JP2009004767A - 電気装置、接続方法及び接着フィルム - Google Patents
電気装置、接続方法及び接着フィルム Download PDFInfo
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- JP2009004767A JP2009004767A JP2008136368A JP2008136368A JP2009004767A JP 2009004767 A JP2009004767 A JP 2009004767A JP 2008136368 A JP2008136368 A JP 2008136368A JP 2008136368 A JP2008136368 A JP 2008136368A JP 2009004767 A JP2009004767 A JP 2009004767A
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- Prior art keywords
- adhesive layer
- uncured adhesive
- wiring board
- uncured
- cured
- Prior art date
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Abstract
【解決手段】配線基板20と、少なくとも片面に接続端子27が配置された電気部品25とが硬化接着剤層12aにより固定されている電気装置1において、硬化接着剤層12aが、第一の硬化領域15aと、第一の硬化領域15aよりもガラス転移温度が低い第二の硬化領域18aを有する。第一の硬化領域1aと第二の硬化領域18aは配線基板20上の異なる位置に配置する。特に、細長い電機部品25を接続する場合には、その両端部を第一の硬化領域12aで接続し、その両端部の間を第二の硬化領域で接続する。
【選択図】図4
Description
硬化接着剤は、第一の硬化領域と、第一の硬化領域よりもガラス転移温度が低い第二の硬化領域を有し、第一の硬化領域と第二の硬化領域が配線基板上の異なる位置に配置されている電気装置を提供する。
配線基板20を、固定領域28の長辺が接着フィルム10bの長手方向と平行になるように圧着台4上に配置し、接着フィルム10bを配線基板20上で接着フィルム10bの長手方向に沿って走行させ、1つの接続単位29bが固定領域28上を覆う位置になったところで、押圧ローラ3で接着フィルム10bを配線基板20に押し当てる。これにより、固定領域28と、その周囲の所定領域の範囲が接続単位29bを覆うように接着する。
こうして得られる電気装置40は、極めて導通信頼性の高いものとなる。
エポキシ樹脂及び硬化剤に導電性粒子を分散させて第一の接着剤を作成した。また、第一の接着剤とは異なる種類のエポキシ樹脂に硬化剤を加え、第一の接着剤と同じ種類の導電性粒子を分散させ、導電性粒子の含有量(重量%)が第一の接着剤と同じ、第二の接着剤を作成した。
電気装置1を電気部品25側の面を下側に向けた状態で水平盤に載せ、電気部品25の長手方向の両端部を水平盤表面に密着させ、電気部品25の水平盤から離間した部分のうち、水平盤までの距離が最も長い部分の距離を反り量とした。
電気装置1の電気部品25の長手方向端部位置にある接続部分14の抵抗値を測定した。抵抗値が低い程、導通信頼性が高いことになる。
電気装置1を85℃、相対湿度85%の条件で1000時間放置した後、電気部品25が硬化接着剤層12aから剥離しているかどうかを観察した。上記試験の結果を下記表1に記載する。
上述した、実施例1の第一の接着剤の未硬化接着剤層だけを電気部品25の長手方向の両端部と中央部分の両方に配置し、加熱押圧して比較例1の電気装置を作成した。
上述した、実施例1の第二の接着剤の未硬化接着剤層だけを電気部品25の長手方向の両端部と中央部分の両方に配置し、加熱押圧して比較例2の電気装置を作成した。
10、10b 接着フィルム
11 剥離フィルム
12 未硬化接着剤層
12a 硬化接着剤層
12f 硬化接着剤層
13f 第三の硬化領域
14 接続部分
15、15d、15e 第一の未硬化接着剤層
15a、15f 第一の硬化領域
16 第一のバインダー樹脂
17 第二のバインダー樹脂
18、18d、18e 第二の未硬化接着剤層
18a、18f 第二の硬化領域
19 導電性粒子
19e 第三の未硬化接着剤層
20 配線基板
25 電気部品
26 部品本体
27 接続端子
28 固定領域
29、29b、29e 接続単位
40 電気装置
41 第一の接続部分
42 第二の接続部分
43、43b 第一の接続領域
44、44b 第二の接続領域
50 接着フィルム
51 剥離フィルム
52 未硬化接着剤層
52a 硬化接着剤層
55 第一の接着部
56 第一の未硬化接着剤層
56a 第一の硬化領域
57 第二の未硬化接着剤層
57a 第二の硬化領域
58 第二の接着部
59 導電性粒子
60、60b 配線基板
61 基板本体
63 第一のランド部分
64 第二のランド部分
65、65b 電気部品
66 部品本体
67 第一の接続端子
68 第二の接続端子
70、70b 接着フィルム
71 剥離フィルム
72 未硬化接着剤層
75 第一の接着部
76 第一の未硬化接着剤層
77 第二の未硬化接着剤層
78 第二の接着部
79 接続単位
80 電気装置
85 第一の接着部
88 第二の接着部
Claims (15)
- 配線基板と、少なくとも片面に接続端子が配置された電気部品とが硬化接着剤により固定されている電気装置であって、
硬化接着剤は、第一の硬化領域と、第一の硬化領域よりもガラス転移温度が低い第二の硬化領域を有し、第一の硬化領域と第二の硬化領域が配線基板上の異なる位置に配置されている電気装置。 - 電気部品の長手方向の両端部が、第一の硬化領域で固定され、該両端部の間が第二の硬化領域で固定されている請求項1記載の電気装置。
- 第一及び/又は第二の硬化領域に導電性粒子が分散され、
配線基板のランド部分と電気部品の接続端子とが導電性粒子を介して電気的に接続されている請求項1又は請求項2に記載の電気装置。 - 電気部品の長手方向の両端部に位置する接続端子と、配線基板のランド部分とが、第一の硬化領域で固定され、導電性粒子を介して電気的に接続されている請求項4記載の電気装置。
- 電気部品の接続端子として、第一の接続端子と、第一の接続端子より先端部分の面積が広い第二の接続端子を有し、第一の接続端子を電気的に接続する導電性粒子の含有率が、第二の接続端子を電気的に接続する導電性粒子の含有率よりも高い請求項3又は4記載の電気装置。
- 第一の未硬化接着剤層と、第一の未硬化接着剤層よりも硬化後のガラス転移温度が低い第二の未硬化接着剤層が、帯状の剥離フィルム上の異なる位置に設けられている接着フィルム。
- 第一の未硬化接着剤層と第二の未硬化接着剤層が剥離フィルムの長手方向に沿って延設されている請求項6記載の接着フィルム。
- 第一の未硬化接着剤層が、剥離フィルムの幅方向の両端部に位置し、該両端部の間に第二の未硬化接着剤層が位置する請求項7記載の接着フィルム。
- ガラス転移温度が互いに異なる第一及び第二の未硬化接着剤層が、電気部品の大きさに応じた長さの接続単位を構成し、該接続単位が剥離フィルムの長手方向に配列している請求項6記載の接着フィルム。
- 第一及び/又は第二の未硬化接着剤層が導電性粒子を含有する異方導電性接着剤層である請求項6〜9のいずれかに記載の接着フィルム。
- 第一の異方導電性接着剤層と、第一の異方導電性接着剤層よりも導電性粒子の含有率が低い第二の異方導電性接着剤層とが、剥離フィルム上の異なる位置に設けられている請求項10記載の接着フィルム。
- 配線基板と、少なくとも片面に接続端子が配置された電気部品とを、硬化接着剤で固定する接続方法であって、配線基板と電気部品の間の異なる位置に、第一の未硬化接着剤層と、第一の未硬化接着剤層よりも硬化後のガラス転移温度が低い第二の未硬化接着剤層を配置し、第一及び第二の未硬化接着剤層を硬化させ、配線基板と電気部品とを固定する接続方法。
- 第一の未硬化接着剤層を電気部品の長手方向の両端部に配置し、該両端部の間に第二の未硬化接着剤層を配置した状態で、第一及び第二の未硬化接着剤層を硬化させる請求項12記載の接続方法。
- 請求項6〜11のいずれかに記載の接着フィルムを配線基板上に走行させ、接着フィルムの第一及び第二の未硬化接着剤層を配線基板に転着させることにより、第一及び第二の未硬化接着剤層を配線基板に配置する請求項12又は13に記載の接続方法。
- 請求項9記載の接着フィルムを使用し、接続単位ごとに第一及び第二の未硬化接着剤層を配線基板に転着させる請求項14記載の接続方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008136368A JP5013114B2 (ja) | 2007-05-24 | 2008-05-26 | 電気装置、接続方法及び接着フィルム |
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WO2014034102A1 (ja) * | 2012-09-03 | 2014-03-06 | シャープ株式会社 | 表示装置及びその製造方法 |
WO2015133211A1 (ja) * | 2014-03-06 | 2015-09-11 | デクセリアルズ株式会社 | 接続構造体、接続構造体の製造方法、及び回路接続材料 |
JP2016001574A (ja) * | 2014-06-12 | 2016-01-07 | 株式会社デンソー | ラミネート外装電池 |
WO2018066411A1 (ja) * | 2016-10-03 | 2018-04-12 | 日立化成株式会社 | 導電性フィルム、巻回体、接続構造体、及び接続構造体の製造方法 |
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- 2008-05-26 JP JP2008136368A patent/JP5013114B2/ja active Active
- 2008-05-26 JP JP2008136369A patent/JP5152499B2/ja not_active Expired - Fee Related
- 2008-05-26 WO PCT/JP2008/059666 patent/WO2008146793A1/ja active Application Filing
- 2008-05-26 KR KR1020097000461A patent/KR101203017B1/ko not_active IP Right Cessation
- 2008-05-26 WO PCT/JP2008/059667 patent/WO2008143358A1/ja active Application Filing
- 2008-05-26 TW TW097119331A patent/TWI422294B/zh not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
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KR20090085017A (ko) | 2009-08-06 |
CN101681855A (zh) | 2010-03-24 |
TW200850094A (en) | 2008-12-16 |
JP5013114B2 (ja) | 2012-08-29 |
HK1139506A1 (en) | 2010-09-17 |
KR101203017B1 (ko) | 2012-11-20 |
JP2009004768A (ja) | 2009-01-08 |
CN101681855B (zh) | 2013-03-13 |
TWI422294B (zh) | 2014-01-01 |
TW200847866A (en) | 2008-12-01 |
JP5152499B2 (ja) | 2013-02-27 |
WO2008146793A1 (ja) | 2008-12-04 |
TWI387412B (zh) | 2013-02-21 |
WO2008143358A1 (ja) | 2008-11-27 |
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