JP7238922B2 - 基板処理装置及び基板処理方法。 - Google Patents
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Description
投光部により前記供給路の一部を成す流路形成部に向かう光が形成された結果として前記流路形成部から光が発せられて、前記流路形成部から発せられた側方散乱光を受光部が受光して得られる信号に基づいて、前記流体の中の異物を検出可能な異物検出ユニットと、
を備える基板処理装置であって、
前記流路形成部、前記投光部及び前記受光部を格納する筐体と、
前記筐体の外部から前記流路形成部へ前記流体を供給する一の配管、前記流路形成部から前記流体を前記筐体の外側へ排出する他の配管が夫々接続されるように、当該流路形成部の前端面に設けられる前記流体の入口及び出口と、を備え、
前記投光部及び受光部は、前記流路形成部を基準として前記入口、前記出口が設けられる方向とは異なる方向に設けられている。
また、受光側についても投光側と同様に、移動機構によって稼働する反射板が設けられ、流路形成部14から発して当該反射板により反射される光を受光する受光部48については、この反射板の移動路とは別の位置に固定して置かれた構成としてもよい。
1 レジスト塗布装置
12 処理液供給管
2 異物検出ユニット
14 流路形成部
4A 投光部
4B 受光部
53 計数部
Claims (8)
- 基板に供給される流体が通流する供給路と、
投光部により前記供給路の一部を成す流路形成部に向かう光が形成された結果として前記流路形成部から光が発せられて、前記流路形成部から発せられた側方散乱光を受光部が受光して得られる信号に基づいて、前記流体の中の異物を検出可能な異物検出ユニットと、
を備える基板処理装置であって、
前記流路形成部、前記投光部及び前記受光部を格納する筐体と、
前記筐体の外部から前記流路形成部へ前記流体を供給する一の配管、前記流路形成部から前記流体を前記筐体の外側へ排出する他の配管が夫々接続されるように、当該流路形成部の前端面に設けられる前記流体の入口及び出口と、を備え、
前記投光部及び受光部は、前記流路形成部を基準として前記入口、前記出口が設けられる方向とは異なる方向に設けられている基板処理装置。 - 前記流路形成部における流体の流路は、通液方向の上流側に対して下流側を狭く、又は/かつ曲率を大きく設けられている部分を有する、請求項1記載の基板処理装置。
- 前記投光部からの光軸は、前記流路形成部における流体の流路に、当該流体の通液方向に対して垂直に入射すると共に、当該流路における通液方向の1つの領域のみを通過する方向に形成される請求項1または2記載の基板処理装置。
- 前記流路形成部は、前記入口を含む第1流路と、
前記第1流路に対して縦方向に離れて位置して前記出口を含む第3流路と、
前記第1流路と前記第3流路とを接続する第2流路と、を有し、
前記投光部からの光軸は、前記第1流路及び前記第3流路のうちのいずれか一方を通過し、他方を通過しない請求項3記載の基板処理装置。 - 前記異物検出ユニットは、
互いに間隔を空けて左右方向に列をなす複数の前記流路形成部と、
前記各流路形成部に前記投光部及び前記受光部が共用されるように、選択された当該流路形成部に対応する位置に当該投光部及び当該受光部を移動させる移動機構と、を有し、
前記側方散乱光を受光する位置における前記受光部と、前記一の配管及び前記他の配管と、は前記流路形成部を前後方向に挟んで対向する請求項4記載の基板処理装置。 - 前記第1流路及び前記第3流路のうちの一方の流路において前記光軸が通過する異物検出領域が形成されると共に、当該一方の流路は前記第2流路に対する接続位置よりも後方へ突出して凸レンズ形状をなす第1の凸部を形成し
前記受光部は当該異物検出領域から後方に向かう前記側方散乱光を受光し、
前記流路形成部の外側面には、前記凸部の後方側に凸レンズ形状をなす第2の凸部を備える請求項4または5に記載の基板処理装置。 - 前記流路形成部における流路については、前記通液方向下流側に向うにつれて幅が狭まる請求項4ないし6のいずれか一つに記載の基板処理装置。
- 基板に供給される流体が通流する供給路と、
投光部により前記供給路の一部を成す流路形成部に向かう光が形成された結果として前記流路形成部から光が発せられて、前記流路形成部から発せられた側方散乱光を受光部が受光して得られる信号に基づいて、前記流体の中の異物を検出可能な異物検出ユニットと、
を備える基板処理装置を用いた基板処理方法であって、
前記流路形成部、前記投光部及び前記受光部を格納する筐体の外部から前記流路形成部の前端面に設けられる前記流体の入口に接続される一の配管によって、当該流路形成部に前記流体を供給する工程と、
前記流路形成部の前端面に設けられる前記流体の出口に接続される他の配管によって前記流体を前記筐体の外側へ排出する工程と、
前記投光部及び受光部は、前記流路形成部を基準として前記入口、前記出口が設けられる方向とは異なる方向に設けられている基板処理方法。
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JPS6475032A (en) * | 1987-09-16 | 1989-03-20 | Hitachi Ltd | Apparatus for supplying treating liquid |
JPH03209713A (ja) * | 1990-01-11 | 1991-09-12 | Mitsubishi Electric Corp | レジスト塗布装置 |
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US9677988B1 (en) * | 2015-07-10 | 2017-06-13 | David E. Doggett | Integrating radiation collection and detection apparatus |
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