JP6589638B2 - 接着剤組成物、その硬化物を含む半導体装置およびそれを用いた半導体装置の製造方法 - Google Patents
接着剤組成物、その硬化物を含む半導体装置およびそれを用いた半導体装置の製造方法 Download PDFInfo
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- JP6589638B2 JP6589638B2 JP2015560433A JP2015560433A JP6589638B2 JP 6589638 B2 JP6589638 B2 JP 6589638B2 JP 2015560433 A JP2015560433 A JP 2015560433A JP 2015560433 A JP2015560433 A JP 2015560433A JP 6589638 B2 JP6589638 B2 JP 6589638B2
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- Die Bonding (AREA)
Description
N−メチル−2−ピロリドン(以下、NMPとする)に溶解して濃度0.1重量%の溶液を調整して、測定サンプルとした。下に示す構成のGPC装置Waters2690(Waters(株)製)を用いて、ポリスチレン換算の重量平均分子量を算出した。GPC測定条件は、移動層をLiClとリン酸をそれぞれ濃度0.05mol/Lで溶解したNMPとし、流量を0.4mL/分とした。また、カラムはカラムオーブンを用いて40℃に加温した。
検出器:Waters996
システムコントローラー:Waters2690
カラム:TOSOH TSK−GEL α−4000
カラム:TOSOH TSK−GEL α−2500。
SEM(走査型電子顕微鏡、日本電子社製JSM−6510A)により100個の粒子の粒子径を観察し、その平均値を平均粒子径とした。観察において、粒子が円として観察された場合はその直径を粒子径とし、楕円等の形状として観察された場合は、粒子の輪郭において最も距離が長くなる区間の長さを粒子径とした。
接着剤組成物のアライメントマークの認識の評価は、以下のようにして行った。各実施例および比較例で作製した接着剤フィルムから保護フィルムを剥離した後、該接着剤組成物フィルムを、ラミネート装置((株)名機製作所製、MVLP600)を用いて、銅ピラーバンプ付きTEGチップ((株)ウォルツ製、WALTS−TEG CC80−0101JY)の銅ピラーバンプ形成面に貼り合せた。そして、基材フィルムを剥離し、接着剤組成物付きの評価チップを作製した。該評価チップは10個作製した。その後、フリップチップボンディング装置(東レエンジニアリング(株)製、FC−3000WS)のカメラによって、チップ上のパターン認識性評価を行った。10個作製した評価チップのうち、自動認識が可能であった数を記録した。
上記のようにして、アライメントマークの認識評価をした後、被着体となる基板((株)ウォルツ製、WALTS−KIT CC80−0102JY[MAP]_ModelI(Cu+OSP仕様))にフリップチップボンディングを行った。フリップチップボンディングの条件は、140℃に加熱されたボンディングステージ上に基板を置き、温度140℃、圧力150N/チップ、時間1秒の条件で仮圧着した後、温度250℃、圧力150Nの条件で時間を5秒にして本圧着を行った。得られた半導体装置を超音波映像装置((株)日立パワーソリューションズ製、FS300III)を用いて、ボイドの観察を行った。ボイドの評価は、チップ面積に占めるボイドの割合を記録した。なお、結果の下限は1%以下、結果の上限は10%以上とした。
上記のようにして、ボイドの評価を行った後、半導体装置を断面研磨し接合箇所を露出させた。その後、光学顕微鏡にて接合形状を観察した。図1のように、銅ピラーバンプ100のハンダ101が基板の銅配線102の側面の両側が濡れている場合をA、片側のみ濡れている場合をB、どちらの側面も濡れていないが配線上は濡れている場合をC、どちらの側面も濡れず、配線上にも接着剤組成物103の噛み込みがあるものをDとした(図1)。
乾燥窒素気流下、1,3−ビス(3−アミノフェノキシ)ベンゼン 4.82g(0.0165モル)、3,3’−ジアミノ−4,4’−ジヒドロキシジフェニルスルホン 3.08g(0.011モル)、1,3−ビス(3−アミノプロピル)テトラメチルジシロキサン 4.97g(0.02モル)、および、末端封止剤としてアニリン0.47g(0.005モル)をNMP130gに溶解した。ここに2,2−ビス{4−(3,4−ジカルボキシフェノキシ)フェニル}プロパン二無水物 26.02g(0.05モル)をNMP20gとともに加えて、25℃で1時間反応させ、次いで50℃で4時間撹拌した。その後、180℃で5時間撹拌した。撹拌終了後、溶液を水3Lに投入し、ろ過して沈殿を回収し、水で3回洗浄した後、真空乾燥機を用いて80℃20時間乾燥した。得られたポリマー固体の赤外吸収スペクトルを測定したところ、1780cm−1付近、1377cm−1付近にポリイミドに起因するイミド構造の吸収ピークが検出された。また、得られたポリイミドの重量平均分子量は18000であった。
(A)成分
1256(商品名、フェノキシ樹脂、重量平均分子量50000、三菱化学(株)製)
4250(商品名、フェノキシ樹脂、重量平均分子量60000、三菱化学(株)製)
(B)成分
YL−980(商品名、液状エポキシ化合物、重量平均分子量370、三菱化学(株)製)
N−865(商品名、固形状エポキシ化合物、重量平均分子量850、DIC(株)製)
1032H60(商品名、固形状エポキシ化合物、重量平均分子量525、三菱化学(株)製)
(C)成分
KR−120(商品名、酸変性ロジン100%、荒川化学工業(株)製)
(D)成分
Sciqas0.15μmフェニルシラン処理(商品名、シリカ、平均粒子径150nm、フェニルシランカップリング表面処理、すなわちフェニル基を有するアルコキシシランを表面に有する、堺化学工業(株)製)
YA050C(商品名、シリカ、平均粒子径50nm、フェニルシランカップリング表面処理、すなわちフェニル基を有するアルコキシシランを表面に有する、(株)アドマテックス製)
(E)成分
2MAOK−PW(商品名、イミダゾール系硬化促進剤粒子、四国化成工業(株)製)
(F)その他
アジピン酸(フラックス)
Sciqas0.15μm(商品名、シリカ、平均粒子径150nm、未表面処理、堺化学工業(株)製)
実施例1〜9および比較例1〜3
(1)接着剤組成物フィルムの作製方法
表1に示される(A)〜(F)成分を表1に記載の組成比で混合して、接着剤組成物ワニスを作製した。有機溶剤として、シクロヘキサノンを使用し、溶媒以外の添加物を固形分として、固形分濃度が53%である接着剤組成物ワニスとした。作製した接着剤組成物ワニスを、スリットダイコーター(塗工機)を用いて、剥離性基材である厚さ38μmのポリエチレンテレフタレートフィルムの表面処理面に塗布し、100℃で10分間乾燥を行った。これにより得られた乾燥後の厚みが30μmの接着剤フィルム上にダイシングテープ(T1902−90、ポリオレフィン基材、古河電気工業(株)製)の粘着面を貼り合わせ、基材フィルムと保護フィルムに挟まれた構造の接着剤組成物フィルムを得た。この際、ダイシングテープが基材フィルム、ポリエチレンテレフタレートフィルムが保護フィルムとして機能する。得られた接着剤組成物フィルムを用いて、前記のようにアライメントマークの認識、ボイドの評価、接合部のハンダ濡れ性評価を実施した。結果を表1に示す。
101:ハンダ
102:銅配線
103:接着剤組成物
Claims (7)
- (A)高分子化合物、(B)重量平均分子量が100以上3,000以下であるエポキシ化合物、(C)フラックスおよび(D)フェニル基を有するアルコキシシランを表面に有する平均粒子径が30〜200nmである無機粒子を含有する接着剤組成物であって、(C)フラックスが酸変性ロジンを含有し、前記(A)高分子化合物が、重量平均分子量10,000以上100,000以下のフェノキシ樹脂であることを特徴とする接着剤組成物。
- 前記(C)フラックスにおける酸変性ロジンの含有量が50質量%以上100質量%以下である請求項1に記載の接着剤組成物。
- 前記(C)フラックスにおける酸変性ロジンの含有量が、前記(D)フェニル基を有するアルコキシシランを表面に有する平均粒子径が30〜200nmである無機粒子100質量部に対し5〜35質量部である請求項1または2に記載の接着剤組成物。
- 更に(E)硬化促進剤を含有する請求項1〜3のいずれかに記載の接着剤組成物。
- 前記(D)フェニル基を有するアルコキシシランを表面に有する平均粒子径が30〜200nmである無機粒子の含有量が、接着剤組成物の全量に対して45〜70質量%である請求項1〜4のいずれかに記載の接着剤組成物。
- 請求項1〜5のいずれかに記載の接着剤組成物の硬化物を含む半導体装置。
- 第一の回路部材と第二の回路部材の間に請求項1〜5のいずれかに記載の接着剤組成物を介在させ、前記第一の回路部材と前記第二の回路部材を電気的に接続する半導体装置の製造方法。
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| TWI661022B (zh) * | 2018-05-30 | 2019-06-01 | 律勝科技股份有限公司 | 接著劑組成物及其接著劑與硬化物 |
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| JP5123341B2 (ja) * | 2010-03-15 | 2013-01-23 | 信越化学工業株式会社 | 接着剤組成物、半導体ウエハ保護膜形成用シート |
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| JP6047888B2 (ja) | 2012-02-24 | 2016-12-21 | 日立化成株式会社 | 半導体用接着剤及び半導体装置の製造方法 |
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| CN107001895A (zh) | 2017-08-01 |
| JPWO2016093114A1 (ja) | 2017-09-14 |
| US20170362472A1 (en) | 2017-12-21 |
| MY180588A (en) | 2020-12-03 |
| KR20170092594A (ko) | 2017-08-11 |
| WO2016093114A1 (ja) | 2016-06-16 |
| KR102360805B1 (ko) | 2022-02-09 |
| SG11201704434RA (en) | 2017-07-28 |
| PH12017500832A1 (en) | 2017-10-09 |
| CN107001895B (zh) | 2019-11-19 |
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