JPWO2006112383A1 - 電子回路装置およびその製造方法 - Google Patents
電子回路装置およびその製造方法 Download PDFInfo
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- JPWO2006112383A1 JPWO2006112383A1 JP2007526852A JP2007526852A JPWO2006112383A1 JP WO2006112383 A1 JPWO2006112383 A1 JP WO2006112383A1 JP 2007526852 A JP2007526852 A JP 2007526852A JP 2007526852 A JP2007526852 A JP 2007526852A JP WO2006112383 A1 JPWO2006112383 A1 JP WO2006112383A1
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Abstract
Description
2 導体配線
3,32 接続端子
4,34 樹脂バインダ
5,35 導電体粒子
6,61 異方導電性樹脂層
10 紫外線
11,23 光硬化領域
12,17,20,24 硬化済異方導電性樹脂層
13,18 硬化済フィレット
14,140 遮蔽板
15,150 光通過領域
16 フィレット
19 硬化反応開始領域
21 転写基板
22 粘着層
33 異方導電性シート
36 電子部品
51,53 核
52,54 突起部
38 熱硬化済樹脂
71 第1の電子部品(電子部品)
72 第2の電子部品(電子部品)
73 第3の電子部品(電子部品)
81,82,83,37 電極端子
91 第1の間隔
92 第2の間隔
93 第3の間隔
図1Aおよび図1Bは、本発明の第1の実施の形態にかかる2種類の電子回路装置の構成を示すそれぞれの断面図である。図1Aおよび図1Bの電子回路装置の構成の違いは、以下の通りである。すなわち、電子部品である第1の電子部品71、第2の電子部品72および第3の電子部品73の厚みが異なり、図1Aの構成ではこれらの電子部品の背面が同一面となるように配置されており、図1Bでは接続端子3と電極端子81、82、83との間隔91、92、93が同じになるように配置していることである。
図3Aから図3Cは、本発明の第2の実施の形態にかかる電子回路装置の製造方法を説明する断面図である。
図4Aから図4Dは、本発明の第3の実施の形態にかかる電子回路装置の製造方法を説明する断面図である。
図5Aから図5Dは、本発明の第4の実施の形態にかかる電子回路装置の製造方法を説明する断面図である。
図6Aから図6Dは、本発明の第5の実施の形態における電子回路装置の製造方法を説明する断面図である。
図7Aから図7Cは、本発明の第6の実施の形態における電子回路装置の製造方法を説明する断面図である。
図1Aおよび図1Bは、本発明の第1の実施の形態にかかる2種類の電子回路装置の構成を示すそれぞれの断面図である。図1Aおよび図1Bの電子回路装置の構成の違いは、以下の通りである。すなわち、電子部品である第1の電子部品71、第2の電子部品72および第3の電子部品73の厚みが異なり、図1Aの構成ではこれらの電子部品の背面が同一面となるように配置されており、図1Bでは接続端子3と電極端子81、82、83との間隔91、92、93が同じになるように配置していることである。
図3Aから図3Cは、本発明の第2の実施の形態にかかる電子回路装置の製造方法を説明する断面図である。
図4Aから図4Dは、本発明の第3の実施の形態にかかる電子回路装置の製造方法を説明する断面図である。
図5Aから図5Dは、本発明の第4の実施の形態にかかる電子回路装置の製造方法を説明する断面図である。
図6Aから図6Dは、本発明の第5の実施の形態における電子回路装置の製造方法を説明する断面図である。
図7Aから図7Cは、本発明の第6の実施の形態における電子回路装置の製造方法を説明する断面図である。
2 導体配線
3,32 接続端子
4,34 樹脂バインダ
5,35 導電体粒子
6,61 異方導電性樹脂層
10 紫外線
11,23 光硬化領域
12,17,20,24 硬化済異方導電性樹脂層
13,18 硬化済フィレット
14,140 遮蔽板
15,150 光通過領域
16 フィレット
19 硬化反応開始領域
21 転写基板
22 粘着層
33 異方導電性シート
36 電子部品
51,53 核
52,54 突起部
38 熱硬化済樹脂
71 第1の電子部品(電子部品)
72 第2の電子部品(電子部品)
73 第3の電子部品(電子部品)
81,82,83,37 電極端子
91 第1の間隔
92 第2の間隔
93 第3の間隔
Claims (18)
- 少なくとも一方の面に導体配線および接続端子が形成された回路基板と、
前記回路基板の前記一方の面に設けられた異方導電性樹脂層と、
前記接続端子と対向する位置にそれぞれ電極端子を設けた複数の電子部品とを有し、
前記異方導電性樹脂層は、コイル状の導電体粒子、繊維毛玉状の導電体粒子および表面に導電性を有する複数の突起部を備えた導電体粒子から選択された少なくとも1種類の導電体粒子と樹脂バインダとを含み、複数の前記電子部品の前記電極端子と前記接続端子とを前記導電体粒子により電気的に接続するとともに、前記電子部品と前記回路基板とを機械的に固定し、かつ前記導体配線を保護することを特徴とする電子回路装置。 - 複数の前記電子部品は少なくとも厚さの異なる2個以上からなり、前記電極端子と前記接続端子との間に介挿されている前記異方導電性樹脂層の厚みが、厚みの異なる前記電子部品間でそれぞれ異なることを特徴とする請求項1に記載の電子回路装置。
- 複数の前記電子部品は少なくとも厚さの異なる2個以上からなり、前記電極端子と前記接続端子との間に介挿されている前記異方導電性樹脂層の厚みが、前記電子部品間で同じであることを特徴とする請求項1に記載の電子回路装置。
- 前記電子部品の側面に、前記異方導電性樹脂層によるフィレットが形成されていることを特徴とする請求項1から請求項3までのいずれか1項に記載の電子回路装置。
- 前記樹脂バインダが、光硬化型絶縁性樹脂、熱硬化型絶縁性樹脂、光照射によって硬化反応が開始され、所定の時間経過後に硬化が完了する遅行硬化型絶縁性樹脂、および嫌気硬化型絶縁性樹脂から選択された少なくとも1種類を用いたことを特徴とする請求項1に記載の電子回路装置。
- 回路基板上に、コイル状の導電体粒子、繊維毛玉状の導電体粒子および表面に導電性を有する複数の突起部を備えた導電体粒子から選択された少なくとも1種類の導電体粒子と樹脂バインダとを含む異方導電性樹脂からなる異方導電性樹脂層を設ける異方導電層形成ステップと、
前記回路基板の接続端子に電子部品の電極端子を位置合せする位置合せステップと、
前記電子部品を押圧し前記異方導電性樹脂層中に圧入して、前記電極端子と前記接続端子との間の前記異方導電性樹脂層を圧縮し、前記導電体粒子により前記電極端子と前記接続端子とを電気的に接触させる部品押圧ステップと、
前記異方導電性樹脂層を硬化して、前記電子部品と前記回路基板とを接着固定する硬化ステップとを有することを特徴とする電子回路装置の製造方法。 - 前記異方導電層形成ステップ後、
前記位置合せステップを複数の前記電子部品に対して行った後に、複数の前記電子部品に対して、一括して前記部品押圧ステップと前記硬化ステップとを行うことを特徴とする請求項6に記載の電子回路装置の製造方法。 - 前記異方導電層形成ステップ後、
前記位置合せステップおよび前記部品押圧ステップを複数の電子部品に対して行った後に、複数の前記電子部品に対して、一括して前記硬化ステップを行うことを特徴とする請求項6に記載の電子回路装置の製造方法。 - 前記異方導電性樹脂の前記樹脂バインダは、光硬化型絶縁性樹脂と熱硬化型絶縁性樹脂とからなり、前記位置合せステップ後に、前記電子部品を前記異方導電性樹脂層上に固定した状態で前記電子部品側から前記電子部品の周辺部のみに光照射する光照射ステップをさらに含むことを特徴とする請求項6に記載の電子回路装置の製造方法。
- 前記部品押圧ステップにおいて、前記電子部品を押圧した状態で、前記電子部品の周辺部の前記異方導電性樹脂層に光照射する第2の光照射ステップをさらに含むことを特徴とする請求項9に記載の電子回路装置の製造方法。
- 前記異方導電性樹脂の前記樹脂バインダは、光硬化型絶縁性樹脂と熱硬化型絶縁性樹脂とからなり、
前記部品押圧ステップにおいて、前記導電体粒子により前記電極端子と前記接続端子とを電気的に接触させた後に、前記電子部品の周辺部の前記異方導電性樹脂層に光照射する光照射ステップをさらに含むことを特徴とする請求項6に記載の電子回路装置の製造方法。 - 前記異方導電性樹脂の前記樹脂バインダは、光照射によって硬化反応が開始され、所定の時間経過後に硬化が完了する遅行硬化型絶縁性樹脂と熱硬化型絶縁性樹脂とからなり、
前記異方導電層形成ステップ後、前記回路基板の前記電子部品を接続する接続領域の前記異方導電性樹脂層にあらかじめ光照射を行い、前記遅行硬化型絶縁性樹脂の硬化を開始させる硬化開始ステップをさらに含むことを特徴とする請求項6に記載の電子回路装置の製造方法。 - 前記異方導電性樹脂の前記樹脂バインダは、光照射によって硬化反応が開始され、所定の時間経過後に硬化が完了する遅行硬化型絶縁性樹脂と熱硬化型絶縁性樹脂とからなり、
前記異方導電層形成ステップ後、前記回路基板の前記電子部品を接続する接続領域の前記異方導電性樹脂層にあらかじめ光照射を行い、前記遅行硬化型絶縁性樹脂の硬化を開始させる硬化開始ステップと、前記部品押圧ステップを繰り返して行い、複数個の前記電子部品を前記回路基板の所定の位置に固定した後に、前記硬化ステップを行うことを特徴とする請求項7に記載の電子回路装置の製造方法。 - 前記異方導電性樹脂の前記樹脂バインダは、光硬化型絶縁性樹脂と熱硬化型絶縁性樹脂とからなり、前記回路基板は光透過性を有し、
前記部品押圧ステップにおいて、前記電極端子と前記接続端子とを電気的に接触させた後に、前記回路基板の裏面側から前記回路基板を通して前記異方導電性樹脂層に光照射する光照射ステップをさらに含むことを特徴とする請求項6に記載の電子回路装置の製造方法。 - 前記部品押圧ステップにおいて、前記異方導電性樹脂層の圧縮により、前記導電体粒子が変形して、その一部が前記接続端子と前記電極端子とに埋め込まれて電気的に接続されることを特徴とする請求項6に記載の電子回路装置の製造方法。
- 光照射するステップにおいて、スポット状の光ビームにより照射することを特徴とする請求項9に記載の電子回路装置の製造方法。
- 前記異方導電性樹脂がシート状であり、前記シート状の前記異方導電性樹脂を前記回路基板に貼り付けて前記異方導電性樹脂層を形成することを特徴とする請求項6に記載の電子回路装置の製造方法。
- 前記異方導電性樹脂がペースト状であり、前記ペースト状の前記異方導電性樹脂を前記回路基板に塗布して前記異方導電性樹脂層を形成することを特徴とする請求項6に記載の電子回路装置の製造方法。
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- 2006-04-14 JP JP2007526852A patent/JP4692544B2/ja not_active Expired - Fee Related
- 2006-04-14 CN CNB2006800121438A patent/CN100573839C/zh not_active Expired - Fee Related
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Also Published As
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JP4692544B2 (ja) | 2011-06-01 |
CN100573839C (zh) | 2009-12-23 |
US20090133900A1 (en) | 2009-05-28 |
US7935892B2 (en) | 2011-05-03 |
CN101160650A (zh) | 2008-04-09 |
WO2006112383A1 (ja) | 2006-10-26 |
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