JP2020201457A - レーザ修正方法、レーザ修正装置 - Google Patents
レーザ修正方法、レーザ修正装置 Download PDFInfo
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Abstract
Description
2:画像取得部,20:顕微鏡,21:白色光源,
22,29,31:ミラー,23,25:ハーフミラー,24:レンズ系,
26:撮像カメラ,27:画像処理部,28:表示装置,
3:レーザ照射部,30:レーザ光源,
32:レーザスキャナ,32A,32B:ガルバノミラー,
4:スペクトル分光カメラ,
40:レンズ,41:スリット,42:分光器,43:2次元センサ,
5:レーザ制御部,50:ニューラルネットワーク,50A:機械学習モデル
51:入力層,52:中間層,53:出力層,
100:多層膜基板,
S:ステージ,L:レーザ光
Claims (6)
- 多層膜基板の欠陥部に対してレーザ照射範囲を設定し、設定されたレーザ加工条件で前記欠陥部にレーザ光を照射して修正加工を行う修正工程を有し、
前記修正工程は、
前記欠陥部の分光スペクトルデータを取得して、前記分光スペクトルデータに基づいて、学習済みのニューラルネットワークによって前記欠陥部に照射するレーザ光の前記レーザ加工条件を設定し、
前記ニューラルネットワークは、多層膜構造データと多層膜構造毎の分光スペクトルデータと多層膜構造毎のレーザ加工実験データを含む実測データを学習データとして、機械学習されていることを特徴とするレーザ修正方法。 - 前記欠陥部の分光スペクトルデータは、欠陥部画像のピクセル毎に取得され、前記レーザ加工条件は、前記欠陥部画像におけるレーザ走査位置のピクセル毎に設定されることを特徴とする請求項1記載のレーザ修正方法。
- 前記多層膜基板は、2次元的な周期パターンを有しており、
前記修正工程に先立って行われる検査工程の結果から前記欠陥部の位置を特定し、
前記欠陥部を含む周期パターン画像を、前記欠陥部を含まない周期パターン画像と比較して、前記欠陥部の形状を特定し、
特定された前記欠陥部の形状が含まれるように前記レーザ照射範囲を設定することを特徴とする請求項1又は2記載のレーザ修正方法。 - 前記欠陥部の形状は、前記欠陥部を含む周期パターン画像に基づいて、学習済みの機械学習モデルによって特定され、当該機械学習モデルは、前記多層膜基板の周期パターン画像を学習データとして学習していることを特徴とする請求項3記載のレーザ修正方法。
- 多層膜基板の欠陥部に対してレーザ照射範囲を設定し、設定されたレーザ加工条件で前記欠陥部にレーザ光を照射して修正加工を行う修正加工部を備え、
前記修正加工部は、
前記欠陥部の分光スペクトルデータを取得して、前記分光スペクトルデータに基づいて、学習済みのニューラルネットワークによって前記欠陥部に照射するレーザ光の前記レーザ加工条件を設定するものであり、
前記ニューラルネットワークは、多層膜構造データと多層膜構造毎の分光スペクトルデータと多層膜構造毎のレーザ加工実験データを含む実測データを学習データとして、機械学習されていることを特徴とするレーザ修正装置。 - 前記修正加工部は、
顕微鏡を介して欠陥部画像を取得する画像取得部と、
前記顕微鏡を通して、前記欠陥部にレーザ光を照射するレーザ照射部と、
前記顕微鏡と同軸の白色落射光を前記多層膜基板に照射して、前記多層膜基板からの反射光を分光してピクセル毎の前記分光スペクトルデータを取得するスペクトル分光カメラと、
前記レーザ加工条件を制御するレーザ制御部とを備え、
前記レーザ制御部は、前記欠陥部画像におけるレーザ走査位置のピクセル毎に前記レーザ加工条件を設定することを特徴とする請求項5記載のレーザ修正装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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JP2019110482A JP7332144B2 (ja) | 2019-06-13 | 2019-06-13 | レーザ修正方法、レーザ修正装置 |
KR1020217040532A KR20220018974A (ko) | 2019-06-13 | 2020-05-27 | 레이저 수정 방법, 레이저 수정 장치 |
CN202080042211.5A CN113966527B (zh) | 2019-06-13 | 2020-05-27 | 激光修复方法、激光修复装置 |
PCT/JP2020/020967 WO2020250685A1 (ja) | 2019-06-13 | 2020-05-27 | レーザ修正方法、レーザ修正装置 |
US17/617,748 US20220238396A1 (en) | 2019-06-13 | 2020-05-27 | Laser repair method and laser repair device |
TW109119442A TWI821571B (zh) | 2019-06-13 | 2020-06-10 | 雷射修復方法、雷射修復裝置 |
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CN113966527B (zh) | 2024-06-25 |
WO2020250685A1 (ja) | 2020-12-17 |
CN113966527A (zh) | 2022-01-21 |
KR20220018974A (ko) | 2022-02-15 |
TW202109025A (zh) | 2021-03-01 |
US20220238396A1 (en) | 2022-07-28 |
JP7332144B2 (ja) | 2023-08-23 |
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