JP2017066174A - 熱硬化性組成物およびシート・装置の製造方法 - Google Patents
熱硬化性組成物およびシート・装置の製造方法 Download PDFInfo
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- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
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Abstract
Description
(シート1)
図1に示すように、シート状の熱硬化性組成物11をシート1は含む。第1面と第1面に対向した第2面とで熱硬化性組成物11の両面は定義される。シート1は、第1面上に設けられた第1セパレータ12をさらに含む。第1セパレータ12としてポリエチレンテレフタレート(PET)フィルムなどを挙げることができる。シート1は、第2面上に設けられた第2セパレータ13をさらに含む。第2セパレータ13としてポリエチレンテレフタレート(PET)フィルムなどを挙げることができる。
図2に示すように、装置の製造方法は、熱硬化性組成物11を電子部品21上に配置する工程を含む。図3に示すように、装置の製造方法は、電子部品21および電子部品21を覆う熱硬化性組成物11を含む複合体2を形成する工程をさらに含む。装置の製造方法は、複合体2を加熱することにより熱硬化性組成物11の硬化を起こす工程をさらに含む。
変形例1では、熱硬化性組成物11は複数の層を有する多層構造をなす。
樹脂シートを作製するために使用した成分について説明する。
エポキシ樹脂1:日本化薬社製のEPPN−501HY(エポキン当量162g/eq.〜172g/eq.軟化点51℃〜57℃のエポキシ樹脂)
エポキシ樹脂2:三菱化学社製のjER828(エポキン当量184g/eq.〜194g/eq.の25℃で液状のビスフェノールA型エポキシ樹脂)
エポキシ樹脂3:DIC社製のHP7200(エポキン当量254g/eq.〜264g/eq.、軟化点56℃〜66℃のジシクロペンタジエン型エポキシ樹脂)
フェノール樹脂:群栄化学社製のLVR−8210DL(水酸基当量104g/eq.、軟化点60℃のノボラック型フェノール樹脂)
フィラー:電気化学工業社製のFB−9454FC(溶融球状シリカ)
シリコーン系粒子:東レダウコーニング社製のEP−2601(エポキシ基を有する、平均粒径2μmの球状シリコーンエラストマー粒子)
カーボンブラック:三菱化学社製の#20
触媒:四国化成工業社製の2PHZ−PW(2−フェニル−4,5−ジヒドロキシメチルイミダゾール)
シランカップリング剤:信越化学社製のKBM−403(3−グリシドキシプロピルトリメトキシシラン)
表1の記載にしたがい各成分を配合し、ロール混練機により60〜120℃、10分間、減圧条件下(0.01kg/cm2)で溶融混練し、混合物を調製した。平板プレス法で混合物をシート状に成形することにより、厚み1mmの樹脂シートを調整した。
以下の評価をおこなった。結果を表1に示す。
樹脂シートをくり抜くことにより直径25mmの円形状のサンプルを得た。粘弾性測定装置ARES(レオメトリックス・サイエンティフィック社製)を用いてサンプルの溶融粘度を測定した。具体的には、プレート径25mmのパラレルプレートでサンプルを挟み、昇温速度10℃/min、ひずみ10%、周波数1Hzで溶融粘度を測定した。50℃〜150℃における溶融粘度の最低値を最低溶融粘度とした。
8インチのミラーウエハと、ミラーウエハ上に等間隔に貼り付けられた150個の接着シート付シリコンチップ―厚み500μm、7mm角―とを有する「チップ付きウエハ」を準備した。直径8インチ、厚み1000μmの円盤状樹脂を樹脂シートから切り出した。円盤状樹脂を「チップ付きウエハ」上に積層することにより積層体を形成した。平板プレス装置で積層体をプレスすることにより、ミラーウエハと、ミラーウエハに固定された150個の接着シート付シリコンチップと、150個の接着シート付シリコンチップを覆う厚み700μmの保護樹脂とを備える構造物を得た。熱風循環式乾燥機を用いて180℃で2時間 構造物を加熱することにより保護樹脂を硬化させた。直径1mm以上の大きさの凹凸または直径0.5mm以上のピンホールの少なくともどちらかが硬化後の保護樹脂の表面(ひょうめん)にある場合は×と判定した。直径1mm以上の大きさの凹凸および直径0.5mm以上のピンホールの両者がない場合は○と判定した。
熱風循環式乾燥機を用いて180℃で2時間 構造物を加熱することにより保護樹脂を硬化させた。加熱後の構造物について内部ボイドと未充填領域―内部空間―とを超音波映像装置(日立ファインテック社製のFS200II)で観察した。25MHzのプローブを使用し、反射モードで観察した。0.5mm以上の内部ボイドまたは0.5mm以上の未充填領域の少なくともどちらかがある場合は×と判定した。0.5mm以上のボイドおよび0.5mm以上の未充填領域の両者がない場合は○と判定した。
熱風循環式乾燥機を用いて180℃で2時間 構造物を加熱することにより保護樹脂を硬化させた。硬化後の保護樹脂の表面(ひょうめん)を目視で観察した。模様を認める場合は×と判定した。模様を認めない場合は○と判定した。
11 熱硬化性組成物
12 第1セパレータ
13 第2セパレータ
21 電子部品
2 複合体
31 硬化後の熱硬化性組成物
141 仮固定体
142 支持板
143 粘着剤層
121 半導体チップ
161 下側加熱板
162 上側加熱板
102 チップ複合体
171 配線
241 実装ウェハ
242 半導体ウェハ
243 アンダーフィル材
221 半導体チップ
261 下側加熱板
262 上側加熱板
202 ウェハ複合体
271 配線
Claims (8)
- フェノール樹脂と無機充填剤とシリコーン系粒子とを含む、シート状の熱硬化性組成物。
- エポキシ樹脂をさらに含む請求項1に記載の熱硬化性組成物。
- 前記熱硬化性組成物の重量から前記無機充填剤の合計重量を減じることにより求められた第1重量を100%としたとき、前記シリコーン系粒子の合計重量が0.5%〜50%である請求項1または2に記載の熱硬化性組成物。
- 前記シリコーン系粒子がエポキシ基を有する請求項1〜3のいずれかに記載の熱硬化性組成物。
- 最低溶融粘度が100Pa・s〜10000Pa・sである請求項1〜4のいずれかに記載の熱硬化性組成物。
- 電子部品を封止するための請求項1〜5のいずれかに記載の熱硬化性組成物。
- 請求項1〜6のいずれかに記載の熱硬化性組成物を含み、
前記熱硬化性組成物は、第1面と前記第1面に対向した第2面とで両面が定義され、
前記第1面上に設けられた第1セパレータと、
前記第2面上に設けられた第2セパレータとをさらに含むシート。 - 請求項1〜6のいずれかに記載の熱硬化性組成物を電子部品上に配置する工程と、
前記電子部品および前記電子部品を覆う前記熱硬化性組成物を含む複合体を形成する工程と、
前記複合体を加熱することにより前記熱硬化性組成物の硬化を起こす工程とを含み、
前記複合体を形成する工程は、前記熱硬化性組成物の軟化を起こすステップを含む装置の製造方法。
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WO2013073606A1 (ja) * | 2011-11-15 | 2013-05-23 | 株式会社日本触媒 | シラン含有組成物、硬化性樹脂組成物及び封止材 |
JP2013151642A (ja) * | 2011-12-27 | 2013-08-08 | Hitachi Chemical Co Ltd | 電子部品用液状樹脂組成物及びその製造方法、並びに電子部品装置 |
JP2015030745A (ja) * | 2013-07-31 | 2015-02-16 | 住友ベークライト株式会社 | 樹脂組成物、半導体装置、多層回路基板および電子部品 |
JP2015137299A (ja) * | 2014-01-21 | 2015-07-30 | 住友ベークライト株式会社 | 樹脂組成物、接着シート、ダイシングテープ一体型接着シート、バックグラインドテープ一体型接着シート、バックグラインドテープ兼ダイシングテープ一体型接着シート、および電子装置 |
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TWI673318B (zh) * | 2013-11-29 | 2019-10-01 | 日商納美仕股份有限公司 | 環氧樹脂組成物、半導體密封劑及半導體裝置 |
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JP2009097014A (ja) * | 2007-09-27 | 2009-05-07 | Hitachi Chem Co Ltd | 封止用液状樹脂組成物、電子部品装置及びウエハーレベルチップサイズパッケージ |
WO2013073606A1 (ja) * | 2011-11-15 | 2013-05-23 | 株式会社日本触媒 | シラン含有組成物、硬化性樹脂組成物及び封止材 |
JP2013151642A (ja) * | 2011-12-27 | 2013-08-08 | Hitachi Chemical Co Ltd | 電子部品用液状樹脂組成物及びその製造方法、並びに電子部品装置 |
JP2015030745A (ja) * | 2013-07-31 | 2015-02-16 | 住友ベークライト株式会社 | 樹脂組成物、半導体装置、多層回路基板および電子部品 |
JP2015137299A (ja) * | 2014-01-21 | 2015-07-30 | 住友ベークライト株式会社 | 樹脂組成物、接着シート、ダイシングテープ一体型接着シート、バックグラインドテープ一体型接着シート、バックグラインドテープ兼ダイシングテープ一体型接着シート、および電子装置 |
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WO2017056994A1 (ja) | 2017-04-06 |
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