JP2021528249A - 薄膜構造のレーザー処理方法 - Google Patents
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Abstract
Description
本発明は、レーザーを使用して薄膜構造を処理する方法に関する。
ET=(tT/AT)×(tP×frep)×(AL/AT)×(εS/tP) 式1
Rraster=AT/tT 式2
Claims (19)
- 薄膜構造を処理する方法であって、
基板の表面に支持された2つ以上の薄膜層のスタックを備える薄膜構造を提供し、前記スタックは基板表面に直交する深さを有するステップと、
直接書き込みレーザー技術を使用して、前記スタックの前記表面上の所望のカットラインの領域をカバーする走査経路に沿ってレーザービームを走査し、前記カットラインに沿っておよび前記スタックの前記深さを通して、少なくとも前記基板の表面まで前記スタックの材料をアブレーションして、前記スタックの前記深さを通してカットを形成するステップと、を備え、
ここで、前記直接書き込みレーザー技術は、1000フェムト秒以下の持続時間、100〜1500nmの範囲の波長でパルスを出力し、50〜100,000mJ/cm2の範囲のフルエンスを供給する超短パルスレーザーを使用して実装される、方法。 - 前記レーザー出力パルスは、
(a)300フェムト秒以下、
(b)200フェムト秒以下、または
(c)100〜200フェムト秒
から選択される持続時間を有する、請求項1に記載の方法。 - 前記レーザービームは、
(a)1〜10,000mm/s、
(b)50〜600mm/s、または
(c)100〜500mm/s
から選択される走査速度で走査経路に沿って走査される、請求項1に記載の方法。 - 前記パルスは、
(a)0.1〜10,000kHz
(b)1〜1000kHz
(c)1〜500kHz
(d)1〜200kHz
(e)10〜200kHzまたは
(f)100〜200kHz
から選択される繰り返し数で前記レーザーから出力される、請求項1から3のいずれか一項に記載の方法。 - 前記レーザービームは、前記スタックの前記材料をアブレーションするために、前記走査経路に沿って1回以上走査される、請求項1から4のいずれか一項に記載の方法。
- 前記レーザービームは、
(a)0.001〜0.1mm、
(b)0.001〜0.01mm、
(c)0.01〜0.1mm、または
(d)0.01〜0.02mm
から選択されるスポット幅で前記スタックの前記表面に入射する、請求項1から5のいずれか一項に記載の方法。 - 前記カットラインは、
(a)0.015〜2mm、
(b)0.1〜2mm、または
(c)0.5〜1mm
から選択される幅を有する、請求項1から6のいずれか一項に記載の方法。 - 前記レーザービームは、前記カットラインの幅の50分の1以下のスポット幅で前記スタックの前記表面に入射する、請求項1から7のいずれか一項に記載の方法。
- 前記レーザービームは、スポットの中心で最大となる強度プロファイルを有するスポットを有し、前記スタックの前記表面に入射する、請求項1から8のいずれか一項に記載の方法。
- 前記強度プロファイルは、ガウスプロファイルまたはベッセルプロファイルである、請求項9に記載の方法。
- 前記アブレーションは、前記カットが前記基板の前記表面と実質的に同じ深さを有するまで継続されるか、または前記カットが前記基板の前記表面を越えて延在する深さを有するまで継続され、ここで、前記深さは、
(a)500μm以下、
(b)200μm以下、
(c)100μm以下、
(d)1〜100μm、
(e)1〜50μm、
(f)1〜25μm、
(g)1〜10μm、または
(h)10μm以下
から選択される、請求項1から10のいずれか一項に記載の方法。 - 前記スタックの前記深さは、
(a)200μm以下、
(b)50〜200μm、
(c)5〜100μm、
(d)5〜50μm、
(e)10〜40μm、または
(f)10〜20μm
から選択される、請求項1から11のいずれか一項に記載の方法。 - 前記スタックの前記薄膜層は、
(a)正極活物質、
(b)電解質材料、
(c)負極活物質、および
(d)負極集電体
を備える電池の層に対応する、請求項1から12のいずれか一項に記載の方法。 - (a)前記基板は、導電性基板であり、
(b)前記正極活物質は、LiCoO2であり、
(c)前記電解質材料は、LIPON、ホウケイ酸リチウム、または窒素ドープホウケイ酸リチウムであり、
(d)前記負極活物質は、アモルファスSiであり、および
(e)前記負極集電体は、プラチナまたはモリブデンである、
請求項13に記載の方法。 - 前記レーザーは、正弦波パターンで走査される、請求項1から14のいずれか一項に記載の方法。
- 前記正弦波パターンは、前記カットライン幅に垂直な伝播を伴う波を備え、ピークトゥピーク振幅がカットライン幅以下である、請求項7から15のいずれか一項に記載の方法。
- 前記カットラインは、カットによって前記スタックを互いに分離された複数の要素に分割するように形作られる、請求項1から16のいずれか一項に記載の方法。
- 前記方法は、前記カットのラインを通じて前記基板をスライスして前記要素を互いに物理的に分離するステップをさらに含み、必要に応じて、カットの形成と基板のスライスとの間に1つ以上の追加の処理段階を含む、請求項14に記載の方法。
- 請求項1から15のいずれか一項に記載の方法を使用して、薄膜電池層のスタックを備える薄膜構造から、電池用の要素を分離するカットを形成するステップを含む、薄膜電池の製造方法。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1805624.2A GB2572608A (en) | 2018-04-03 | 2018-04-03 | Laser processing method for thin film structures |
| GB1805624.2 | 2018-04-03 | ||
| PCT/GB2019/050953 WO2019193330A1 (en) | 2018-04-03 | 2019-04-02 | Laser processing method for thin film structures |
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| Publication Number | Publication Date |
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| JP2021528249A true JP2021528249A (ja) | 2021-10-21 |
| JPWO2019193330A5 JPWO2019193330A5 (ja) | 2022-04-08 |
| JP7424641B2 JP7424641B2 (ja) | 2024-01-30 |
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| EP (1) | EP3774161A1 (ja) |
| JP (1) | JP7424641B2 (ja) |
| KR (1) | KR102832158B1 (ja) |
| CN (1) | CN112135707A (ja) |
| GB (1) | GB2572608A (ja) |
| WO (1) | WO2019193330A1 (ja) |
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| US11984599B2 (en) * | 2019-11-27 | 2024-05-14 | GM Global Technology Operations LLC | Electrode components with laser induced surface modified current collectors and methods of making the same |
| KR20210141870A (ko) * | 2020-05-14 | 2021-11-23 | 삼성전자주식회사 | 웨이퍼 처리 장치 및 이를 이용한 반도체 소자 제조 방법 |
| CN112662864B (zh) * | 2020-12-11 | 2022-06-21 | 浙江工业大学 | 一种薄钢板的水下淬火方法 |
| WO2022203916A2 (en) * | 2021-03-23 | 2022-09-29 | Clerio Vision, Inc. | Coordinated scanning and power control of laser for forming structures in ophthalmic lenses |
| DE102021202964A1 (de) | 2021-03-25 | 2022-09-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Verfahren und Vorrichtung zum Schneiden einer metallhaltigen Folie und Laser-geschnittene metallhaltige Folie |
| CN114290698B (zh) * | 2021-12-24 | 2023-01-31 | 华中科技大学 | 高分子薄膜大深宽比激光加工方法 |
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| CN115519259B (zh) * | 2022-10-22 | 2024-05-24 | 长沙大科激光科技有限公司 | 一种高频电流辅助双光束激光切割方法 |
| KR102759257B1 (ko) * | 2023-01-06 | 2025-01-23 | 주식회사 에스에프에이 | 기판 레이저 커팅 장치 및 기판 레이저 커팅 방법 |
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| KR102832158B1 (ko) | 2025-07-09 |
| US12109651B2 (en) | 2024-10-08 |
| KR20200136391A (ko) | 2020-12-07 |
| WO2019193330A1 (en) | 2019-10-10 |
| JP7424641B2 (ja) | 2024-01-30 |
| GB2572608A (en) | 2019-10-09 |
| EP3774161A1 (en) | 2021-02-17 |
| US20210101231A1 (en) | 2021-04-08 |
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