JP6388228B2 - 半導体封止用液状エポキシ樹脂組成物とそれを用いた半導体装置 - Google Patents
半導体封止用液状エポキシ樹脂組成物とそれを用いた半導体装置 Download PDFInfo
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- JP6388228B2 JP6388228B2 JP2013272975A JP2013272975A JP6388228B2 JP 6388228 B2 JP6388228 B2 JP 6388228B2 JP 2013272975 A JP2013272975 A JP 2013272975A JP 2013272975 A JP2013272975 A JP 2013272975A JP 6388228 B2 JP6388228 B2 JP 6388228B2
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- epoxy resin
- coupling agent
- silane coupling
- resin composition
- semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims description 81
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- 239000003822 epoxy resin Substances 0.000 claims description 47
- 229920000647 polyepoxide Polymers 0.000 claims description 47
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 42
- 239000000377 silicon dioxide Substances 0.000 claims description 23
- 239000004593 Epoxy Substances 0.000 claims description 22
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- 125000000524 functional group Chemical group 0.000 claims description 10
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- 125000003545 alkoxy group Chemical group 0.000 claims description 5
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- 125000001624 naphthyl group Chemical group 0.000 description 2
- 239000004843 novolac epoxy resin Substances 0.000 description 2
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 2
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- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 2
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Description
本発明の半導体封止用液状エポキシ樹脂組成物において、常温で液状のエポキシ樹脂との混合物全体として常温で液状となれば、常温で固形のエポキシ樹脂を配合してもよい。
具体的には、3−アミノプロピルトリメトキシシラン、3−アミノプロピルメチルジメトキシシラン、3−アミノプロピルトリエトキシシラン、3−アミノプロピルメチルジエトキシシラン、N−2−(アミノエチル)−3−アミノプロピルメチルジメトキシシラン、N−2−(アミノエチル)−3−アミノプロピルトリメトキシシラン、N−2−(アミノエチル)−3−アミノプロピルトリエトキシシランなどが挙げられる。
(エポキシ樹脂)
・ビスフェノールA型エポキシ樹脂、三菱化学(株)「828」、エポキシ当量189、常温で液状(粘度120〜150P/25℃)
(硬化剤)
・酸無水物、メチルテトラヒドロ無水フタル酸(新日本理化(株)「MH−700」、酸無水物当量166
(硬化促進剤)
イミダゾール類、四国化成工業(株)「1M2PZ」
(無機充填剤)
・シリカ、(株)トクヤマ「SE15」、平均粒径15μm
(シランカップリング剤)
・単量体エポキシシランカップリング剤、3−グリシドキシプロピルトリメトキシシラン、信越化学工業(株)「KBM−403」
・二量体エポキシシランカップリング剤、信越化学工業(株)「X41−1056」
・N−フェニル−3−アミノプロピルトリメトキシシラン、信越化学工業(株)「KBM−573」
表1に示す配合量で各成分を配合し、常法に従って撹拌、溶解、混合、分散することにより半導体封止用液状エポキシ樹脂組成物を調製した。
[粘度]
半導体封止用液状エポキシ樹脂組成物を200ccのポリ瓶に秤量し、B型粘度計にて測定し(25℃)、粘度の測定値を以下の通り判別した。
○:10Pa・s以上30Pa・s未満
△:30Pa・s以上50Pa・s未満
×:50Pa・s以上
[Tg]
半導体封止用液状エポキシ樹脂組成物をガラス板で挟みこみ、硬化させた後、長さ15mm、厚さ3mm、幅3mmの試験片を作製した。硬化条件は150℃/2hとした。TMAによりTgを測定し、次の基準により判別した。
○:80℃以上
△:50以上80℃未満
×:50℃未満
[浸入性]
予め50μmのギャップになるように2枚のガラスを重ねて、100℃に加熱し、高温の浸入性試験を行った。半導体封止用液状エポキシ樹脂組成物が20mmに到達する時間を測定し、次の基準により判別した。
○:200s以下
△:200s超250s未満
×:250s以上
[フローマーク]
上記浸入性試験で、浸入の先端の形状をマイクロスコープにて観察し、フローマークの有無を確認し、次の基準により判別した。
○:フローマークなし
×:フローマークあり
評価結果を表1に示す。
Claims (2)
- 常温で液状のエポキシ樹脂、エポキシ樹脂の硬化剤、硬化促進剤、及び無機充填剤としてシリカを含有する半導体封止用液状エポキシ樹脂組成物において、前記無機充填剤の配合量は、前記半導体封止用エポキシ樹脂組成物の全量に対して5〜40質量%であり、シランカップリング剤として、二量体以上のエポキシシランカップリング剤と、極性基を含みシランに結合する官能基を有する単量体のシランカップリング剤とを用い、前記二量体以上のエポキシシランカップリング剤と、前記単量体のシランカップリング剤の質量比が65:55〜5:1であり、前記二量体以上のエポキシシランカップリング剤と、前記単量体のシランカップリング剤との合計の配合量が、前記無機充填剤100質量部に対して0.2〜8.0質量部であり、前記シリカが、前記二量体以上のエポキシシランカップリング剤及び前記単量体のシランカップリング剤で表面処理されていて、かつ、前記単量体のシランカップリング剤がアミノシランカップリング剤であり、前記二量体以上のエポキシシランカップリング剤が、シリコーンアルコキシオリゴマーであることを特徴とする半導体封止用液状エポキシ樹脂組成物。
- 請求項1に記載の半導体封止用液状エポキシ樹脂組成物の硬化物により半導体チップと
回路基板との間が封止されていることを特徴とする半導体装置。
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