JP6045772B2 - 感光性接着剤組成物、フィルム状接着剤、接着シート、接着剤パターン、接着剤層付半導体ウェハ、半導体装置、及び半導体装置の製造方法 - Google Patents
感光性接着剤組成物、フィルム状接着剤、接着シート、接着剤パターン、接着剤層付半導体ウェハ、半導体装置、及び半導体装置の製造方法 Download PDFInfo
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Description
(式中、Q1、Q2及びQ3は各々独立に、炭素数1〜10のアルキレン基を示し、n1は1〜80の整数を示す。)
物と、(C)光開始剤と、(D)1分間半減期温度が120℃以上である熱ラジカル発生剤、及び(E)熱硬化性樹脂を含有する。以下、各成分について説明する。
[式中、aは2〜20の整数を示す。]
[式中、Q4及びQ9は各々独立に、炭素数1〜5のアルキレン基又は置換基を有してもよいフェニレン基を示し、Q5、Q6、Q7及びQ8は各々独立に、炭素数1〜5のアルキル基、フェニル基又はフェノキシ基を示し、dは1〜5の整数を示す。]
[式中、R41及びR42は各々独立に、水素原子又はメチル基を示し、f及びgは各々独立に、1〜20の整数を示す。]
(式中、R51及びR52はそれぞれ独立に、水素原子、炭素数1〜7のアルキル基、又は芳香族系炭化水素基を含む有機基を示し、R53は、炭素数1〜7のアルキル基、又は芳香族系炭化水素基を含む有機基を示す。)
攪拌機、温度計、及び窒素置換装置を備えたフラスコ内に、5,5’−メチレン−ビス(アントラニリックアシッド)(分子量286.3、以下「MBAA」と略す)2.16g(0.0075mol)、ポリオキシプロピレンジアミン(商品名「D−400」(分子量:452.4)、BASF製)15.13g(0.0335mol)、及び1,1,3,3−テトラメチル−1,3−ビス(3−アミノプロピル)ジシロキサン(商品名「BY16−871EG」、東レ・ダウコーニング(株)製)1.63g(0.0065mol)を入れ、NMP115gを加えて溶解させた。
攪拌機、温度計、及び窒素置換装置を備えたフラスコ内に、2,2−ビス(4−(4−アミノフェノキシ)フェニル)プロパン(分子量410.5、以下「BAPP」と略す)20.5gを入れ、NMP101gを加えて溶解させた。
BPE−100:新中村化学工業社製、エトキシ化ビスフェノールAジメタクリレート。
BPE−500:新中村化学工業社製、エトキシ化ビスフェノールAジメタクリレート。
A―9300:新中村化学工業社製、イソシアヌル酸EO変性トリアクリレート。
U−2PPA:新中村化学工業社製、2官能ウレタンアクリレート。
VG−3101:プリンテック社製、3官能エポキシ樹脂。
YDF−870GS:東都化成社製、ビスフェノールAビスグリシジルエーテル。
TrisP−PA:本州化学社製、トリスフェノール化合物(α,α,α’−トリス(4−ヒドロキシフェノル)−1−エチル−4−イソプロピルベンゼン)。
R972:日本アエロジル社製、疎水性フュームドシリカ(平均粒径:約16nm)。
I−819:チバ・スペシャルティ・ケミカルズ社製、ビス(2,4,6−トリメチルベンゾイル)−フェニルフォスフィンオキサイド。
パーヘキサ25B:日油社製、2,5−ジメチル−2,5−ジ(t−ブチルパーオキシへキサン)(1分間半減期温度:180℃)。
パークミルD:日油社製、ジクミルパーオキサイド(1分間半減期温度:175℃)。
パーロイルL:日油社製、ジラウロイルパーオキサイド(1分間半減期温度:116℃)。
NMP:関東化学社製、N−メチル−2−ピロリジノン。
支持台上に載せたシリコンウェハ(6インチ径、厚さ400μm)の裏面(支持台と反対側の面)に、実施例1〜5及び比較例1〜5で得られた接着シートを、接着剤層をシリコンウェハ側にしてロール(温度100℃、線圧4kgf/cm、送り速度0.5m/分)で加圧することにより積層した。次いで、基材(PETフィルム)を剥がし、接着剤層上に、厚み80μm、幅10mm、長さ40mmのポリイミドフィルム(宇部興産社製、「ユーピレックス」(商品名))を上記と同様の条件でロールにより加圧して積層した。このようにして準備したサンプルについて、レオメータ(東洋製機製作所社製、「ストログラフE−S」(商品名))を用いて、室温で90°ピール試験を行って、接着剤層−ユーピレックス間のピール強度を測定した。その測定結果に基づいて、ピール強度が2N/cm以上のサンプルをA、2N/cm未満のサンプルをBとして評価した。その結果を表3及び表4に示す。
ロール加圧の温度を50℃とし、額縁状6インチサイズマスクパターン(中空部2mm、線幅0.5mm)をシリコンウェハ上に載せ、高精度平行露光機(オーク製作所製、「EXM−1172−B−∞」(商品名))で500mJ/cm2で露光し、80℃のホットプレート上で約30秒間放置した。その後、基材(PETフィルム)を取り除き、コンベア現像機(ヤコー社製)を用いて、テトラメチルアンモニウムハイドライド(TMAH)2.38質量%水溶液を現像液とし、温度26℃、スプレー圧0.18MPaの条件でスプレー現像した後、温度25℃の純水にてスプレー圧0.02MPaの条件で水洗して、シリコンウェハ上に、感光性接着剤組成物の接着剤パターンを形成した。形成された接着剤パターンのシリコンウェハとは反対側の面上に、ガラス基板(15mm×40mm×0.55mm)を積層し、0.5MPaで加圧しながら、150℃で10分間圧着し、シリコンウェハ、接着剤パターン及びガラス基板からなり、これらがこの順に積層する積層体のサンプルを得た。得られたサンプルを観察し、未接着部分(空隙)がガラス基板と接着剤パターンとの接着面積に対して20%以下であるものをA、20%以上であるものをBとして、熱圧着性の評価を行った。評価結果を表3及び表4に示す。
接着シートを、シリコンウェハ(6インチ径、厚さ400μm)上に、実施例1〜5及び比較例1〜4の接着シートは温度100℃で、比較例5の接着シートは温度200℃で、接着剤層をシリコンウェハ側にしてロールで加圧(線圧4kgf/cm、送り速度0.5m/分)することにより積層した。
接着シートを、シリコンウェハ(6インチ径、厚さ400μm)上に、実施例1〜5及び比較例1〜4の接着シートは温度50℃で、比較例5の接着シートは温度200℃で、接着剤層をシリコンウェハ側にしてロールで加圧(線圧4kgf/cm、送り速度0.5m/分)することにより積層した。その後、高精度平行露光機で1000mJ/cm2露光し、80℃のホットプレート上で約30秒間放置した。基材(PETフィルム)を取り除き、コンベア現像機を用いて、TMAH2.38質量%水溶液を現像液とし、温度26℃、スプレー圧0.18MPaの条件でスプレー現像した後、温度25℃の純水にてスプレー圧0.02MPaの条件で6分間水洗した。現像後、接着材付きウェハを150℃で1分間乾燥させ、5mm×5mmの大きさに個片化した。
接着シートを、シリコンウェハ(6インチ径、厚さ400μm)上に、実施例1〜5、比較例1〜4の接着シートは温度50℃で、比較例5の接着シートは温度200℃で、接着剤層をシリコンウェハ側にしてロールで加圧(線圧4kgf/cm、送り速度0.5m/分)することにより積層した。
Claims (10)
- (A)アルカリ可溶性樹脂、(B)放射線重合性化合物、(C)光開始剤、(D)1分間半減期温度が150℃以上である熱ラジカル発生剤、及び(E)熱硬化性樹脂を含有する、感光性接着剤組成物であって、
前記(B)放射線重合性化合物が多官能アクリレートであり、
前記(D)熱ラジカル発生剤が(D1)有機過酸化物であり、該(D1)有機過酸化物の添加量は、前記(B)放射線重合性化合物の全量に対し、0.01〜20重量%である、感光性接着剤組成物。 - 前記(E)熱硬化性樹脂がエポキシ樹脂である、請求項1に記載の感光性接着剤組成物。
- 前記(A)アルカリ可溶性樹脂のガラス転移温度が、150℃以下である、請求項1又は2に記載の感光性接着剤組成物。
- 請求項1〜3のいずれか一項に記載の感光性接着剤組成物をフィルム状に成形してなる、フィルム状接着剤。
- 基材と、該基材の一方の面上に設けられた請求項1〜3のいずれか一項に記載の感光性接着剤組成物からなる接着剤層と、を備える、接着シート。
- 請求項4に記載のフィルム状接着剤とダイシングシートとを積層してなる積層構造を有する、接着シート。
- 請求項1〜3のいずれか一項に記載の感光性接着剤組成物からなる接着剤層を被着体上に形成し、該接着剤層をフォトマスクを介して露光し、露光後の前記接着剤層をアルカリ現像液により現像処理することにより形成される、接着剤パターン。
- 半導体ウェハと、該半導体ウェハの一方の面上に設けられた請求項1〜3のいずれか一項に記載の感光性接着剤組成物からなる接着剤層と、を備える、接着剤層付半導体ウェハ。
- 請求項1〜3のいずれか一項に記載の感光性接着剤組成物によって、半導体素子と、半導体素子搭載用支持部材又は他の半導体素子とが接着された構造を有する、半導体装置。
- 請求項1〜3のいずれか一項に記載の感光性接着剤組成物を用いて、半導体素子と、半導体素子搭載用支持部材又は他の半導体素子とを接着する工程を有する、半導体装置の製造方法。
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CN2009801327658A CN102131883A (zh) | 2008-08-27 | 2009-07-30 | 感光性粘接剂组合物、以及使用该组合物的膜状粘接剂、粘接片、粘接剂图形、带有粘接剂层的半导体晶片和半导体装置 |
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CN201310088478.XA CN103257527B (zh) | 2008-08-27 | 2009-07-30 | 感光性粘接剂组合物、膜状粘接剂、粘接片、粘接剂图形、半导体晶片和半导体装置 |
KR1020117003512A KR20110036749A (ko) | 2008-08-27 | 2009-07-30 | 감광성 접착제 조성물, 및 그것을 이용한 필름상 접착제, 접착 시트, 접착제 패턴, 접착제층 부착 반도체 웨이퍼 및 반도체 장치 |
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PCT/JP2009/063585 WO2010024087A1 (ja) | 2008-08-27 | 2009-07-30 | 感光性接着剤組成物、並びにそれを用いたフィルム状接着剤、接着シート、接着剤パターン、接着剤層付半導体ウェハ及び半導体装置 |
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US13/060,685 US20110151195A1 (en) | 2008-08-27 | 2009-07-30 | Photosensitive adhesive composition, and film adhesive, adhesive sheet, adhesive pattern, semiconductor wafer with adhesive layer and semiconductor device using the photosensitive adhesive composition |
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