィルタのフィルタリング特性は、パラメータ制御可能であり、
前記ディジタルフィルタのパラメータは、カットオフ周波数を含む、
請求項3に記載の基板処理装置。 - 前記ヒータ抵抗器は、交流電源から供給される電力を用いて加熱され、
前記制御部は、前記検出電圧の実効値と、前記検出電流の実効値とに基づいて前記ヒータ抵抗器の抵抗値を算出する、
請求項1〜4のいずれか1項に記載の基板処理装置。 - 前記ディジタルフィルタは、前記検出電圧をフィルタリングする第1のディジタルフィルタと、前記検出電流をフィルタリングする第2のディジタルフィルタとを含み、
前記第1のディジタルフィルタのパラメータと、前記第2のディジタルフィルタのパラメータとは、異なるパラメータである、
請求項1〜5のいずれか1項に記載の基板処理装置。 - 前記ヒータ抵抗器は、基板の載置台に設けられる、
請求項1〜6のいずれか1項に記載の基板処理装置。 - 前記ヒータ抵抗器は、載置台に含まれる静電チャックに埋め込まれる、
請求項7に記載の基板処理装置。 - 基板処理装置に用いられるヒータ抵抗器に発生したノイズ電圧及びノイズ電流を測定するステップと、
前記測定した前記ノイズ電圧及びノイズ電流を用いて、前記ヒータ抵抗器に印加される電圧として検出されるディジタル電圧値である検出電圧、及び、前記ヒータ抵抗器と前記ヒータ抵抗器を流れる電流から算出される電圧としてディジタル電圧値に変換して検出された検出電流の少なくとも一方をフィルタリングするディジタルフィルタのパラメータを取得するステップと、
を含む、
パラメータ取得方法。 - 前記取得するステップでは、フィルタリング後の前記検出電圧における、前記ノイズ電圧が存在しないと仮定した場合の前記検出電圧と前記ノイズ電圧との比率と、前記フィルタリング後の前記検出電流における、前記ノイズ電流が存在しないと仮定した場合の前記検出電流と前記ノイズ電流との比率とが近づくように、前記検出電圧及び前記検出電流の少なくとも一方をフィルタリングする前記ディジタルフィルタのパラメータを取得する、
請求項9に記載のパラメータ取得方法。 - 前記取得するステップでは、前記ノイズ電圧及び前記ノイズ電流の少なくとも一方を減衰させるローパスフィルタとして前記ディジタルフィルタを機能させるためのパラメータを取得する、
請求項9又は10に記載のパラメータ取得方法。 - 前記取得するステップでは、カットオフ周波数を前記ディジタルフィルタのパラメータとして取得する、
請求項11に記載のパラメータ取得方法。
Priority Applications (5)
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JP2020088967A JP7466377B2 (ja) | 2020-05-21 | 2020-05-21 | 基板処理装置 |
TW110116519A TW202147446A (zh) | 2020-05-21 | 2021-05-07 | 基板處理裝置及參數取得方法 |
KR1020210062805A KR20210144582A (ko) | 2020-05-21 | 2021-05-14 | 기판 처리 장치 및 파라미터 취득 방법 |
CN202110528835.4A CN113707529A (zh) | 2020-05-21 | 2021-05-14 | 基板处理装置和参数获取方法 |
US17/325,594 US20210366692A1 (en) | 2020-05-21 | 2021-05-20 | Substrate processing apparatus and parameter acquisition method |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10335340A (ja) * | 1997-05-30 | 1998-12-18 | Kokusai Electric Co Ltd | 半導体製造装置の温度制御装置 |
JP2017073247A (ja) * | 2015-10-06 | 2017-04-13 | 東京エレクトロン株式会社 | プラズマ処理装置のインピーダンス整合のための方法 |
JP2017228230A (ja) * | 2016-06-24 | 2017-12-28 | 東京エレクトロン株式会社 | 基板処理システムおよび温度制御方法 |
WO2019083045A1 (ja) * | 2017-10-27 | 2019-05-02 | 京セラ株式会社 | ヒータ及びヒータシステム |
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JP6971199B2 (ja) | 2018-05-31 | 2021-11-24 | 東京エレクトロン株式会社 | 基板処理方法および基板処理装置 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10335340A (ja) * | 1997-05-30 | 1998-12-18 | Kokusai Electric Co Ltd | 半導体製造装置の温度制御装置 |
JP2017073247A (ja) * | 2015-10-06 | 2017-04-13 | 東京エレクトロン株式会社 | プラズマ処理装置のインピーダンス整合のための方法 |
JP2017228230A (ja) * | 2016-06-24 | 2017-12-28 | 東京エレクトロン株式会社 | 基板処理システムおよび温度制御方法 |
WO2019083045A1 (ja) * | 2017-10-27 | 2019-05-02 | 京セラ株式会社 | ヒータ及びヒータシステム |
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TW202147446A (zh) | 2021-12-16 |
JP7466377B2 (ja) | 2024-04-12 |
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US20210366692A1 (en) | 2021-11-25 |
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