JP7134033B2 - 基板状態判定装置、基板処理装置、モデル作成装置及び基板状態判定方法 - Google Patents
基板状態判定装置、基板処理装置、モデル作成装置及び基板状態判定方法 Download PDFInfo
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Description
(基板処理装置)
第1の実施形態の基板処理装置の構成例について説明する。図1は、第1の実施形態の基板処理装置の構成例を示す図である。図2は、図1の基板処理装置の斜視図である。図3は、図1の基板処理装置の真空容器内の構成を示す平面図である。
基板状態判定装置200について説明する。図6は、基板状態判定装置200の構成例を示す図である。図7は、カメラ210の撮像範囲の一例を示す図である。
第1の実施形態の基板状態判定処理(基板状態判定方法)について、基板状態判定装置200により、回転テーブル2の表面に形成された凹部24内に載置されたウエハWの状態を判定する場合を例に挙げて説明する。図9は、第1の実施形態の基板状態判定処理の一例を示すフローチャートである。
第2の実施形態の基板処理装置の構成例について説明する。図10は、第2の実施形態の基板処理装置の構成例を示す図である。図10には、チャンバ1から天板11を除いた容器本体12を上方から見たときの図が示されており、回転テーブル2の表面に形成された凹部24上にウエハWが載置された状態が示されている。また、容器本体12の側壁には、穴17が形成され、穴17の内壁の側を覆う内側の窓18aと、穴17の外壁の側を覆う外側の窓18bが設けられている。
2 回転テーブル
7 ヒータユニット
24 凹部
31 反応ガスノズル
32 反応ガスノズル
100 基板処理装置
200 基板状態判定装置
210 カメラ
220 演算処理装置
222 記憶部
223 学習部
224 判定部
230 表示装置
W ウエハ
Claims (17)
- 載置台の表面に形成された凹部に載置された基板を撮像する撮像部と、
前記基板の画像に基板の状態を示す情報が付された教師データを用いて機械学習を実行することにより、前記基板の画像を入力、該基板の画像に対応する基板の状態に関する値を出力とする基板状態判定モデルを作成する学習部と、
前記学習部により作成された前記基板状態判定モデルを用いて、前記撮像部により撮像された前記基板の画像に対応する前記基板の状態を判定する判定部と、
を有し、
前記教師データは、
前記凹部内に前記基板が載置され、前記基板の端部の全体が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の中心部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の端部の一部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記基板が反っておらず、前記基板の全体が前記載置台の表面よりも下方にある画像と、
を含む、
基板状態判定装置。 - 前記学習部は、深層学習により前記機械学習を実行する、
請求項1に記載の基板状態判定装置。 - 前記教師データは、前記載置台の表面の輝度が異なる複数の画像、前記載置台に堆積した膜の膜厚が異なる複数の画像、前記載置台の温度が異なる複数の画像のうちの少なくともいずれかを含む、
請求項1又は2に記載の基板状態判定装置。 - 前記撮像部により撮像された前記基板の画像と、前記判定部で判定された前記基板の画像に対応する前記基板の状態とを関連付けて表示する表示部を有する、
請求項1乃至3のいずれか一項に記載の基板状態判定装置。 - 前記撮像部により撮像された前記基板の画像と、前記判定部で判定された前記基板の画像に対応する前記基板の状態とを関連付けて記憶する記憶部を有し、
前記学習部は、前記記憶部に記憶された、前記基板の状態と関連付けされた前記基板の画像を用いて機械学習を実行することにより、前記基板状態判定モデルを更新する、
請求項1乃至4のいずれか一項に記載の基板状態判定装置。 - 前記載置台は回転可能であり、
前記撮像部は、前記載置台が回転している状態で前記基板の画像を撮像する、
請求項1乃至5のいずれか一項に記載の基板状態判定装置。 - 前記撮像部は、側方から前記基板を撮像する、
請求項1乃至6のいずれか一項に記載の基板状態判定装置。 - 前記撮像部は、側方から前記基板の異なる端部を撮像する複数の撮像部を含む、
請求項1乃至6のいずれか一項に記載の基板状態判定装置。 - 処理容器と、
前記処理容器内に回転可能に収容され、表面に凹部を有する載置台と、
前記凹部に載置された基板の状態を判定する基板状態判定装置と、
を有し、
前記基板状態判定装置は、
前記載置台に載置された基板を撮像する撮像部と、
前記基板の画像に基板の状態を示す情報が付された教師データを用いて機械学習を実行することにより、前記基板の画像を入力、該基板の画像に対応する基板の状態に関する値を出力とする基板状態判定モデルを作成する学習部と、
前記学習部により作成された前記基板状態判定モデルを用いて、前記撮像部により撮像された前記基板の画像に対応する前記基板の状態を判定する判定部と、
を有し、
前記教師データは、
前記凹部内に前記基板が載置され、前記基板の端部の全体が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の中心部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の端部の一部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記基板が反っておらず、前記基板の全体が前記載置台の表面よりも下方にある画像と、
を含む、
基板処理装置。 - 前記載置台は、回転可能であり、回転方向に沿って複数の前記凹部を有する、
請求項9に記載の基板処理装置。 - 前記処理容器は、内部が観察可能な窓を有し、
前記撮像部は前記処理容器の外部に設けられ、前記窓から前記基板を撮像する、
請求項9又は10に記載の基板処理装置。 - 前記処理容器内にガスを供給するガスノズルを有し、
前記処理容器内で成膜処理を行う、
請求項9乃至11のいずれか一項に記載の基板処理装置。 - 前記凹部に載置される前記基板を加熱するヒータユニットを有し、
前記撮像部は、前記基板を前記ヒータユニットにより加熱した状態で前記基板を撮像する、
請求項9乃至12のいずれか一項に記載の基板処理装置。 - 載置台の表面に形成された凹部に載置された基板の画像に基板の状態を示す情報が付された教師データを用いて機械学習を実行することにより、前記基板の画像を入力、該基板の画像に対応する基板の状態に関する値を出力とする基板状態判定モデルを作成する学習部を有し、
前記教師データは、
前記凹部内に前記基板が載置され、前記基板の端部の全体が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の中心部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の端部の一部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記基板が反っておらず、前記基板の全体が前記載置台の表面よりも下方にある画像と、
を含む、
モデル作成装置。 - 載置台の表面に形成された凹部に載置された基板の画像に基板の状態を示す情報が付された教師データを用いて機械学習を実行することにより、前記基板の画像を入力、該基板の画像に対応する基板の状態に関する値を出力とする基板状態判定モデルを作成する学習工程と、
前記載置台に載置された基板を撮像する撮像工程と、
前記学習工程において作成された前記基板状態判定モデルを用いて、前記撮像工程で撮像された前記基板の画像に対応する前記基板の状態を判定する判定工程と、
を有し、
前記教師データは、
前記凹部内に前記基板が載置され、前記基板の端部の全体が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の中心部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記凹部内に前記基板が載置され、前記基板の端部の一部が上方に反り、前記載置台の表面よりも上方にある状態の画像と、
前記基板が反っておらず、前記基板の全体が前記載置台の表面よりも下方にある画像と、
を含む、
基板状態判定方法。 - 前記載置台は、回転可能であり、表面に回転方向に沿って複数の凹部を有し、
前記複数の凹部のすべてに基板を載置した後、夫々の前記凹部に対して前記撮像工程及び前記判定工程を実行する、
請求項15に記載の基板状態判定方法。 - 前記載置台は、回転可能であり、表面に回転方向に沿って複数の凹部を有し、
前記複数の凹部のうちのいずれかに基板を載置するごとに、前記基板が載置された前記凹部に対して前記撮像工程及び前記判定工程を実行する、
請求項15に記載の基板状態判定方法。
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