JP2023164633A - 基板処理装置および基板処理方法 - Google Patents
基板処理装置および基板処理方法 Download PDFInfo
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Abstract
Description
<基板処理システム1の概要>
第1実施形態に係る基板処理システム1について図1を参照し説明する。図1は、第1実施形態に係る基板処理システム1の概略構成を示す模式図である。
次に、受渡部14について図2を参照し説明する。図2は、受渡部14の概略構成を示す断面図である。
次に、洗浄処理ユニット16について図3を参照し説明する。図3は、洗浄処理ユニット16の概略構成を示す断面図である。洗浄処理ユニット16は、例えば、スピン洗浄によりウェハWを1枚ずつ洗浄する枚葉式の洗浄処理ユニット16として構成される。
次に、乾燥処理ユニット17の構成について図4を参照し説明する。図4は、乾燥処理ユニット17の構成を示す外観斜視図である。
次に、制御装置4の構成について図6を参照し説明する。図6は、第1実施形態に係る制御装置4の概略ブロック図である。
次に、第1実施形態に係る基板処理について図8を参照し説明する。図8は、第1実施形態における基板処理を説明するフローチャートである。
<基板処理システム1の概要>
次に、第2実施形態に係る基板処理システム1について図9を参照し説明する。図9は、第2実施形態に係る基板処理システム1の概略構成を示す模式図である。ここでは、第1実施形態に係る基板処理システム1と異なる箇所について説明し、第1実施形態と同じ構成についての説明は省略する。
制御装置4の制御部19には、図11に示すように、ロードセル39c、43からウェハWの重量に関する信号が入力される。また、制御部19には、赤外線センサ60からウェハWの温度に関する信号が入力される。図11は、第2実施形態に係る制御装置4の概略ブロック図である。
次に、第3実施形態に係る基板処理システム1について説明する。ここでは、第2実施形態に係る基板処理システム1に対して異なる箇所を中心に説明し、第2実施形態に係る基板処理システム1と同じ構成についての説明は省略する。第3実施形態に係る基板処理システム1は、赤外線センサ60の代わりに、撮像装置72を用いてIPA液体の液膜Lが形成されたウェハWの被覆状態を検出する。
乾燥処理ユニット17は、図13、14に示すように、レーザー照射部70と、スクリーン71と、撮像装置72とをさらに備える。図13は、第3実施形態に係る乾燥処理ユニット17の概略平面図である。図14は、図13のXIV-XIV断面における乾燥処理ユニット17の一部を示す概略断面図である。
制御装置4の制御部19には、図17に示すように、反射光を撮影して得られた画像データが撮像装置72から入力される。図17は、第3実施形態に係る制御装置4の概略ブロック図である。
第3実施形態に係る基板処理については、図12のフローチャートを用い、第2実施形態に係る基板処理とは異なる箇所について説明し、第2実施形態に係る基板処理と同じ処理についての説明は省略する。
次に、第4実施形態に係る基板処理システム1について説明する。ここでは、第2実施形態に係る基板処理システム1に対して異なる箇所を中心に説明し、第2実施形態に係る基板処理システム1と同じ構成についての説明は省略する。第4実施形態に係る基板処理システム1は、赤外線センサ60の代わりに、撮像装置72を用いてIPA液体の液膜Lが形成されたウェハWの被覆状態を検出する。
乾燥処理ユニット17は、図18、19に示すように、単色光照射部75と、撮像装置72とをさらに備える。図18は、第4実施形態に係る乾燥処理ユニット17の概略平面図である。図19は、図19のXIX-XIX断面における乾燥処理ユニット17の一部を示す概略断面図である。
第4実施形態に係る制御装置4の構成については、図17のブロック図を用い、第3実施形態に係る制御装置4とは異なる箇所について説明し、第3実施形態に係る制御装置4と同じ構成についての説明は省略する。
変形例に係る基板処理システム1は、液膜Lの液量が少なすぎる場合や、IPA液体の液膜Lに発生した不良部Waが大きい場合や、IPA液体の液膜Lに発生した不良部Waが多い場合などには、ウェハWにパターン倒れが発生していると判定し、そのウェハWを不良ウェハとして処理してもよい。例えば、変形例に係る基板処理システム1は、設定された各閾値と比較することで、パターン倒れの発生を判定する。これにより、パターン倒れが発生したウェハWに対してIPA液体の調整が行われることを抑制し、基板処理を効率よく行うことができる。
16 洗浄処理ユニット
17 乾燥処理ユニット(乾燥部)
19 制御部
19A 液量検出部
19B 被覆状態検出部(被覆検出部)
27 赤外線センサ
28c ロードセル
39c ロードセル
43 ロードセル
60 赤外線センサ
70 レーザー照射部
71 スクリーン
72 撮像装置
75 単色光照射部
Claims (9)
- 基板上に形成された液膜の液量を検出する液量検出部と、
前記液膜による前記基板の被覆状態を検出する被覆検出部と、
前記液膜を形成した前記基板に乾燥処理を行う乾燥部と、
前記基板の重量を計測するロードセルと
を備え、
前記乾燥部は、
前記基板を搬入出するための開口部を側面に形成した本体と、
前記本体の外部に設けられ、基板搬送装置から前記液膜を形成した前記基板を受け取り、かつ乾燥処理が終了した前記基板を前記基板搬送装置に受け渡すリフターと
を有し、
前記ロードセルは、前記リフターに設けられる
ことを特徴とする基板処理装置。 - 前記液量検出部は、
前記ロードセルにより計測した前記基板の重量に基づいて、前記基板に形成された液膜の液量を検出する
ことを特徴とする請求項1に記載の基板処理装置。 - 前記液量検出部は、
前記乾燥部に前記基板が搬送される前に前記液量を検出する
ことを特徴とする請求項1または2に記載の基板処理装置。 - 前記液量検出部は、
前記乾燥部前記基板が搬送された後に前記液量を検出する
ことを特徴とする請求項1または2に記載の基板処理装置。 - 前記液量検出部は、
前記液膜を形成した前記基板を前記乾燥部に搬入する前に、前記ロードセルにより前記基板の重量を計測し、
前記計測した重量と予め設定された第1所定重量との差を算出し、
前記基板に形成された液膜の液量を検出する
ことを特徴とする請求項1または2に記載の基板処理装置。 - 前記液量検出部は、
前記乾燥部の本体から搬出された前記基板の重量を前記ロードセルにより計測し、
前記計測した重量と予め設定された第2所定重量との差を算出し、
前記基板の乾燥状態を検出する
ことを特徴とする請求項1または2に記載の基板処理装置。 - 前記ロードセルは、
前記乾燥部の本体に搬入される前の前記液膜を形成した前記基板の重量と、前記乾燥部の本体から搬出された前記乾燥処理が終了した前記基板の重量とを計測し、
前記液量検出部は、
前記ロードセルにより計測した前記基板の重量に基づいて、前記基板に形成された液膜の液量または前記基板の乾燥状態を検出する
ことを特徴とする請求項1に記載の基板処理装置。 - 請求項1または2に記載の基板処理装置を使って行う基板処理方法であって、
乾燥処理前に基板の表面に液膜が形成された前記基板の重量を検出するステップと、
前記乾燥処理前の前記基板における前記液膜による被覆状態を検出するステップと、
前記液膜が形成された前記基板に前記乾燥処理を行う乾燥処理ステップと、
前記乾燥処理後の前記基板の重量を検出するステップと、
前記乾燥処理後の前記基板の表面状態を検出するステップと
を含むことを特徴とする基板処理方法。 - 請求項1または2に記載の基板処理装置を使って行う基板処理方法であって、
乾燥処理前に基板の表面に液膜が形成された前記基板の重量を検出するステップと、
前記液膜が形成された前記基板に前記乾燥処理を行う乾燥処理ステップと、
前記乾燥処理後の前記基板の重量を検出するステップと、
を含むことを特徴とする基板処理方法。
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