JP6062521B2 - 光学的検査システムの製造方法 - Google Patents
光学的検査システムの製造方法 Download PDFInfo
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- JP6062521B2 JP6062521B2 JP2015206996A JP2015206996A JP6062521B2 JP 6062521 B2 JP6062521 B2 JP 6062521B2 JP 2015206996 A JP2015206996 A JP 2015206996A JP 2015206996 A JP2015206996 A JP 2015206996A JP 6062521 B2 JP6062521 B2 JP 6062521B2
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- G01N2201/06113—Coherent sources; lasers
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Description
Claims (12)
- 1つまたは複数の試料を光学的に検査するためのシステムの製造方法であって、
試料ステージと、
前記試料ステージ上に置かれる1つまたは複数の試料の表面の一部を照明するために構成されたレーザシステムであって、
水分含量またはOH含有量を削減すべくアニールされ、かつ、選択された水素濃度を有する不活性化ガスに曝露することで不活性化されたNLO結晶と、
選択された波長の光を生成するように構成された少なくとも1つの光源であって、前記NLO結晶を通して光を伝達するようにさらに構成された光源と、
前記NLO結晶を収容するように構成された結晶ハウジングユニットと
を備える前記レーザシステムと、
前記試料の前記表面から反射される照明の少なくとも一部を受光するように構成された検出器と、
前記検出器に通信で結合されたコンピューティングシステムであって、前記コンピューティングシステムが前記検出器によって受光される照明の少なくとも一部に関する情報を取得するように構成され、前記検出器によって受光される照明の少なくとも一部に関する情報を活用して、前記試料の少なくとも1つの欠陥の存在または不在を決定するようにさらに構成される前記コンピューティングシステムと
を備えるシステムの製造方法。 - 前記レーザの前記NLO結晶が、前記NLO結晶のIRスペクトル、可視スペクトル、および/またはUVスペクトルで1つまたは複数の吸収バンドを示し、前記吸収バンドが、前記NLO結晶のOH結合の数の変化によって影響を受け、前記吸収バンドが選択されたレベルのまたは選択されたレベル以上の強度を有する、請求項1に記載のシステムの製造方法。
- 前記レーザが、約193〜266nmの範囲の1つまたは複数の波長で動作する、請求項1に記載のシステムの製造方法。
- 前記レーザシステムが、少なくとも1つのダイオード励起ソリッドステート(DPSS)ソースを有する少なくとも1つのレーザを備える、請求項1に記載のシステムの製造方法。
- 前記レーザシステムが、少なくとも1つのファイバIRソースを有する少なくとも1つのレーザを備える、請求項1に記載のシステムの製造方法。
- 前記システムが暗視野検査用に構成される、請求項1に記載のシステムの製造方法。
- 前記システムが明視野検査用に構成される、請求項1に記載のシステムの製造方法。
- 前記試料がパターンなしウェハを備える、請求項1に記載のシステムの製造方法。
- 前記試料がパターン付きウェハを備える、請求項1に記載のシステムの製造方法。
- 前記試料がレチクルまたはフォトマスクの内の少なくとも1つを備える、請求項1に記載のシステムの製造方法。
- 前記システムが、
前記レーザシステムから前記試料の表面に照明路に沿って照明を導くように構成された1つまたは複数の照明レンズ
をさらに含む、請求項1に記載のシステムの製造方法。 - 前記システムが、
前記試料の前記表面から反射される照明を、検出経路に沿って前記検出器へ導くように構成された1つまたは複数の集光レンズ
をさらに含む、請求項1に記載のシステムの製造方法。
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US13/488,635 US9250178B2 (en) | 2011-10-07 | 2012-06-05 | Passivation of nonlinear optical crystals |
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JP2016241892A Active JP6415523B2 (ja) | 2011-10-07 | 2016-12-14 | 光学的検査システム |
JP2018074155A Pending JP2018132773A (ja) | 2011-10-07 | 2018-04-06 | レーザシステム、非線形光学結晶およびその不活性化方法 |
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