JP2014183266A - 回路部材の接続方法 - Google Patents
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Abstract
【解決手段】この回路部材の接続方法では、異方導電性接着剤層4に熱11を付与しながら第1の回路部材2と第2の回路部材3とに積層方向の圧力12を付与し、その後に異方導電性接着剤層4に光13を照射する。この方法では、熱11及び圧力12の付与によって、第1の回路部材2と第2の回路部材3との間の導通が確保されるまで異方導電性接着剤層4を十分に流動させた後、導通が確保されたタイミングで光13の照射によって異方導電性接着剤層4の粘度を瞬時に上昇させて接合を完了させることができる。したがって、バンプ電極5及び回路電極8の突出量が小さい場合であっても導通を迅速かつ良好に確保できる。
【選択図】図5
Description
Claims (5)
- 突出量が3μm以下の電極が形成された第1の回路部材及び第2の回路部材を、導電粒子及び接着剤成分を含む異方導電性接着剤を介して接続する回路部材の接続方法であって、
前記異方導電性接着剤の前記接着剤成分として光硬化型樹脂を用い、
前記電極同士が対向するように前記異方導電性接着剤を挟んで前記第1の回路部材と前記第2の回路部材とを積層し、
前記異方導電性接着剤に熱を付与しながら前記第1の回路部材と前記第2の回路部材とに積層方向の圧力を付与し、その後に前記異方導電性接着剤に光を照射することを特徴とする回路部材の接続方法。 - 前記第1の回路部材の電極と前記第2の回路部材の電極との間の間隔が前記導電粒子の径の1.5倍以下となるように前記電極同士を対向させることを特徴とする請求項1記載の回路部材の接続方法。
- 前記第1の回路部材と前記第2の回路部材との積層方向から見て中央部分に位置する前記異方導電性接着剤が、前記熱及び前記圧力の付与によって流動を開始した後に前記異方導電性接着剤に光を照射することを特徴とする請求項1又は2記載の回路部材の接続方法。
- 前記熱及び前記圧力の付与から1秒以上経過した後に前記異方導電性接着剤に光を照射することを特徴とする請求項1〜3のいずれか一項記載の回路部材の接続方法。
- 前記第1の回路部材及び前記第2の回路部材の少なくとも一方の基板に光透過性を有する部材を用いることを特徴とする請求項1〜4のいずれか一項記載の回路部材の接続方法。
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Cited By (10)
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KR101861897B1 (ko) * | 2015-10-29 | 2018-05-28 | 삼성에스디아이 주식회사 | 이방 도전성 필름 및 이를 이용한 디스플레이 장치 |
KR20190010879A (ko) | 2016-09-13 | 2019-01-31 | 데쿠세리아루즈 가부시키가이샤 | 필러 함유 필름 |
KR20190016571A (ko) | 2016-10-31 | 2019-02-18 | 데쿠세리아루즈 가부시키가이샤 | 필러 함유 필름 |
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KR20230056062A (ko) | 2016-12-01 | 2023-04-26 | 데쿠세리아루즈 가부시키가이샤 | 필러 함유 필름 |
WO2023189611A1 (ja) * | 2022-03-29 | 2023-10-05 | 日東電工株式会社 | 接続構造体 |
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KR20210114596A (ko) | 2020-03-10 | 2021-09-24 | 삼성디스플레이 주식회사 | 표시장치 |
KR20210122359A (ko) | 2020-03-30 | 2021-10-12 | 삼성디스플레이 주식회사 | 표시 장치 및 표시 장치 제조 방법 |
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