JP7656850B2 - 加工対象物切断方法及び樹脂塗布装置 - Google Patents
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Description
Claims (8)
- 加工対象物の表面又は裏面に、紫外線が照射されることで硬化する拡張可能シートを貼り付ける第1工程と、
前記第1工程の後、切断予定ラインに沿って前記加工対象物にレーザ光を照射して改質領域を形成し、前記拡張可能シートを拡張することにより、前記加工対象物の少なくとも一部を複数のチップに分割すると共に、複数のチップ間に存在し且つ前記加工対象物の側面に至る隙間を形成する第2工程と、
前記第1工程後、前記拡張可能シートに紫外線を照射し、前記拡張可能シートを硬化させる第3工程と、
前記第2工程及び前記第3工程の後、前記加工対象物における前記側面を含む外縁部から前記隙間に樹脂を充填する第4工程と、
前記第4工程の後、前記樹脂を硬化させる第5工程と、
前記第5工程の後、前記拡張可能シート上から前記チップを取り出す第6工程と、を含み、
前記第3工程では、前記拡張可能シートに紫外線を照射し、前記拡張可能シートの濡れ性を向上させ且つ前記拡張可能シートの前記加工対象物に対する粘着力を低下させ、
前記第1工程では、前記加工対象物の前記表面及び前記裏面のうちデバイス層側とは反対側の一方に前記拡張可能シートを貼り付け、
前記第4工程では、前記樹脂の塗布前に、前記加工対象物の前記表面及び前記裏面のうち前記デバイス層側の他方に保護シート又は保護テープを貼り付ける、加工対象物切断方法。 - 前記第4工程では、
前記加工対象物をテーブルに載置した状態で前記隙間に前記樹脂を充填しており、
前記テーブルにおいて前記樹脂を塗布する位置が前記加工対象物よりも高くなるように前記テーブルを傾斜させる、請求項1に記載の加工対象物切断方法。 - 前記第5工程では、前記加工対象物をテーブルに載置した状態で、当該加工対象物の前記隙間に充填されている前記樹脂に下方から紫外線を照射することにより、前記樹脂を硬化させ、
前記第3工程では、前記加工対象物をテーブルに載置した状態で、前記加工対象物における前記拡張可能シートが貼り付けられた前記表面又は前記裏面側から、前記拡張可能シートに紫外線を照射し、前記拡張可能シートの濡れ性を向上させ且つ前記拡張可能シートの前記加工対象物に対する粘着力を低下させる、請求項1又は2に記載の加工対象物切断方法。 - 前記第4工程では、
前記加工対象物をテーブルに載置した状態で前記隙間に前記樹脂を充填しており、
前記樹脂の充填量は、当該樹脂の液面が、前記加工対象物の上面よりも下方で且つ前記上面に最も近い前記改質領域よりも上方に位置する量である、請求項1~3の何れか一項に記載の加工対象物切断方法。 - 前記第1工程では、前記加工対象物の前記表面及び前記裏面のうちデバイス層側の一方に前記拡張可能シート、保護シート又は保護テープを貼り付ける、請求項1~4の何れか一項に記載の加工対象物切断方法。
- 前記第2工程では、前記隙間が10μm~300μmとなるように前記拡張可能シートを拡張する、請求項1~5の何れか一項に記載の加工対象物切断方法。
- 表面又は裏面のうちデバイス層側とは反対側の一方に、紫外線が照射されることで硬化する拡張可能シートが貼り付けられ、前記表面及び前記裏面のうち前記デバイス層側の他方に、保護シート又は保護テープを貼り付けられた加工対象物を載置するテーブルと、
前記テーブルに載置された前記加工対象物の前記拡張可能シート上に樹脂を塗布する樹脂塗布部と、
前記テーブルに載置された前記加工対象物に紫外線を照射する紫外線照射部と、を備え、
前記テーブルに載置された前記加工対象物は、前記拡張可能シートが拡張され、少なくとも一部が複数のチップに分割されていると共に、複数のチップ間に存在し且つ側面に至る隙間が形成されており、
前記樹脂塗布部は、前記加工対象物における前記側面を含む外縁部から前記隙間に樹脂を充填し、
前記紫外線照射部は、
前記樹脂の塗布前において前記テーブルに載置された前記加工対象物に貼り付けられた前記拡張可能シートに紫外線を照射し、前記拡張可能シートを硬化させると共に、前記拡張可能シートの濡れ性を向上させ且つ前記拡張可能シートの前記加工対象物に対する粘着力を低下させ、
前記樹脂の塗布後において前記テーブルに載置された前記加工対象物の前記隙間に充填されている前記樹脂に紫外線を照射し、前記樹脂を硬化させる、樹脂塗布装置。 - 切断予定ラインに沿って改質領域が形成された前記加工対象物の表面又は裏面に貼り付けられた前記拡張可能シートを拡張して、前記加工対象物の少なくとも一部を複数のチップに分割すると共に、複数のチップ間に存在し且つ前記加工対象物の側面に至る隙間を形成するエキスパンド部を更に備える、請求項7に記載の樹脂塗布装置。
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| JP2020027260A JP7656850B2 (ja) | 2020-02-20 | 2020-02-20 | 加工対象物切断方法及び樹脂塗布装置 |
| DE112021001175.8T DE112021001175T5 (de) | 2020-02-20 | 2021-02-05 | Werkstückschneideverfahren und Harzaufbringungsvorrichtung |
| PCT/JP2021/004395 WO2021166696A1 (ja) | 2020-02-20 | 2021-02-05 | 加工対象物切断方法及び樹脂塗布装置 |
| US17/799,389 US12519018B2 (en) | 2020-02-20 | 2021-02-05 | Workpiece cutting method and resin applying device |
| CN202180014261.7A CN115088059A (zh) | 2020-02-20 | 2021-02-05 | 加工对象物切割方法及树脂涂布装置 |
| KR1020227026809A KR20220143017A (ko) | 2020-02-20 | 2021-02-05 | 가공 대상물 절단 방법 및 수지 도포 장치 |
| TW110105277A TWI897924B (zh) | 2020-02-20 | 2021-02-17 | 加工對象物切斷方法及樹脂塗布裝置 |
| JP2025001978A JP7791554B2 (ja) | 2020-02-20 | 2025-01-06 | 加工対象物切断方法及び樹脂塗布装置 |
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| JP7258420B2 (ja) * | 2019-01-18 | 2023-04-17 | 株式会社ディスコ | レーザーダイシング用保護膜剤、レーザーダイシング用保護膜剤の製造方法及びレーザーダイシング用保護膜剤を用いた被加工物の加工方法 |
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| JP2008218708A (ja) | 2007-03-05 | 2008-09-18 | Fujitsu Ltd | 樹脂充填装置、充填方法および電子装置の製造方法 |
| JP2011151231A (ja) | 2010-01-22 | 2011-08-04 | Sanyo Electric Co Ltd | 半導体モジュールの製造方法 |
| JP2015028981A (ja) | 2013-07-30 | 2015-02-12 | 株式会社ディスコ | 積層板状物の加工方法 |
| JP2016119402A (ja) | 2014-12-22 | 2016-06-30 | 豊田合成株式会社 | 発光装置の製造方法 |
| JP2018198241A (ja) | 2017-05-23 | 2018-12-13 | 株式会社ディスコ | ウェーハの加工方法 |
| JP2018198274A (ja) | 2017-05-24 | 2018-12-13 | 協立化学産業株式会社 | 加工対象物切断方法 |
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| JP2025036730A (ja) | 2025-03-14 |
| JP7791554B2 (ja) | 2025-12-24 |
| TW202135969A (zh) | 2021-10-01 |
| DE112021001175T5 (de) | 2023-01-19 |
| US20230343646A1 (en) | 2023-10-26 |
| WO2021166696A1 (ja) | 2021-08-26 |
| TWI897924B (zh) | 2025-09-21 |
| CN115088059A (zh) | 2022-09-20 |
| KR20220143017A (ko) | 2022-10-24 |
| JP2021132147A (ja) | 2021-09-09 |
| US12519018B2 (en) | 2026-01-06 |
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