JP5287725B2 - 半導体用接着シート及びダイシングテープ一体型半導体用接着シート - Google Patents
半導体用接着シート及びダイシングテープ一体型半導体用接着シート Download PDFInfo
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- JP5287725B2 JP5287725B2 JP2009540093A JP2009540093A JP5287725B2 JP 5287725 B2 JP5287725 B2 JP 5287725B2 JP 2009540093 A JP2009540093 A JP 2009540093A JP 2009540093 A JP2009540093 A JP 2009540093A JP 5287725 B2 JP5287725 B2 JP 5287725B2
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Classifications
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Description
破断伸度(%)=(破断時の接着シートの長さ(mm)−20)/20×100
本発明の接着シートにおいて、硬化前の接着シートの0℃における破断伸度を40%以下にするには、樹脂組成物中の高分子量成分及びフィラーの含有量を調整すればよい。具体的には、樹脂組成物中の高分子量成分の含有量を下げ、かつ、フィラーの含有量を上げることが有効であり、樹脂組成物中の高分子量成分の含有量を65重量以下%及びフィラーの含有量を35重量%以上とすることがより有効であり、高分子量成分の含有量を50〜65重量%及びフィラーの含有量を35〜50重量%とすることが特に有効である。
前記平均粒径は、例えばレーザー光回折法による粒度分布測定により測定することができる。また、平均粒径はメジアン径として求めることができる。
ワニスの調製に用いる溶剤としては、各成分を均一に溶解、混練又は分散できるものであれば制限は無く、従来公知のものを使用することができる。例えば、接着シート作製時の揮発性等を考慮し、メチルエチルケトン、アセトン、メチルイソブチルケトン、2−エトキシエタノール、トルエン、キシレン、ブチルセロソルブ、メタノール、エタノール、2−メトキシエタノールなど比較的低沸点の溶剤を使用するのが好ましい。また、塗膜性を向上させるなどの目的で、ジメチルアセトアミド、ジメチルホルムアミド、N−メチルピロリドン、シクロヘキサノンなど比較的高沸点の溶剤を加えることもできる。
<接着シートの作製>
エポキシ樹脂としてYDCN−700−10(東都化成株式会社製商品名、クレゾールノボラック型エポキシ樹脂、エポキシ当量210)またはYDF−8170C(東都化成株式会社製商品名、BPF型エポキシ樹脂、エポキシ当量160)、フェノール樹脂としてミレックスXLC−LL(三井化学株式会社製商品名、フェノール樹脂、水酸基当量175、吸水率1.8%、350℃における加熱質量減少率4%)またはLF−2882(大日本インキ化学工業株式会社製商品名、フェノールノボラック樹脂)、シランカップリング剤としてA−1160(GE東芝株式会社製商品名、γ―ウレイドプロピルトリエトキシシラン)、フィラーとしてSO−C2(株式会社アドマテック製商品名、シリカ、比表面積7m2/g、平均粒径0.4〜0.6μm)またはアエロジルR972(日本アエロジル株式会社製商品名、シリカ、平均粒径0.016μm)を表1に示す所定量含有する組成物に、シクロヘキサノンを加えて攪拌混合し、さらにビーズミルを用いて90分混練した。
前記実施例1〜3、比較例1〜8で得られた各接着シートに関し、以下の項目について評価を行なった。
(1)硬化前の破断伸度
テンシロン(TOYO BALDWIN製、UTM−III−500)を使用し、チャック間距離20mm、引張り速度3mm/分、温度0℃の条件で、支持体フィルムを剥離した硬化前の厚さ40μmの接着シートを引張り、破断時のシートの長さを測定し、以下の式により破断伸度(%)を求めた。結果を表1に示す。
(2)硬化後の弾性率
動的粘弾性測定装置(レオロジ社製、DVE−V4)を使用し、接着シート(幅4mm、厚さ40μm)を175℃で3時間熱硬化させた後、支持体フィルムを剥離して得られた硬化物に引張り荷重(10g)をかけて、チャック間距離20mm、周波数10Hz、昇温速度3℃/分で25℃から300℃まで測定する温度依存性測定モードで測定した。結果を表1に示す。
オートグラフ(島津製作所製、AGS−1000G)を使用し、支持体フィルムを剥離した接着シートをウェハに80℃の温度で熱ラミネートした後、ウェハ中央部にダイヤモンドカッターで切込みを入れ、ウェハのみを切断した。切断されたウェハを有する接着シート付ウェハを冷却し、オートグラフに取り付け、0℃の状態でエキスパンドを行い、接着シートの切断性を目視観察した。エキスパンド条件は、エキスパンド速度50mm/分、エキスパンド量1mmとする。接着シートを切断できた場合を「○」、切断できなかった場合は「×」として、表1に示す。
上記実施例1〜3及び比較例1〜8の接着シートの接着剤層をそれぞれ半導体ウェハに貼り合せ、必要に応じて支持体フィルムを剥離した後に、接着層を介して半導体ウェハを市販の紫外線硬化型ダイシングテープ(古河電工株式会社製商品名:UC−334EP−110)に貼り合せた。このダイシングテープは基材上に粘着剤層が形成されたものであり、貼り合わせの際には、ダイシングテープの粘着剤層と接着シートの接着剤層とが接合するようにした。続いて、ダイサーを用いて半導体ウェハ及び接着剤層をダイシングした後、ダイシングテープの基材側から紫外線を照射(500mJ/cm2)して、接着剤層と粘着剤層との間を離間させることにより、接着剤層付き半導体素子を得た。得られた接着剤層付き半導体素子を、接着剤層を介して、平均約10μm凹凸のある配線基材上に150℃で0.4×9.8Nの力を3秒間加えながら加熱圧着した。その後、高温加熱する場合には、170℃のホットプレート上で1時間加熱して、ワイヤボンディングと同等の熱履歴を与えた。
Claims (7)
- 重量平均分子量が2万〜100万である高分子量成分、
一次粒子の平均粒径が0.005〜0.1μmであるフィラー、及び
重量平均分子量が400〜10,000であるエポキシ樹脂を含有する樹脂組成物からなる半導体用接着シートであって、
前記樹脂組成物はその総量を100重量%とした場合、前記高分子量成分を65重量%以下、及び前記フィラーを35重量%以上含有し、
硬化前の接着シートの0℃における破断伸度が40%以下であり、硬化後の接着シートの175℃における弾性率が0.1〜10MPaであり、
前記高分子量成分はエポキシ基含有アクリル系共重合体であり、
前記フィラーはシリカであることを特徴とする半導体用接着シート。 - 前記高分子量成分は、Tgが−10〜60℃であることを特徴とする請求項1記載の半導体用接着シート。
- 前記樹脂組成物は、その総量を100重量%とした場合、高分子量成分を50〜65重量%及びフィラーを35〜50重量%含有することを特徴とする請求項1または2に記載の半導体用接着シート。
- 前記一次粒子の平均粒径が0.005〜0.1μmのフィラーを、樹脂組成物中に1〜15重量%含有することを特徴とする請求項1〜3のいずれかに記載の半導体用接着シート。
- 前記樹脂組成物中に重量平均分子量が0.1万〜1万である低分子量ポリマーを含有することを特徴とする請求項1〜4のいずれか一項に記載の半導体用接着シート。
- 前記低分子量ポリマーは、カルボキシル基を末端に有するブタジエンポリマーであることを特徴とする請求項5に記載の半導体用接着シート。
- 請求項1〜6記載のいずれか一項に記載の半導体用接着シートとダイシングテープを積層してなるダイシングテープ一体型半導体用接着シート。
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JP2010100840A (ja) * | 2008-09-24 | 2010-05-06 | Hitachi Chem Co Ltd | 接着剤フィルム及び回路接続材料 |
JP5066231B2 (ja) * | 2010-07-28 | 2012-11-07 | 日東電工株式会社 | フリップチップ型半導体裏面用フィルム、短冊状半導体裏面用フィルムの製造方法、及び、フリップチップ型半導体装置 |
JP5528936B2 (ja) * | 2010-07-28 | 2014-06-25 | 日東電工株式会社 | フリップチップ型半導体裏面用フィルム |
CN103081081B (zh) * | 2010-08-23 | 2016-03-02 | 积水化学工业株式会社 | 粘接片及半导体芯片的安装方法 |
JP2013006899A (ja) * | 2011-06-22 | 2013-01-10 | Hitachi Chemical Co Ltd | 接着フィルム及びこれを用いた半導体装置 |
CN103620742B (zh) * | 2011-07-01 | 2016-05-25 | 古河电气工业株式会社 | 粘接膜、切割芯片接合膜及使用该切割芯片接合膜的半导体加工方法 |
CN102344772A (zh) * | 2011-08-03 | 2012-02-08 | 华烁科技股份有限公司 | 一种高导热绝缘环氧树脂胶及其在led用挠性铝基覆铜板上的应用 |
JP6155931B2 (ja) * | 2013-07-19 | 2017-07-05 | 住友ベークライト株式会社 | 樹脂組成物、接着フィルム、接着シート、ダイシングテープ一体型接着シートおよび電子部品 |
TWI674972B (zh) * | 2013-08-23 | 2019-10-21 | 日商味之素股份有限公司 | 零件封裝用薄膜之製造方法 |
JP6128043B2 (ja) * | 2014-03-31 | 2017-05-17 | 住友ベークライト株式会社 | 半導体用ウエハ加工用粘着テープ |
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JP6876540B2 (ja) * | 2017-06-27 | 2021-05-26 | 日東電工株式会社 | ダイシングテープ一体型接着性シート |
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JP5340580B2 (ja) * | 2006-11-13 | 2013-11-13 | 日立化成株式会社 | 半導体用接着シート及びダイシング一体型半導体用接着シート |
JP4430085B2 (ja) * | 2007-03-01 | 2010-03-10 | 日東電工株式会社 | ダイシング・ダイボンドフィルム |
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- 2008-11-07 EP EP08847953A patent/EP2219212A4/en not_active Withdrawn
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- 2008-11-07 KR KR1020107008099A patent/KR101557171B1/ko active IP Right Grant
- 2008-11-07 CN CN201210003464.9A patent/CN102543809B/zh active Active
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Patent Citations (5)
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WO2000078887A1 (fr) * | 1999-06-18 | 2000-12-28 | Hitachi Chemical Company, Ltd. | Adhesif, element adhesif, substrat de circuit pour montage de semi-conducteur presentant un element adhesif, et dispositif a semi-conducteur contenant ce dernier |
JP2001302998A (ja) * | 2000-02-15 | 2001-10-31 | Hitachi Chem Co Ltd | 接着フィルムおよびその用途 |
JP2003041206A (ja) * | 2001-07-30 | 2003-02-13 | Hitachi Chem Co Ltd | 接着シート、その使用方法及び半導体装置 |
JP2007284670A (ja) * | 2006-03-22 | 2007-11-01 | Hitachi Chem Co Ltd | 接着フィルム及びこれを用いた半導体装置 |
JP2007288174A (ja) * | 2006-03-24 | 2007-11-01 | Hitachi Chem Co Ltd | 半導体用接着シート及びダイシングテープ一体型半導体用接着シート |
Also Published As
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US9969909B2 (en) | 2018-05-15 |
US20100266842A1 (en) | 2010-10-21 |
KR101557171B1 (ko) | 2015-10-02 |
MY151971A (en) | 2014-07-31 |
TW200933722A (en) | 2009-08-01 |
WO2009060927A1 (ja) | 2009-05-14 |
CN102543809B (zh) | 2015-11-04 |
KR20100085035A (ko) | 2010-07-28 |
EP2219212A4 (en) | 2012-07-11 |
JPWO2009060927A1 (ja) | 2011-03-24 |
CN102543809A (zh) | 2012-07-04 |
EP2219212A1 (en) | 2010-08-18 |
CN101821841A (zh) | 2010-09-01 |
TWI390621B (zh) | 2013-03-21 |
SG185968A1 (en) | 2012-12-28 |
CN101821841B (zh) | 2013-05-08 |
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