JPWO2019146672A1 - 樹脂組成物およびその硬化物、電子部品用接着剤、半導体装置、ならびに電子部品 - Google Patents
樹脂組成物およびその硬化物、電子部品用接着剤、半導体装置、ならびに電子部品 Download PDFInfo
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Abstract
Description
〔1〕(A)水添ビスフェノールA型エポキシ樹脂、
(B)多官能チオール樹脂、および
(C)硬化触媒
を含み、
硬化物の50℃における弾性率が、0.5GPa以上であることを特徴とする、樹脂組成物。
〔2〕さらに、20℃以上50℃未満における弾性率が、0.5GPa以上である、上記〔1〕に記載の樹脂組成物。
〔3〕硬化物のガラス転移温度が50℃を超える、上記〔1〕または〔2〕記載の樹脂組成物。
〔4〕(B)成分が、分子中にエステル結合を有しない多官能チオール樹脂を含む、上記〔1〕〜〔3〕のいずれかに記載の樹脂組成物。
〔5〕(B)成分が、グリコールウリル化合物を含む、上記〔1〕〜〔4〕のいずれかに記載の樹脂組成物。
〔6〕(B)成分のグリコールウリル化合物が、(B)成分100質量部に対して、40〜100質量部である、上記〔5〕に記載の樹脂組成物。
〔7〕さらにシリカフィラーを含む、上記〔1〕〜〔6〕のいずれかに記載の樹脂組成物。〔8〕上記〔1〕〜〔7〕のいずれかに記載の樹脂組成物、を含む電子部品用接着剤。
〔9〕上記〔1〕〜〔7〕のいずれかに記載の樹脂組成物、の硬化物。
〔10〕上記〔9〕に記載の硬化物を含む、半導体装置。
〔11〕上記〔9〕に記載の硬化物、または上記〔10〕に記載の半導体装置、を含む電子部品。
(A)水添ビスフェノールA型エポキシ樹脂、
(B)多官能チオール樹脂、および
(C)硬化触媒
を含み、
硬化物の50℃における弾性率が、0.5GPa以上であることを特徴とする。
本発明の電子部品用接着剤は、上述の樹脂組成物を含む。
本発明の樹脂組成物の硬化物は、上述の樹脂組成物の硬化物である。
本発明の半導体装置は、上述の樹脂組成物の硬化物を含むため、落下時の衝撃に対する耐性に優れる。また、信頼性の高いものである。
(A’)成分のビスフェノールA型エポキシ樹脂には三菱化学製ビスフェノールA型エポキシ樹脂(品名828EL:、エポキシ当量:173g/eq)を、
(A’)成分のシロキサン骨格エポキシ樹脂には、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社製シロキサン骨格エポキシ樹脂(品名:TSL9906、エポキシ当量:181g/eq)を、
(B)成分の(B−1)C3 TS−Gには、四国化成工業製グリコールウリル誘導体(品名:C3 TS−G、チオール当量:114g/eq)を、
(B−2)PEPTには、SC有機化学製チオール化合物(品名:PEPT、チオール当量:124g/eq)を、
(B−3)PEMPには、SC有機化学製ペンタエリスリトールテトラキス(3−メルカプトプロピオネート)(商品名:PEMP、チオール当量:128g/eq)を、
(C)成分の(C−1)硬化触媒には、T&K TOKA製硬化触媒(品名:FXR1211)を、(C−2)硬化触媒には、旭化成製硬化触媒(品名:HXA3922)を、
(D)成分のシリカには、アドマテックス製シリカ(品名:SO−E2、平均粒径:0.5μm)を、シランカップリング剤には、信越化学工業製3−グリシドキシプロピルトリメトキシシラン(品名:KBM−403)を、
使用した。
表1、2に示す配合で、原料を混合した後、室温で3本ロールミルを用いて分散した。それにより、実施例1〜8、比較例1〜3の樹脂組成物を作製した。
《耐落下衝撃試験の測定に用いた部材》
・部材1:SUS基板
・部品2:Niコートブロック、サイズ:幅:9mm×長さ:9mm×厚さ:4mm
(i)SUS基板の上に、調製した樹脂組成物(試料)を接着剤として塗布した。塗布サイズは、幅:9mm×長さ:9mm×厚さ:0.3mmとした。
(ii)塗布した試料の上に、Niコートブロックを載置して、試験片とした。
(iii)試験片を、80℃に加熱したオーブンに投入し、試料を30分間加熱硬化させた。
(iv)試料を加熱硬化させた後、オーブンから試験片を取り出し、室温で落下衝撃試験機(日立テクノロジー&サービス社製)を用いて、NiコートブロックがSUS板から剥離する高さを、落下高さとした。落下高さは、200mmから始め、500mmまでは100mm毎に高さを上げた。500mm以上は50mmずつ高さを上げて、試験を行った。なお、落下回数は、各高さで5回行い、剥離しなければ次の高さで試験を行った。表1、2に、結果を示す。耐落下衝撃性の高さは、450mm以上であることが好ましく、600mm以上であることがより好ましい。
ステンレス板(SUS−304製、平滑板:40mm×60mm×0.3mm)に、硬化した時の膜厚が500±100μmとなるように樹脂組成物を塗布して塗膜を形成した。その後、80℃で1時間放置して硬化させた。この塗膜をステンレス板から剥がした後、カッターで所定寸法(5mm×40mm)に切り取った。なお、切り口はサンドペーパーで滑らかに仕上げた。この塗膜を、JIS C6481に従い、セイコーインスツル社製、動的熱機械測定(DMA)を用いて、引張り法により、周波数10Hzで測定した。表1、2に、50℃の貯蔵弾性率を示す。表1、2には、記載していないが、実施例1〜6の弾性率は、0℃でも、大きく変わらなかった。また、DMA測定により得られた損失弾性率/貯蔵弾性率の最大値の温度を、ガラス転移温度としたところ、すべての実施例でガラス転移温度が50℃を超えていた。一方、比較例3の弾性率は、0℃にしたときには、弾性率が高くなった。図1に、実施例6,7および比較例3のDMAチャートを示す。
(i)LCP基板の上に、調製した樹脂組成物(試料)を接着剤として塗布した。塗布サイズは、2mmφとした。
(ii)塗布した試料の上に、3.2mm×1.6mm×0.45mm厚のアルミナチップを載置して、試験片とした。
(iii)試験片を、80℃に加熱したオーブンに投入し、試料を30分間加熱硬化させた。
(iv)試験片をグリコールエーテル系の溶剤に50℃30分間含浸した後、試験片を溶剤から取り出し純水でリンスを行った。その後、リンスした試験片を80℃で1時間乾燥した。
(v)乾燥した試験片を室温でシェア強度を測定した。60N以上で合格とした。
Claims (11)
- (A)水添ビスフェノールA型エポキシ樹脂、
(B)多官能チオール樹脂、および
(C)硬化触媒
を含み、
硬化物の50℃における弾性率が、0.5GPa以上であること、を特徴とする、樹脂組成物。 - さらに、20℃以上50℃未満における弾性率が、0.5GPa以上である、請求項1に記載の樹脂組成物。
- 硬化物のガラス転移温度が50℃を超える、請求項1又は2に記載の樹脂組成物。
- (B)成分が、分子中にエステル結合を有しない多官能チオール樹脂を含む、請求項1から3のいずれか1項に記載の樹脂組成物。
- (B)成分が、グリコールウリル化合物を含む、請求項1から4のいずれか1項に記載の樹脂組成物。
- (B)成分のグリコールウリル化合物が、(B)成分100質量部に対して、40〜100質量部である、請求項5に記載の樹脂組成物。
- さらにシリカフィラーを含む請求項1から6のいずれか1項に記載の樹脂組成物。
- 請求項1から7のいずれか1項に記載の樹脂組成物を含む、電子部品用接着剤。
- 請求項1から7のいずれか1項に記載の樹脂組成物の硬化物。
- 請求項9に記載の硬化物を含む、半導体装置。
- 請求項9記載の硬化物、または上記請求項10に記載の半導体装置を含む、電子部品。
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