JP7399012B2 - 基板処理システム、基板処理方法、および制御装置 - Google Patents
基板処理システム、基板処理方法、および制御装置 Download PDFInfo
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Description
図1は、一実施形態に係る基板処理システムを概略的に示す模式図である。
次に、処理モジュール(PM)の構造例について説明する。
図2は、処理モジュール(PM)の一例を示す断面図であり、成膜処理を行うものを例示している。図2は処理モジュール(PM)1を示しているが、処理モジュール(PM)2~4の基本的な構造は処理モジュール(PM)1と同様である。
次に、制御装置20について説明する。
図3は制御装置20の主要部を示すブロック図である。図3に示すように、制御装置20は、主制御部51と、表示部52と、設定部53と、記憶部54と、出力部55とを有する。
次に、オフセット時間について詳細に説明する。
基板処理システム100においては、上述したように、処理モジュール(PM)1~4で複数のウエハWが繰り返し処理されるが、ウエハWの処理枚数が増加していくに従って、チャンバ31内の状態が変化する。このため、プロセスレシピに設定されているプロセスパラメータを初期の状態のままにしていると、所望の処理が行えない場合が生じる。特に、処理モジュール(PM)1~4での処理が成膜処理、例えばCVD成膜処理の際には、ウエハWの処理枚数が増加すると、チャンバ31の内壁に付着する反応生成物が増加する。このため、ウエハWの処理枚数が増加した際にはチャンバ31内の状態が初期の状態と大きく変化している場合があり、所望の処理が行い難くなる。
以上、実施形態について説明したが、今回開示された実施形態は、全ての点で例示であって制限的なものではないと考えられるべきである。上記の実施形態は、添付の特許請求の範囲およびその主旨を逸脱することなく、様々な形態で省略、置換、変更されてもよい。
5;真空搬送室
6;ロードロック室
8;大気搬送室 12;真空搬送装置
16;大気搬送装置
20;制御装置
31;チャンバ
32;載置台
33;ヒータ
35;排気機構
38;ガスシャワーヘッド
41;ガス供給部
43;高周波電源
100;基板処理システム
F;フープ
G,G1,G2;ゲートバルブ
W;ウエハ(基板)
Claims (17)
- 複数の基板に対して処理を行う基板処理システムであって、
基板に対して処理を行う処理モジュールと、
前記処理モジュールに対し複数の基板を繰り返し搬送する搬送機構と、
前記処理モジュールにおける基板の処理を制御する制御装置とを有し、
前記制御装置は、前記処理を実行するための制御プログラムであるプロセスレシピに基づいて、前記処理を実行させるものであり、前記プロセスレシピのステップのステップ時間に対し、前記処理モジュールで処理した基板枚数に対応する関数、または処理した基板枚数に相当するパラメータに対応する関数であるオフセット時間を設定する機能を有し、
前記関数は2次関数である、基板処理システム。 - 前記処理モジュールは、基板に対し成膜処理を行うものであり、前記処理した基板枚数に相当するパラメータは、累積膜厚である、請求項1に記載の基板処理システム。
- 前記制御装置は、処理に必要な情報が表示される表示部を有し、前記表示部には前記オフセット時間を設定するオフセット時間設定画面が表示され、前記オフセット時間設定画面で前記オフセット時間が設定される、請求項1または請求項2に記載の基板処理システム。
- 前記オフセット時間設定画面は、前記処理モジュールで処理した基板枚数ごと、または前記パラメータごとに、複数段階の前記オフセット時間を設定可能なテーブルを有する、請求項3に記載の基板処理システム。
- 前記制御装置は、前記プロセスレシピを複数有し、前記プロセスレシピのそれぞれに対して前記テーブルを有し、前記オフセット時間設定画面は、複数の前記プロセスレシピに対応した前記テーブルのいずれかを表示可能である、請求項4に記載の基板処理システム。
- 前記処理モジュールを複数有し、複数の前記プロセスレシピは、複数の前記処理モジュールのいずれかに対応する、請求項5に記載の基板処理システム。
- 前記制御装置は、前記オフセット時間の最小値、および/または最大値をリミッタとして設定する、請求項1から請求項6のいずれか一項に記載の基板処理システム。
- 処理を実行するための制御プログラムであるプロセスレシピに基づいて、処理モジュールにより複数の基板に対して処理を行う基板処理方法であって、
前記プロセスレシピのステップのステップ時間に対し、前記処理モジュールで処理した基板枚数に対応する関数、または処理した基板枚数に相当するパラメータに対応する関数であるオフセット時間を設定することと、
前記オフセット時間が設定されたプロセスレシピに基づいて前記処理モジュールに複数の基板を繰り返し搬送して基板に対して処理を行うことと、
を有し、
前記関数は2次関数である、基板処理方法。 - 前記処理モジュールは、基板に対し成膜処理を行うものであり、前記処理した基板枚数に相当するパラメータは、累積膜厚である、請求項8に記載の基板処理方法。
- 処理に必要な情報が表示される表示部に前記オフセット時間を設定するオフセット時間設定画面が表示され、前記オフセット時間設定画面で前記オフセット時間を設定する、請求項8または請求項9に記載の基板処理方法。
- 前記オフセット時間設定画面は、前記処理モジュールで処理した基板枚数ごと、または前記パラメータごとに、複数段階の前記オフセット時間を設定可能なテーブルを有する、請求項10に記載の基板処理方法。
- 前記プロセスレシピが複数存在し、前記プロセスレシピのそれぞれに対して前記テーブルを有し、前記オフセット時間設定画面は、複数の前記プロセスレシピに対応した前記テーブルのいずれかを表示可能である、請求項11に記載の基板処理方法。
- 前記処理モジュールを複数有し、複数の前記プロセスレシピは、複数の前記処理モジュールのいずれかに対応する、請求項12に記載の基板処理方法。
- 前記オフセット時間の最小値、および/または最大値をリミッタとして設定する、請求項8から請求項13のいずれか一項に記載の基板処理方法。
- 基板に対して処理を行う処理モジュールと、前記処理モジュールに対し複数の基板を繰り返し搬送する搬送機構とを有し、複数の基板に対して処理を行う基板処理システムの制御を行う制御装置であって、
前記処理を実行するための制御プログラムであるプロセスレシピに基づいて、前記処理を実行させるものであり、前記プロセスレシピのステップのステップ時間に対し、前記処理モジュールで処理した基板枚数に対応する関数、または処理した基板枚数に相当するパラメータに対応する関数であるオフセット時間を設定する機能を有し、
前記関数は2次関数である、制御装置。 - 処理に必要な情報が表示される表示部を有し、前記表示部には前記オフセット時間を設定するオフセット時間設定画面が表示され、前記オフセット時間設定画面で前記オフセット時間が設定される、請求項15に記載の制御装置。
- 前記オフセット時間設定画面は、前記処理モジュールで処理した基板枚数ごと、または前記パラメータごとに、複数段階の前記オフセット時間を設定可能なテーブルを有する、請求項16に記載の制御装置。
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