JP2008520096A - レーザベースアニーリングシステムにおける高温測定用の多重バンドパスフィルタリング - Google Patents
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Abstract
【選択図】 図6
Description
Claims (20)
- レーザ波長で発光するレーザ放射ソースと、
高温計波長での放射を通過させずに前記レーザ波長での放射を反射するようにチューニングされた反射表面と、
前記反射表面と、熱処理される基板との間に配置された光学部品と、
前記光学部品の反対側の前記反射表面の一方の側に位置決めされた高温計であって、前記高温計波長に感応的である高温計であって、前記光学部品が熱処理される前記基板の領域を前記高温計上にイメージングする高温計と、
前記レーザ放射ソースと前記反射表面との間に配置された、前記高温計波長を含む前記レーザ放射ソースによって発光された放射の一部をブロックするための第1の光学フィルタと、
を備える熱処理システム。 - 前記高温計が、光検出器と、前記高温計波長を通過させるが前記レーザ波長は通過させない第2の光学フィルタとを含む、請求項1に記載のシステム。
- 前記レーザ放射ソースがレーザエミッタのアレイを備えており、前記第1の光学フィルタが、前記アレイに対して角度が付けられることによって前記エミッタのうちの隣接するもの同士の間のゾーンに前記高温計波長の光を反射させるための反射表面を備える、請求項1に記載のシステム。
- 前記光学部品が前記レーザ波長の放射のラインビームを前記基板に投影し、前記システムはさらに、前記ラインビームを横断する高速軸を有するラインビーム走査装置を備える、請求項1に記載のシステム。
- レーザ波長で発光するレーザ放射ソースと、
前記レーザ波長と高温計波長のうちの一方での放射を反射して、前記レーザおよび高温計波長のうちのもう一方を通過させるようにチューニングされたフィルタリング表面と、
前記フィルタリング表面と、熱処理される基板との間に配置された、レーザ放射を前記基板上に投影するための光学部品と、
前記フィルタリング表面に対して位置決めされ、前記高温計波長で前記基板から発光された放射を受け取るための高温計と、
前記レーザ放射ソースと前記フィルタリング表面との間に配置された、前記高温計波長を含む前記レーザ放射ソースによって発光された放射の一部をブロックするための第1の光学フィルタと、
を備える熱処理システム。 - レーザソースの出力をフィルタリングして、高温計波長での放射を抑制するステップと、
前記フィルタリング済み出力を熱処理される基板に向けるステップと、
前記高温計波長での放射を検出して前記基板の温度を監視するステップと、
を備える熱処理方法。 - 前記向けるステップが、前記フィルタリング済み出力を第1の方向に1セットの光学部品を介して通過させて前記基板上にラインビームを作成する工程と、前記高温計波長での前記放射を反対方向に前記1セットの光学部品を介して通過させる工程と、を含む、請求項6に記載の方法。
- 前記向けるステップがさらに、前記高温計波長での前記放射を、前記レーザソースのレーザ波長での放射から分離する工程を含む、請求項7に記載の方法。
- 基板を熱処理するための熱処理システムであって、
レーザ波長でのコヒーレント放射を照射する発光ダイオードを含むレーザ放射ソースと、
前記コヒーレント放射を通過させ、かつ温度測定波長での放射をブロックする第1の光学フィルタと、
前記基板の熱特性を測定するように構成された光学検出器と、
前記基板と前記光学検出器との間に配置された、前記レーザ波長での放射をブロックし、かつ前記温度測定波長での放射を通過させる第2の光学フィルタと、
を備えるシステム。 - 第1の方向に前記コヒーレント放射のラインビームを前記基板上に投影し、かつ反対の第2の方向に熱放射を前記基板から前記光学検出器に対して前記第2の光学フィルタを介して向ける共通の光学部品をさらに備える、請求項9に記載のシステム。
- 前記第1および第2の光学フィルタが、少なくとも10の、前記レーザおよび温度測定波長間の吸収比を有する、請求項9に記載のシステム。
- 前記第1のフィルタが、前記コヒーレント放射の入射ビームに対してある角度で傾斜された法線を有する光学表面を有する、請求項9に記載のシステム。
- 前記角度が、前記温度測定波長の光を、前記発光ダイオードのそれぞれの間のゾーンに反射させるように選択される、請求項12に記載のシステム。
- 前記スタックの発光面における複数のバー軸に沿って配列された複数のダイオードレーザを備えるレーザバースタックと、
前記スタックに固着され、かつ前記バー軸のそれぞれに沿って延びる複数の円筒形レンズと、
前記バー軸間の近接部分における前記スタックに向けて非透過光を反射するように選択されたある角度で前記発光面に対して傾斜された平面に配列されたフィルタと、
を備える光学ソース。 - 前記レーザバースタックを収容するハウジングと、
前記発光面に対して前記角度で傾斜された表面を有し、かつ前記ハウジングをシールするウィンドウと、
をさらに備え、
前記フィルタが前記表面に接着された干渉フィルタである、請求項14に記載のソース。 - レーザ波長で発光するレーザ放射ソースと、
前記反射表面と基板サポートとの間に配置された、処理する基板を保持することができるビーム投影光学部品と、
高温計波長に応答的な高温計と、
前記レーザ放射ソースと前記ビーム投影光学部品との間にある、前記レーザ波長を含む第1の波長範囲の光の第1の光学経路と、前記ビーム投影光学部品と前記高温計との間にある、前記高温計波長を含む第2の波長範囲の光の第2の光学経路とを有する波長応答光学要素と、
を備える熱処理システム。 - 前記レーザ放射ソースと前記波長応答光学要素との間の高温計波長ブロックフィルタをさらに備える、請求項16に記載のシステム。
- 前記高温計が光検出器およびレーザ波長ブロックフィルタを含む、請求項17に記載のシステム。
- 前記レーザ放射ソースがレーザエミッタのアレイを備えており、前記高温計波長ブロックフィルタが、前記アレイに対して角度を付けられることによって前記エミッタの隣接するもの同士の間のゾーンに前記高温計波長の光を反射させる反射表面を備える、請求項17に記載のシステム。
- 前記ビーム投影光学部品が前記レーザ波長の放射のラインビームを前記基板サポートにわたる基板平面に投影し、前記システムがさらに、前記ラインビームを横断する高速軸を有するラインビーム走査装置を備える、請求項19に記載のシステム。
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US11/195,380 US7438468B2 (en) | 2004-11-12 | 2005-08-02 | Multiple band pass filtering for pyrometry in laser based annealing systems |
US11/195,380 | 2005-08-02 | ||
PCT/US2005/036796 WO2006055130A2 (en) | 2004-11-12 | 2005-10-12 | Multiple band pass filtering for pyrometry in laser based annealing systems |
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EP1831658A2 (en) | 2007-09-12 |
US7438468B2 (en) | 2008-10-21 |
US20090084986A1 (en) | 2009-04-02 |
EP1831658B1 (en) | 2016-08-03 |
WO2006055130A2 (en) | 2006-05-26 |
WO2006055130A3 (en) | 2006-07-13 |
CN101065649A (zh) | 2007-10-31 |
KR20070085742A (ko) | 2007-08-27 |
US7717617B2 (en) | 2010-05-18 |
US20060102607A1 (en) | 2006-05-18 |
KR101226634B1 (ko) | 2013-01-25 |
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CN101065649B (zh) | 2012-11-28 |
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