JP2007258141A - 導電粒子、接着剤組成物、回路接続材料及び接続構造、並びに回路部材の接続方法 - Google Patents
導電粒子、接着剤組成物、回路接続材料及び接続構造、並びに回路部材の接続方法 Download PDFInfo
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- JP2007258141A JP2007258141A JP2006183619A JP2006183619A JP2007258141A JP 2007258141 A JP2007258141 A JP 2007258141A JP 2006183619 A JP2006183619 A JP 2006183619A JP 2006183619 A JP2006183619 A JP 2006183619A JP 2007258141 A JP2007258141 A JP 2007258141A
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Images
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01044—Ruthenium [Ru]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01045—Rhodium [Rh]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01046—Palladium [Pd]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H—ELECTRICITY
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- H—ELECTRICITY
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Abstract
Description
図6は、本発明に係る回路部材の接続方法の一実施形態を概略断面図により示す工程図である。本実施形態では、回路接続材料を熱硬化させて接続構造を製造する。
導電性を有する核粒子を以下のようにして製造した。すなわち、基材粒子として架橋ポリスチレン粒子(総研化学製、商品名:SXシリーズ、平均粒径:4μm)を準備し、この粒子の表面上に、無電解めっき処理によってNi層(厚さ0.08μm)を設けた。更に、このNi層の外側に無電解めっき処理によってAu層(厚さ0.03μm)を設け、Ni層及びAu層からなる導電層を有する核粒子を得た。
上記のようにして製造した回路接続材料を用いてITO基板(表面抵抗<20Ω/□)とICチップとを接続し、接続構造を形成した。ICチップは、面積2500μm2(50μm×50μm)、ピッチ100μm、高さ20μmの金バンプを備えるものを使用した。ITO基板は、厚さ1.1mmのガラス板の表面上にITOを蒸着により形成したものを使用した。
上記のようにして作製した接続構造の接続部の初期抵抗を抵抗測定機(株式会社アドバンテスト製、商品名:デジタルマルチメータ)を用いて測定した。なお、測定は電極間に1mAの電流を流して行った。
隣接する電極間の絶縁抵抗を抵抗測定機(株式会社アドバンテスト製、商品名:デジタルマルチメータ)を用い、以下の手順で測定した。まず、接続構造の接続部に直流(DC)50Vの電圧を1分間印加した。そして、絶縁抵抗の測定は、電圧印加後の接続部に対し、2端子測定法によって行った。なお、上記の電圧の印加には、電圧計(株式会社アドバンテスト製、商品名:ULTRA HIGH RESISTANCE METER)を用いた。
次に、接続部の抵抗値の経時的な上昇について、温度サイクル試験を行うことによって評価した。温度サイクル試験は、接続構造を温度サイクル槽(ETAC製、商品名:NT1020)内に収容し、室温から−40℃への降温、−40℃から100℃への昇温及び100℃から室温への降温の温度サイクルを500回繰り返すことによって行った。−40℃及び100℃における保持時間は、いずれも30分とした。温度サイクル試験後の接続部分の抵抗の測定は、初期抵抗の測定と同様に行った。
架橋度20%の架橋アクリル樹脂の代わりに、架橋度10%の架橋アクリル樹脂(総研化学製、商品名:MPシリーズ、ゲル分率:8%)を使用したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。導電粒子の被覆率は、25%であった。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を形成せず、絶縁被覆を備える導電粒子を使用する代わりにこの核粒子を用いたことの他は、実施例1と同様にして回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
核粒子の表面上に絶縁被覆を下記のようにして形成したことの他は、実施例1と同様にして導電粒子、回路接続材料及び接続構造を作製した。
Claims (11)
- 前記有機高分子化合物が、架橋度5〜20%の範囲のものである、請求項1に記載の導電粒子。
- 前記絶縁被覆は、前記核粒子の表面上に設けられた、前記有機高分子化合物を含有する複数の絶縁性粒子で構成されるものであり、前記絶縁性粒子の粒径(D2)と前記核粒子の粒径(D1)との比率(D2/D1)が、1/10以下である、請求項1又は2に記載の導電粒子。
- 前記絶縁被覆は、前記核粒子の表面上に設けられた、前記有機高分子化合物を含有する絶縁性層で構成されるものであり、前記絶縁性層の厚さ(T2)と前記核粒子の粒径(D1)との比率(T2/D1)が、1/10以下である、請求項1又は2に記載の導電粒子。
- 接着性を有する接着剤成分と、
前記接着剤成分中に分散している、請求項1〜4のいずれか一項に記載の導電粒子と、
を備える接着剤組成物。 - 請求項5に記載の接着剤組成物からなり、回路部材同士を接着するとともにそれぞれの回路部材が有する回路電極同士を電気的に接続するために用いられる、回路接続材料。
- 対向配置された一対の回路部材と、
請求項6に記載の回路接続材料の硬化物からなり、前記一対の回路部材の間に介在しそれぞれの回路部材が有する回路電極同士が電気的に接続されるように当該回路部材同士を接着する接続部と、を備える接続構造。 - 前記一対の回路部材の少なくとも一方が、ICチップである、請求項7に記載の接続構造。
- 前記一対の回路部材がそれぞれ有する回路電極の少なくとも一方の表面が、金、銀、錫、ルテニウム、ロジウム、パラジウム、オスミウム、イリジウム、白金及びインジウム錫酸化物から選ばれる少なくとも1種で構成されている、請求項7又は8に記載の接続構造。
- 前記接続部に当接している前記一対の回路部材の当接面の少なくとも一方が、窒化シリコン、シリコーン化合物及びポリイミド樹脂から選ばれる少なくとも1種以上の素材によって構成される部分を有するものである、請求項7〜9のいずれか一項に記載の接続構造。
- 対向配置された一対の回路部材の間に請求項6に記載の回路接続材料を介在させ、全体を加熱及び加圧して、前記回路接続材料の硬化物からなり、前記一対の回路部材の間に介在しそれぞれの回路部材が有する回路電極同士が電気的に接続されるように前記回路部材同士を接着する接続部を形成することにより、前記一対の回路部材及び前記接続部を備える接続構造を得る、回路部材の接続方法。
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JP2006183619A JP4967482B2 (ja) | 2006-02-27 | 2006-07-03 | 導電粒子、接着剤組成物及び回路接続材料 |
US12/307,564 US20100065311A1 (en) | 2006-07-03 | 2007-04-10 | Conductive particle, adhesive composition, circuit-connecting material, circuit-connecting structure, and method for connection of circuit member |
PCT/JP2007/057978 WO2008004367A1 (en) | 2006-07-03 | 2007-04-11 | Conductive particle, adhesive composition, circuit-connecting material, circuit-connecting structure, and method for connection of circuit member |
CNA2007800250842A CN101484950A (zh) | 2006-07-03 | 2007-04-11 | 导电粒子、粘接剂组合物、电路连接材料和连接结构,以及电路部件的连接方法 |
EP07741414A EP2040268A4 (en) | 2006-07-03 | 2007-04-11 | CONDUCTIVE PARTICLE, ADHESIVE COMPOSITION, CIRCUIT CONNECTION MATERIAL, CIRCUIT CONNECTION STRUCTURE, AND METHODS OF CONNECTING CIRCUIT MEMBER |
KR1020097002143A KR101078157B1 (ko) | 2006-07-03 | 2007-04-11 | 도전 입자, 접착제 조성물, 회로 접속 재료 및 접속 구조, 및 회로 부재의 접속 방법 |
TW96113362A TWI412043B (zh) | 2006-02-27 | 2007-04-16 | Conductive particles, adhesive composition, circuit connection material and connection structure and circuit component connection method |
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