JP6920009B2 - 欠陥検出装置、欠陥検出方法および欠陥観察装置 - Google Patents
欠陥検出装置、欠陥検出方法および欠陥観察装置 Download PDFInfo
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- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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Description
Claims (13)
- 被検査物に光を照射する照射系と、
光の照射により発生した散乱光を結像する光学系と、
前記光学系の結像面に配置されたマイクロレンズアレイと、
前記光学系の結像面からずらした位置に配置され、前記マイクロレンズアレイを通過した光を撮像する撮像素子と、
欠陥種類ごとに、あるいは欠陥の方向ごとに生成した複数のマスク画像を記憶するマスク画像記憶部と、
前記撮像素子より得られた画像に、前記複数のマスク画像でマスク処理を実行し、欠陥検出処理を行う演算部と、
を有する欠陥検出装置。 - 請求項1に記載の欠陥検出装置において、
前記マスク画像は、半導体ウェーハからの散乱光と、欠陥からの散乱光を区別するものである欠陥検出装置。 - 請求項1に記載の欠陥検出装置において、
前記演算部は、複数のマスク画像でマスク処理を実行して得られた画像の内、高輝度の画像から欠陥位置を検出する欠陥検出装置。 - 請求項1に記載の欠陥検出装置において、
欠陥検出処理で選択されたマスク画像に基づいて、欠陥種類を分類する欠陥分類部を有する欠陥検出装置。 - 被検査物に光を照射する照射系と、光の照射により発生した散乱光を結像する光学系と、前記光学系の結像面に配置されたマイクロレンズアレイと、前記光学系の結像面からずらした位置に配置され、前記マイクロレンズアレイを通過した光を撮像する撮像素子とを用いる欠陥検出方法であって、
欠陥種類ごとに、あるいは欠陥の方向ごとに生成された複数のマスク画像を記憶するステップと、
前記撮像素子より得られた画像に、前記複数のマスク画像によりマスク処理を行うステップと、
マスク処理を行った画像により欠陥検出を行うステップと
を有する欠陥検出方法。 - 請求項5に記載の欠陥検出方法において、
前記マスク画像は、半導体ウェーハからの散乱光と、欠陥からの散乱光を区別するものである欠陥検出方法。 - 請求項5に記載の欠陥検出方法において、
前記欠陥検出を行うステップは、複数のマスク画像でマスク処理を実行して得られた画像の内、高輝度の画像から欠陥位置を検出する欠陥検出方法。 - 請求項5に記載の欠陥検出方法において、更に、
欠陥検出処理で選択されたマスク画像に基づいて欠陥種類を分類するステップを有する欠陥検出方法。 - SEMと光学顕微鏡と画像処理部とを備える欠陥観察装置であって、
前記光学顕微鏡は、試料に光を照射する照射系と、光の照射により発生した散乱光を結像する光学系と、前記光学系の結像面に配置したマイクロレンズアレイと、前記光学系の結像面からずらした位置に配置され、前記マイクロレンズアレイを通過した光を撮像する撮像素子とを備え、
前記画像処理部は、欠陥の種類ごとに、あるいは欠陥の方向ごとに生成した複数のマスク画像を記憶するマスク画像記憶部と、前記撮像素子で撮像した撮像画像を記憶する画像記憶部と、前記マスク画像と前記撮像画像を用いて試料の欠陥位置を算出する演算部を備える欠陥観察装置。 - 請求項9に記載の欠陥観察装置において、
前記マスク画像は、半導体ウェーハからの散乱光と、欠陥からの散乱光を区別するものである欠陥観察装置。 - 請求項9に記載の欠陥観察装置において、
前記演算部は、複数のマスク画像でマスク処理を実行して得られた画像の内、高輝度の画像から欠陥位置を算出する欠陥観察装置。 - 請求項9に記載の欠陥観察装置において、
欠陥位置を算出のために使用されたマスク画像により、SEMで得た二次電子像及び反射電子像の混合比を変更して観察画像を生成する欠陥観察装置。 - 請求項9に記載の欠陥観察装置において、更に、
欠陥検出処理で選択されたマスク画像に基づいて、欠陥種類を分類する欠陥分類部を備える欠陥観察装置。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/007297 WO2019167129A1 (ja) | 2018-02-27 | 2018-02-27 | 欠陥検出装置、欠陥検出方法および欠陥観察装置 |
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| JPWO2019167129A1 JPWO2019167129A1 (ja) | 2020-12-17 |
| JP6920009B2 true JP6920009B2 (ja) | 2021-08-18 |
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| JP (1) | JP6920009B2 (ja) |
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| CN112730334B (zh) * | 2020-12-23 | 2024-03-22 | 之江实验室 | 基于电偶极旋转散射光探测的纳米微粒识别装置和方法 |
| JP7654463B2 (ja) * | 2021-05-19 | 2025-04-01 | キヤノン株式会社 | 情報処理装置、情報処理方法、およびプログラム |
| WO2024053109A1 (ja) * | 2022-09-09 | 2024-03-14 | 日本電信電話株式会社 | 劣化検出モデル学習装置、劣化検出装置、及びプログラム |
| CN117058004B (zh) * | 2023-10-13 | 2024-03-08 | 埃克斯工业有限公司 | 晶圆的晶粒图像重构方法、电子设备及存储介质 |
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| JPS5780546A (en) | 1980-11-07 | 1982-05-20 | Nippon Kogaku Kk <Nikon> | Detecting device for foreign substance |
| US5659390A (en) * | 1995-02-09 | 1997-08-19 | Inspex, Inc. | Method and apparatus for detecting particles on a surface of a semiconductor wafer having repetitive patterns |
| US6686602B2 (en) * | 2002-01-15 | 2004-02-03 | Applied Materials, Inc. | Patterned wafer inspection using spatial filtering |
| WO2006039486A2 (en) | 2004-10-01 | 2006-04-13 | The Board Of Trustees Of The Leland Stanford Junior University | Imaging arrangements and methods therefor |
| JP5216752B2 (ja) | 2009-11-18 | 2013-06-19 | 株式会社日立ハイテクノロジーズ | 欠陥検出方法及び欠陥検出装置並びにこれを備えた欠陥観察装置 |
| JP5416600B2 (ja) * | 2010-01-22 | 2014-02-12 | 株式会社日立ハイテクノロジーズ | 欠陥検査装置およびその方法 |
| JP5416025B2 (ja) * | 2010-04-22 | 2014-02-12 | 株式会社神戸製鋼所 | 表面形状測定装置および半導体ウェハ検査装置 |
| JP5629782B2 (ja) * | 2010-12-27 | 2014-11-26 | 株式会社日立ハイテクノロジーズ | 検査装置 |
| JP2012185149A (ja) | 2011-02-17 | 2012-09-27 | Ricoh Co Ltd | 欠陥検査装置及び欠陥検査処理方法 |
| JP5882072B2 (ja) * | 2012-02-06 | 2016-03-09 | 株式会社日立ハイテクノロジーズ | 欠陥観察方法及びその装置 |
| JP2015059776A (ja) * | 2013-09-18 | 2015-03-30 | 株式会社日立ハイテクノロジーズ | 欠陥観察装置およびその方法 |
| JP6401648B2 (ja) | 2015-03-31 | 2018-10-10 | 株式会社Screenホールディングス | 欠陥分類装置および欠陥分類方法 |
| US10018560B2 (en) * | 2016-02-02 | 2018-07-10 | Kla-Tencor Corporation | System and method for hyperspectral imaging metrology |
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2018
- 2018-02-27 KR KR1020207018676A patent/KR102345254B1/ko active Active
- 2018-02-27 JP JP2020503132A patent/JP6920009B2/ja active Active
- 2018-02-27 WO PCT/JP2018/007297 patent/WO2019167129A1/ja not_active Ceased
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| US20210109035A1 (en) | 2021-04-15 |
| KR102345254B1 (ko) | 2021-12-31 |
| US11802841B2 (en) | 2023-10-31 |
| WO2019167129A1 (ja) | 2019-09-06 |
| KR20200092372A (ko) | 2020-08-03 |
| JPWO2019167129A1 (ja) | 2020-12-17 |
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