JP5422921B2 - 接着フィルム - Google Patents
接着フィルム Download PDFInfo
- Publication number
- JP5422921B2 JP5422921B2 JP2008139005A JP2008139005A JP5422921B2 JP 5422921 B2 JP5422921 B2 JP 5422921B2 JP 2008139005 A JP2008139005 A JP 2008139005A JP 2008139005 A JP2008139005 A JP 2008139005A JP 5422921 B2 JP5422921 B2 JP 5422921B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive film
- particles
- conductive
- filler
- average particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
- H05K3/323—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives by applying an anisotropic conductive adhesive layer over an array of pads
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- Engineering & Computer Science (AREA)
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- Manufacturing & Machinery (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Wire Bonding (AREA)
- Adhesive Tapes (AREA)
- Die Bonding (AREA)
Description
エポキシ化合物と硬化剤とフィラーとの合計量に対するフィラーの含有量が10〜70質量%であり、
該フィラーが、0.5〜1.0μmの平均粒子径の第1の非導電性無機粒子と、0.5〜1.0μmの平均粒子径の第2の非導電性無機粒子を平均粒子径が1.5μmを超えないように無電解メッキ処理されてなる導電性粒子とを含有しており、
フィラーの10〜60質量%が該導電性粒子である
ことを特徴とする接着フィルムを提供する。
平均粒子径0.5μmのシリカ粒子(球状シリカ、トクヤマ社)に対し、無電解ニッケルメッキ液を用いて無電解ニッケルメッキ処理を行った。無電解ニッケルメッキ処理により得られた粒子に対し、更に無電解金メッキ液を用いて無電解金メッキ処理を施すことにより、平均粒子径0.6μmの導電性粒子を得た。
平均粒子径0.5μmのシリカ微粒子に代えて、平均粒子径1.0μmのシリカ微粒子(球状シリカ、トクヤマ社)を使用したこと以外は参考例1と同様にして平均粒子径1.1μmの導電性粒子を得た。
平均粒子径0.5μmのシリカ微粒子に代えて、平均粒子径3.5μmのシリカ微粒子(ハイプレシカ、宇部日東化成社)を使用したこと以外は参考例1と同様にして平均粒子径3.6μmの導電性粒子を得た。
エポキシ樹脂(エポコート828、ジャパンエポキシレジン社)50質量部と、潜在性硬化剤(HX3941HP、旭化成ケミカル社)100質量部と、平均粒子径0.5μmのシリカ微粒子(球状シリカ、トクヤマ社)50質量部との混合物を、固形分が50質量%となるようにトルエンに溶解・分散させてなる熱硬化型接着組成物を、剥離処理された50μm厚のポリエチレンテレフタレート(PET)フィルム(セパレーター、東セロ社)に、乾燥厚で40μmとなるように塗布し80℃で乾燥することにより、熱硬化型の比較例1の接着フィルムを作成した。
エポキシ樹脂(エポコート828、ジャパンエポキシレジン社)50質量部と、潜在性硬化剤(HX3941HP、旭化成ケミカル社)100質量部と、平均粒子径0.5μmのシリカ微粒子(球状シリカ、トクヤマ社)45質量部と、参考例1の導電性粒子5質量部との混合物を、固形分が50質量%となるようにトルエンに溶解・分散させてなる熱硬化型接着組成物を、剥離処理された50μm厚のPETフィルム(セパレーター、東セロ社社)に、乾燥厚で40μmとなるように塗布し80℃で乾燥することにより、熱硬化型の実施例1の接着フィルムを作成した。全固形分(エポキシ樹脂と硬化剤とフィラーの合計)に対するフィラーの含有量は25質量%となる。
平均粒子径0.5μmのシリカ微粒子45質量部を25質量部とし、導電性粒子を25質量部としたこと以外は実施例1と同様にして熱硬化型の実施例2の接着フィルムを作成した。
平均粒子径0.5μmのシリカ微粒子45質量部を5質量部とし、参考例1の導電性粒子5質量部を45質量部としたこと以外は実施例1と同様にして熱硬化型の比較例2の接着フィルムを作成した。
平均粒子径0.5μmのシリカ微粒子45質量部を25質量部とし、参考例1の導電性粒子5質量部に代えて参考例2の導電性粒子25質量部使用したこと以外は実施例1と同様にして熱硬化型の実施例3の接着フィルムを作成した。
平均粒子径0.5μmのシリカ微粒子に代えて、平均粒子径3.5μmのシリカ粒子(ハイプレシカ、宇部日東化成社)を使用し、参考例2の導電性粒子に代えて参考例3の導電性粒子を使用したこと以外は実施例3と同様にして熱硬化型の比較例3の接着フィルムを作成した。
平均粒子径0.5μmのシリカ微粒子を使用せず、且つ参考例1の導電性粒子5質量部に代えて、有機粒子コアの表面に無電解ニッケル/金メッキを施した、平均粒子径4.0μmの導電性粒子(ブライト、日本化学社)10質量部を使用したこと以外は実施例1と同様にして熱硬化型の比較例4の異方性導電フィルムを作成した。
参考例1の導電性粒子に代えて、有機粒子コアの表面に無電解ニッケル/金メッキを施した、平均粒子径4.0μmの導電性粒子(ブライト、日本化学社)を使用したこと以外は実施例1と同様にして熱硬化型の比較例5の異方性導電フィルムを作成した。
シリカ微粒子45質量部を75質量部とし、導電性粒子5質量部を75質量部としたこと以外は実施例1と同様にして熱硬化型の実施例4の異方性導電フィルムを作成した。本実施例においては、バインダー組成物の固形分全体に相当するエポキシ化合物と硬化剤とフィラーとの合計量に対してフィラーの含有量は50質量%であった。
シリカ微粒子45質量部を175質量部とし、導電性粒子5質量部を175質量部としたこと以外は実施例1と同様にして熱硬化型の実施例5の異方性導電フィルムを作成した。本実施例においては、バインダー組成物の固形分全体に相当するエポキシ化合物と硬化剤とフィラーとの合計量に対してフィラーの含有量は70質量%であった。
各実施例及び比較例の接着フィルム及び異方性導電フィルムのそれぞれを、評価用の配線基板の電極パッド上に仮貼りし、剥離フィルムを取り除いた後、その上に評価用の半導体チップをそのバンプ面から載置し、温度180℃、圧力2.5MPaで20秒間半導体チップを加熱加圧することにより、導通抵抗測定用の接続構造体サンプルを作成した。
実施例1の接着フィルム及び比較例4の異方性導電フィルムについて、比誘電率と絶縁特性とを以下に説明するように評価した。
Claims (8)
- エポキシ化合物と硬化剤とフィラーとを含有するバインダー組成物からなり、配線基板にバンプを有する半導体チップをフリップチップ実装するための接着フィルムであって、
エポキシ化合物と硬化剤とフィラーとの合計量に対するフィラーの含有量が10〜70質量%であり、
該フィラーが、0.5〜1.0μmの平均粒子径の第1の非導電性無機粒子と、0.5〜1.0μmの平均粒子径の第2の非導電性無機粒子を平均粒子径が1.1μmを超えないように無電解メッキ処理されてなる導電性粒子とを含有しており、
フィラーの10〜50質量%が該導電性粒子である
ことを特徴とする接着フィルム。
- 第1及び第2の非導電性無機粒子が、シリカ微粒子、アルミナ粒子又は二酸化チタン粒子である請求項1記載の接着フィルム。
- 第1及び第2の該非導電性無機粒子が、0.5〜0.8μmの平均粒子径を有する請求項1又は2記載の接着フィルム。
- 該導電性粒子の粒子径が、1.1μm以下である請求項1〜3のいずれかに記載の接着フィルム。
- 該導電性粒子の平均粒子径が、第1の該非導電性無機粒子の平均粒子径の1.0〜2.0倍である請求項1〜4のいずれかに記載の接着フィルム。
- 該無電解メッキ処理の金属種が、金、ニッケル、ニッケル/金、又はハンダである請求項1〜5のいずれかに記載の接着フィルム。
- バンプを有する半導体チップが、請求項1〜6のいずれかに記載の接着フィルムを介して配線基板に接続固定されてなる接続構造体。
- 半導体チップのバンプと、配線基板のバンプとが接続されている請求項7記載の接続構造体。
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JP2008139005A JP5422921B2 (ja) | 2008-05-28 | 2008-05-28 | 接着フィルム |
EP09754513.1A EP2282328B1 (en) | 2008-05-28 | 2009-03-31 | Adhesive film |
KR1020107024201A KR101464807B1 (ko) | 2008-05-28 | 2009-03-31 | 접착 필름 |
CN2009801202313A CN102047401B (zh) | 2008-05-28 | 2009-03-31 | 粘结膜 |
PCT/JP2009/056592 WO2009145005A1 (ja) | 2008-05-28 | 2009-03-31 | 接着フィルム |
US12/811,599 US20100290205A1 (en) | 2008-05-28 | 2009-03-31 | Adhesive film |
TW098111452A TWI381036B (zh) | 2008-05-28 | 2009-04-07 | Then the film |
HK11106591.7A HK1152589A1 (en) | 2008-05-28 | 2011-06-27 | Adhesive film |
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EP (1) | EP2282328B1 (ja) |
JP (1) | JP5422921B2 (ja) |
KR (1) | KR101464807B1 (ja) |
CN (1) | CN102047401B (ja) |
HK (1) | HK1152589A1 (ja) |
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JP2012116958A (ja) * | 2010-12-01 | 2012-06-21 | Furukawa Electric Co Ltd:The | 接着フィルムおよび配線基板 |
JP5609716B2 (ja) * | 2011-03-07 | 2014-10-22 | デクセリアルズ株式会社 | 光反射性異方性導電接着剤及び発光装置 |
KR101401574B1 (ko) * | 2012-05-30 | 2014-06-11 | 한국과학기술연구원 | 하이브리드 필러를 이용한 전도성 접착제 및 이의 제조방법 |
WO2016076096A1 (ja) * | 2014-11-12 | 2016-05-19 | デクセリアルズ株式会社 | 熱硬化性接着組成物 |
KR102505853B1 (ko) | 2016-07-06 | 2023-03-03 | 삼성전자 주식회사 | 반도체 패키지 |
CN111560232B (zh) * | 2020-06-08 | 2022-04-01 | 东莞市新懿电子材料技术有限公司 | 一种单组分环氧树脂流动型底部填充胶粘剂及其制备方法 |
CN113444481A (zh) * | 2021-07-14 | 2021-09-28 | 深圳市汇海鑫科技有限公司 | 一种led芯片封装用导电胶粘剂及其制备方法 |
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KR100589449B1 (ko) * | 1997-04-17 | 2006-06-14 | 세키스이가가쿠 고교가부시키가이샤 | 전자회로부품 |
JP3120837B2 (ja) * | 1998-03-18 | 2000-12-25 | 日本電気株式会社 | 電気的接続用の樹脂フィルムおよび樹脂フィルムを用いた電気的接続方法 |
US6099745A (en) * | 1998-06-05 | 2000-08-08 | Parlex Corporation | Rigid/flex printed circuit board and manufacturing method therefor |
JP2000080341A (ja) * | 1998-06-22 | 2000-03-21 | Toshiba Chem Corp | 異方性導電接着剤および基板搭載デバイス |
KR100305750B1 (ko) * | 1999-03-10 | 2001-09-24 | 윤덕용 | 플라스틱 기판의 플립 칩 접속용 이방성 전도성 접착제의 제조방법 |
JP3632558B2 (ja) * | 1999-09-17 | 2005-03-23 | 日立化成工業株式会社 | 封止用エポキシ樹脂組成物及び電子部品装置 |
JP3491595B2 (ja) * | 2000-02-25 | 2004-01-26 | ソニーケミカル株式会社 | 異方導電性接着フィルム |
JP4719992B2 (ja) | 2001-03-19 | 2011-07-06 | 日立化成工業株式会社 | 接着剤組成物およびその用途 |
JP2004043602A (ja) * | 2002-07-10 | 2004-02-12 | Bridgestone Corp | 異方性導電フィルム |
JP2005089660A (ja) * | 2003-09-18 | 2005-04-07 | Nitto Denko Corp | 半導体封止用樹脂組成物 |
US7186945B2 (en) * | 2003-10-15 | 2007-03-06 | National Starch And Chemical Investment Holding Corporation | Sprayable adhesive material for laser marking semiconductor wafers and dies |
KR101178745B1 (ko) * | 2004-07-15 | 2012-09-07 | 세키스이가가쿠 고교가부시키가이샤 | 도전성 미립자, 도전성 미립자의 제조 방법, 및 이방성도전 재료 |
US7408263B2 (en) * | 2005-05-03 | 2008-08-05 | E.I. Du Pont De Nemours And Company | Anisotropic conductive coatings and electronic devices |
US20070213429A1 (en) * | 2006-03-10 | 2007-09-13 | Chih-Min Cheng | Anisotropic conductive adhesive |
TW200804557A (en) * | 2006-07-07 | 2008-01-16 | Ablestik Japan Co Ltd | Conductive adhesive agent |
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- 2009-03-31 WO PCT/JP2009/056592 patent/WO2009145005A1/ja active Application Filing
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- 2009-03-31 US US12/811,599 patent/US20100290205A1/en not_active Abandoned
- 2009-03-31 EP EP09754513.1A patent/EP2282328B1/en not_active Not-in-force
- 2009-03-31 CN CN2009801202313A patent/CN102047401B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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TWI381036B (zh) | 2013-01-01 |
US20100290205A1 (en) | 2010-11-18 |
WO2009145005A1 (ja) | 2009-12-03 |
TW200948923A (en) | 2009-12-01 |
HK1152589A1 (en) | 2012-03-02 |
EP2282328A1 (en) | 2011-02-09 |
CN102047401A (zh) | 2011-05-04 |
EP2282328B1 (en) | 2015-09-02 |
KR20110019358A (ko) | 2011-02-25 |
EP2282328A4 (en) | 2011-12-21 |
KR101464807B1 (ko) | 2014-11-24 |
JP2009289857A (ja) | 2009-12-10 |
CN102047401B (zh) | 2012-11-28 |
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