JP7556006B2 - 光ルミネセンス分光法を用いた有機発光ダイオード製造のための計測学 - Google Patents
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Description
Claims (15)
- モニタリング装置であって、
可視スペクトル又は近可視スペクトルからの光を含む励起光を生成するように構成された光源、
基板上に形成された光ルミネセンス(PL)層上に前記励起光を導くように構成された光学アセンブリであって、前記励起光の第1の部分を前記PL層上の第1の測定箇所に導くように構成された第1の光ファイバと、前記励起光の第2の部分を前記PL層上の第2の測定箇所に導くように構成された第2の光ファイバとを含む、光学アセンブリ、
前記励起光が前記PL層と相互作用したことに応じて前記PL層によって生成されたPL放射を一定範囲の時間受け取り、受け取った前記PL放射から所定の波長又は波長帯域を選択的に透過させ、透過させた前記波長又は波長帯域内の各時点における前記PL放射の光子数に基づいて信号を生成するように構成された検出器、及び
前記検出器に接続された計算デバイスであって、
前記検出器から前記信号を受信し、
前記PL放射に関連付けられた前記一定範囲の時間に亘る過渡光ルミネセンス強度情報に基づいて前記PL層のドーパント濃度を特定し、ここで前記過渡光ルミネセンス強度情報は前記PL放射の経時的なPL強度の減衰を含むように構成された計算デバイス
を備える、モニタリング装置。 - 前記PL放射が、前記可視スペクトル内の波長を有する光を含む、請求項1に記載のモニタリング装置。
- 前記光学アセンブリが、
前記励起光を前記PL層に導くように構成された対物レンズ、及び
前記励起光を前記対物レンズに導き、前記PL放射を伝達するように構成されたダイクロイックミラーを含む、請求項1に記載のモニタリング装置。 - 前記検出器が、前記光源に同期して、前記光源が前記励起光を生成するタイミングでPL放射の単一光子を検出するように構成されている、請求項1に記載のモニタリング装置。
- 前記光学アセンブリが、前記励起光の前記第1の部分を前記第1の光ファイバに導き、且つ前記励起光の前記第2の部分を前記第2の光ファイバに導くように構成された光学スプリッタを更に含む、請求項1に記載のモニタリング装置。
- 前記検出器が、複数のPL強度値を種々の時点で生成するように構成された検出器アレイを含み、
前記計算デバイスが、各時点での前記複数のPL強度値に基づいてPL強度曲線を構築し、且つ前記PL強度曲線を較正曲線と比較するように構成されている、請求項1に記載のモニタリング装置。 - 前記検出器が、線形アレイを含み、前記線形アレイが、前記基板の一方の側から前記基板の他方の側へ延在する前記基板の表面上の複数の箇所からの前記PL放射を測定するように構成されている、請求項1に記載のモニタリング装置。
- 前記計算デバイスが、前記PL層の厚さに基づいて、前記ドーパント濃度を特定するように構成されている、請求項1に記載のモニタリング装置。
- 基板上に配置された光ルミネセンス(PL)層の特性を特定する方法であって、
可視スペクトル又は近可視スペクトルからの光を含む励起光を生成すること、
前記励起光の第1の部分を前記PL層上の第1の測定箇所に導くこと、
前記励起光の第2の部分を前記PL層上の第2の測定箇所に導くこと、
前記励起光が前記PL層と相互作用したことに応じて前記PL層によって生成されたPL放射を一定範囲の時間受け取ること、
各時点における前記PL放射の光子数に基づいて信号を生成すること、及び
前記信号に基づいて前記PL層の特性を特定すること
を含み、前記PL層の前記特性は、前記PL層のドーパント濃度を含み、前記PL層のドーパント濃度は、前記PL放射に関連付けられた前記一定範囲の時間に亘る過渡PL強度情報、前記PL放射の静的PL強度値、及び前記PL層の厚さを用いた演算により特定される、
方法。 - 前記過渡PL強度情報が、前記PL放射の経時的なPL強度の減衰を含む、請求項9に記載の方法。
- 前記PL放射の前記静的PL強度値が、ある波長の範囲内で前記PL放射の総光子数に基づく、請求項10に記載の方法。
- 前記PL放射に関連付けられた過渡PL強度情報に基づく前記信号に基づいて前記PL層の特性を特定することが、オフセットを持つ指数減少関数を用いて行われる、請求項9に記載の方法。
- モニタリング装置であって、
励起光を生成する光源、
基板上に形成された光ルミネセンス(PL)層上に前記励起光を導くように構成された光学アセンブリであって、前記励起光の第1の部分を前記PL層上の第1の測定箇所に導くように構成された第1の光ファイバと、前記励起光の第2の部分を前記PL層上の第2の測定箇所に導くように構成された第2の光ファイバとを含む、光学アセンブリ、
前記励起光が前記PL層と相互作用したことに応じて前記PL層によって生成されたPL放射を受け取り、且つ前記PL放射に基づき、前記PL放射の経時的なPL強度の減衰を含む第1の信号を生成するように構成された検出器、及び
前記検出器に接続された計算デバイスであって、前記検出器から前記第1の信号を受信し、前記第1の信号に基づいて前記PL層内のドーパント濃度を特定するように構成された計算デバイス
を備える、モニタリング装置。 - 堆積チャンバを更に備え、前記基板が前記堆積チャンバ内に配置されている間に、前記検出器が、前記PL層によって生成された前記PL放射を受け取るように構成されている、請求項13に記載のモニタリング装置。
- 移送チャンバを更に備え、前記基板が前記移送チャンバ内に配置されている間に、前記検出器が、前記PL層によって生成された前記PL放射を受け取るように構成されている、請求項13に記載のモニタリング装置。
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| US16/258,392 US10935492B2 (en) | 2018-04-13 | 2019-01-25 | Metrology for OLED manufacturing using photoluminescence spectroscopy |
| JP2020555129A JP7158494B2 (ja) | 2018-04-13 | 2019-03-29 | 光ルミネセンス分光法を用いた有機発光ダイオード製造のための計測学 |
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| KR20220129598A (ko) * | 2020-01-22 | 2022-09-23 | 어플라이드 머티어리얼스, 인코포레이티드 | Oled 층 두께 및 도펀트 농도의 인-라인 모니터링 |
| KR102778467B1 (ko) * | 2020-01-22 | 2025-03-06 | 어플라이드 머티어리얼스, 인코포레이티드 | Oled 층 두께 및 도펀트 농도의 인-라인 모니터링 |
| US12163783B2 (en) | 2021-04-21 | 2024-12-10 | Applied Materials, Inc. | Digital holography for alignment in layer deposition |
| JP2022189563A (ja) * | 2021-06-11 | 2022-12-22 | 株式会社ディスコ | インゴットの処理方法および処理装置 |
| KR20230033251A (ko) | 2021-08-31 | 2023-03-08 | 삼성디스플레이 주식회사 | 표시 장치 |
| KR102928320B1 (ko) | 2021-09-30 | 2026-02-19 | 삼성디스플레이 주식회사 | 디스플레이 장치 및 그 제조방법 |
| FR3150595B1 (fr) * | 2023-06-30 | 2025-06-20 | Aledia | Procédé et système de caractérisation d’un dispositif optoélectronique |
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| WO2018047948A1 (ja) | 2016-09-09 | 2018-03-15 | 東洋紡株式会社 | 有機発光素子ならびにそれに用いる発光材料および化合物 |
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| KR101240785B1 (ko) | 2003-12-12 | 2013-03-07 | 엘리멘트 식스 리미티드 | 화학적 증착 다이아몬드에 마크를 통합시키는 방법 |
| US7256057B2 (en) | 2004-09-11 | 2007-08-14 | 3M Innovative Properties Company | Methods for producing phosphor based light sources |
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| JP2023015045A (ja) | 2023-01-31 |
| TW202208829A (zh) | 2022-03-01 |
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| US11662317B2 (en) | 2023-05-30 |
| JP7158494B2 (ja) | 2022-10-21 |
| US20210208077A1 (en) | 2021-07-08 |
| EP3775848A4 (en) | 2021-12-15 |
| CN112088298A (zh) | 2020-12-15 |
| TW201944626A (zh) | 2019-11-16 |
| US20230266247A1 (en) | 2023-08-24 |
| TWI773276B (zh) | 2022-08-01 |
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