JP2008520095A - 基板のレーザ熱処理における差し迫った不具合の急速検出 - Google Patents
基板のレーザ熱処理における差し迫った不具合の急速検出 Download PDFInfo
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Abstract
【選択図】 図6
Description
Claims (14)
- 基板を熱処理する装置であって、
レーザ波長で光を発するレーザ放射ソースと、
前記ソースと前記基板との間に配置された、前記基板を熱処理するために前記ソースから光を受信するための光学システムであって、複数の光学要素を備えている光学システムと、
前記光学システムを中に保持するハウジングであって、前記レーザ光放射が所定のレベルで該ハウジングの中に維持され、また前記光学システムからの少なくとも1つの光学要素の劣化によって前記ハウジング内の前記光放射が前記所定のレベルを超えるハウジングと、
前記電気信号が所定の基準レベルを超えたか否かを検証して、過剰なレーザ光放射の検出時にコントロール信号を発生させることによって、前記ハウジング内の前記過剰なレーザ光放射を検出するための、前記ハウジング内に配置された光検出器と、
前記レーザ光放射ソースに電力を発生させるための電源と、
前記光検出器からの前記過剰なレーザ光放射信号に基づいて前記電源をコントロールするためのコントローラと、
を備える装置。 - 前記光学要素が光学レンズと、前記光学要素を相互に固定して取り付けるためのシーラントと、光学コーティングとを含む、請求項1に記載の装置。
- 前記光検出器が、前記ハウジングへの前記光放射を測定するためのフォトダイオードと、前記測定を、前記ハウジングへの前記光放射のベースラインレベルと関連した所定の値と比較するためのコンパレータとを含む、請求項1に記載の装置。
- 前記コントローラが、前記ハウジングにおける過剰な光放射の信号に基づいて前記電源を停止させるように構成された、請求項1に記載の装置。
- 前記レーザ波長がおよそダイオード発光波長である、請求項1に記載の装置。
- 前記ハウジング内の前記光検出器を前記光学システムに対して移動させる変換機構をさらに備える、請求項1に記載の装置。
- 基板を熱処理するシステムであって、
前記基板を熱処理するためにレーザ波長で光を発するレーザ放射ソースと、
前記ソースと前記基板との間に配置された、前記光学近位端で前記レーザ放射ソースから前記光を受信するための光学部品と、
前記ソースから発せられた前記レーザ光から隔離された前記ハウジング内の間隙に前記光学部品を保持するためのハウジングと、
前記光学近位端を前記レーザ放射ソースに固定して取り付けるためのシーラントであって、前記光学部品の劣化によって前記シーラントが劣化することによって、前記光学部品からの前記レーザ光が前記ハウジングにおける前記間隙に放射するシーラントと、
前記ハウジングにおける前記隔離された間隙内に配置された、前記光学部品から前記ハウジングに発せられた前記レーザ光を検出して、劣化信号を送るための光検出器と、
前記レーザ放射ソースに電力を発生させる電源と、
前記光検出器からの前記劣化信号に基づいて前記電源をコントロールするためのコントローラと、
を備えるシステム。 - 前記シーラントがUV硬化エポキシ樹脂である、請求項7に記載のシステム。
- インタフェースを有する光学部品を含むレーザ照射システムの動作を監視する方法であって、
前記光学部品のハウジング内の前記システムに含まれたレーザの波長の環境光のレベルを測定するステップと、
前記レベルを所定の閾値と比較するステップと、
前記レベルが前記所定の閾値を超える場合に、前記レーザへの電力を低下させるステップと、
を備える方法。 - 第1の方向に沿った短い寸法と、第2の方向に沿った長い寸法とを有するラインビームにおいて前記レーザから基板に光を投影するステップと、
前記第1の方向に沿って前記基板上に前記ラインビームを走査するステップと、
をさらに備える、請求項9に記載の方法。 - 基板を熱処理するシステムであって、
レーザ波長で光を発するレーザアレイを備えるレーザ放射ソースと、
基板サポートと、
前記ソースと前記基板サポートとの間に配置された、前記レーザ放射ソースによって発せられた前記光から前記基板サポートの基板平面にラインビームを形成する光学部品と、
前記ラインビームの長手方向軸を横断する高速軸に沿って前記基板サポートに対して前記ラインビームを移動させるための走査装置と、
前記光学部品を包含するハウジングと、
前記ハウジング内に配置された、環境光レベルを検知する光検出器と、
前記レーザ放射ソースに結合された電源と、
前記電源を統制し、かつ前記光検出器に応答的であり、閾値の環境レベルを上回る前記光検出器の出力増加時に前記電源を中断するためのコントローラと、
を備えるシステム。 - 前記光学部品が、前記高速軸に沿って光をコリメートするための、前記高速軸を横断する低速軸に沿って前記レーザアレイのそれぞれの列を覆うそれぞれの円筒形小型レンズを備える、請求項11に記載のシステム。
- 前記それぞれの円筒形小型レンズを前記レーザアレイの前記それぞれの列に固着させる接着材料をさらに備える、請求項12に記載のシステム。
- 前記低速軸に沿って前記円筒形小型レンズからの光の多くの内部反射を生成するように整列された均質化光パイプをさらに備える、請求項12に記載のシステム。
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US62752904P | 2004-11-12 | 2004-11-12 | |
US60/627,529 | 2004-11-12 | ||
US11/185,454 US7422988B2 (en) | 2004-11-12 | 2005-07-20 | Rapid detection of imminent failure in laser thermal processing of a substrate |
US11/185,454 | 2005-07-20 | ||
PCT/US2005/036780 WO2006055129A1 (en) | 2004-11-12 | 2005-10-12 | Rapid detection of amminent failure in laser thermal processing of a substrate |
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- 2005-10-12 WO PCT/US2005/036780 patent/WO2006055129A1/en active Application Filing
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WO2006055129A1 (en) | 2006-05-26 |
KR20070085635A (ko) | 2007-08-27 |
EP1824637A1 (en) | 2007-08-29 |
JP5225682B2 (ja) | 2013-07-03 |
US8586893B2 (en) | 2013-11-19 |
US20060102599A1 (en) | 2006-05-18 |
US7422988B2 (en) | 2008-09-09 |
US20080217306A1 (en) | 2008-09-11 |
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