JP2005260238A - 近赤外線分光器を利用したリソグラフィ工程用組成物の実時間制御システム及びその制御方法 - Google Patents
近赤外線分光器を利用したリソグラフィ工程用組成物の実時間制御システム及びその制御方法 Download PDFInfo
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Abstract
【課題】近赤外線分光器を利用したリソグラフィ工程用組成物の実時間制御システム及びその制御方法を提供する。
【解決手段】リソグラフィ工程に使用される組成物を収容するタンク10内の組成物を引き出した後、フローセル70を通じてさらに組成物を収容するタンク10に移送する組成物移送装置と、フローセル70を通過する組成物の吸光度を測定し、測定された吸光度を用いて組成物の各成分濃度を計算する組成物分析装置と、測定された一つの成分の濃度が所定値以下である場合、不足な添加液をタンクに添加するための不足成分追加供給装置と、組成物分析装置で分析された組成物の成分によって不足成分追加供給装置を制御して組成物の各成分濃度を調節する制御部と、を含む。
【選択図】図1
Description
12 光ファイバー
15 タンク制御部
30 組成物伝達管
40 真空排出器
50 真空リザーバ
60 排出伝達タンク
70 フローセル
80 近赤外線分光器
90 出力部
100 制御部
130 添加タンク
140 添加タンク
150 添加液混合タンク
170 真空排出器
180 真空リザーバ
190 排出伝達タンク
Claims (11)
- リソグラフィ工程に使用される組成物を収容するタンク内の組成物を引き出した後、フローセルを通じてさらに前記組成物を収容するタンクに移送する組成物移送装置と、
前記フローセルを通過する組成物の吸光度を測定し、測定された吸光度を用いて組成物の各成分濃度を計算する組成物分析装置と、
前記測定された一つの成分の濃度が所定値以下である場合、不足な添加液を前記タンクに添加するための不足成分追加供給装置と、
前記組成物分析装置で分析された組成物の成分によって、前記不足成分追加供給装置を制御して組成物の各成分濃度を調節する制御部と、
を含むリソグラフィ工程用組成物の実時間制御システム。 - 前記組成物移送装置は、前記タンクに設置され、このタンク内の組成物を引き出すための第1の自動バルブと、
前記第1の自動バルブを通じて前記タンクから引き出された組成物を収容し、収容された組成物をフローセルに供給するための組成物伝達管と、
前記組成物伝達管に真空を印加するための真空リザーバと、
を含む請求項1記載のリソグラフィ工程用組成物の実時間制御システム。 - 前記真空リザーバには真空が印加されるか不活性ガスが供給され、前記真空リザーバに真空が印加される場合には、前記タンクから前記組成物伝達管に分析しようとする組成物が供給され、前記真空リザーバに不活性ガスが供給される場合には、供給される不活性ガスの圧力により前記組成物伝達管から前記フローセルに分析しようとする組成物が移送される請求項2記載のリソグラフィ工程用組成物の実時間制御システム。
- 前記組成物移送装置は、前記第2の自動バルブの制御によって空気の注入を受け、注入された空気を排気するにことよって前記真空リザーバに真空を印加する真空排出器をさらに含む請求項2記載のリソグラフィ工程用組成物の実時間制御システム。
- 前記組成物移送装置は、真空リザーバに連結され、前記組成物伝達管に過度な量の組成物が流入される場合、前記組成物伝達管の収容量を超過する組成物を収容するための排出伝達タンクをさらに含む請求項2記載のリソグラフィ工程用組成物の実時間制御システム。
- 前記組成物分析装置は、分析される組成物が移動するフローセルと、
前記移動する組成物に測定光を走査するための光ファイバーと、
前記組成物の吸光度を測定するための近赤外線分光器と、
を含む請求項1記載のリソグラフィ工程用組成物の実時間制御システム。 - 前記不足成分追加供給装置は、外部から流入された組成物成分を一時的に収容し、収容された組成物成分を前記タンクに供給する一つ以上の添加タンクと、
前記一つ以上の添加タンクに真空を印加するための真空リザーバと、
を含む請求項1記載のリソグラフィ工程用組成物の実時間制御システム。 - 前記不足成分追加供給装置は、前記添加タンク内の成分を混合するための混合器と、
前記混合器で混合された添加液を収容するための添加液混合タンクと、
をさらに含む請求項7記載のリソグラフィ工程用組成物の実時間制御システム。 - リソグラフィ工程で使用されているタンク内の組成物を減圧状態の組成物伝達管に移送する工程と、
前記組成物伝達管に不活性ガスを供給し、組成物伝達管内の組成物をフローセルに供給する工程と、
前記組成物がフローセル内部を流れる間、近赤外線分光器を用いて組成物の各成分濃度を測定する工程と、
前記フローセルに供給された組成物をさらに前記タンクに移送する工程と、
前記組成物の不足成分を添加タンクに移送する工程と、
前記添加タンク内の不足成分を前記リソグラフィ工程に使用されているタンクに移送する工程と、
を含むリソグラフィ工程用組成物の実時間制御方法。 - 前記不足成分は一つ以上であり、前記二つ以上の不足成分を混合する工程をさらに含む請求項9記載のリソグラフィ工程用組成物の実時間制御方法。
- 前記組成物の各成分濃度および前記組成物の履歴を出力部を通じて出力する工程をさらに含む請求項9記載のリソグラフィ工程用組成物の実時間制御方法。
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JP7491126B2 (ja) | 2020-07-29 | 2024-05-28 | 東京エレクトロン株式会社 | 基板処理装置、及び基板処理方法。 |
Also Published As
Publication number | Publication date |
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JP4775937B2 (ja) | 2011-09-21 |
CN1667514A (zh) | 2005-09-14 |
KR20050091288A (ko) | 2005-09-15 |
DE602005014302D1 (de) | 2009-06-18 |
EP1577662A3 (en) | 2006-10-11 |
TWI346972B (en) | 2011-08-11 |
US7307259B2 (en) | 2007-12-11 |
EP1577662B1 (en) | 2009-05-06 |
US20050202564A1 (en) | 2005-09-15 |
EP1577662A2 (en) | 2005-09-21 |
KR100909184B1 (ko) | 2009-07-23 |
CN100510969C (zh) | 2009-07-08 |
TW200531152A (en) | 2005-09-16 |
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