JP2009194303A - ダイシング・ダイボンドフィルム - Google Patents
ダイシング・ダイボンドフィルム Download PDFInfo
- Publication number
- JP2009194303A JP2009194303A JP2008036010A JP2008036010A JP2009194303A JP 2009194303 A JP2009194303 A JP 2009194303A JP 2008036010 A JP2008036010 A JP 2008036010A JP 2008036010 A JP2008036010 A JP 2008036010A JP 2009194303 A JP2009194303 A JP 2009194303A
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- Prior art keywords
- dicing
- adhesive layer
- film
- die
- sensitive adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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Abstract
【解決手段】 本発明のダイシング・ダイボンドフィルムは、基材上に放射線硬化型の粘着剤層を有するダイシングフィルムと、該粘着剤層上に設けられたダイボンドフィルムとを有するダイシング・ダイボンドフィルムであって、前記粘着剤層における粘着剤はアクリル系ポリマーを含み構成され、前記アクリル系ポリマーの酸価が0.01〜1であり、ヨウ素価が5〜10の範囲内であることを特徴とする。
【選択図】 図1
Description
本発明の実施の形態について、図1及び図2を参照しながら説明する。図1は、本実施の形態に係るダイシング・ダイボンドフィルムを示す断面模式図である。図2は、本実施の形態に係る他のダイシング・ダイボンドフィルムを示す断面模式図である。但し、説明に不要な部分は省略し、また、説明を容易にする為に拡大又は縮小等して図示した部分がある。
次に、本発明のダイシング・ダイボンドフィルムの製造方法について、ダイシング・ダイボンドフィルム10を例にして説明する。先ず、基材1は、従来公知の製膜方法により製膜することができる。当該製膜方法としては、例えばカレンダー製膜法、有機溶媒中でのキャスティング法、密閉系でのインフレーション押出法、Tダイ押出法、共押出し法、ドライラミネート法等が例示できる。
本発明のダイシング・ダイボンドフィルム10、11は、ダイボンドフィルム3、3’上に任意に設けられたセパレータを適宜に剥離して、次の様に使用される。以下では、図3を参照しながらダイシング・ダイボンドフィルム11を用いた場合を例にして説明する。
<ダイシングフィルムの作製>
冷却管、窒素導入管、温度計および撹拌装置を備えた反応容器に、アクリル酸2−エチルヘキシル(以下、「2EHA」という。)88.8部、アクリル酸−2−ヒドロキシエチル(以下、「HEA」という。)11.2部、過酸化ベンゾイル0.2部及びトルエン65部を入れ、窒素気流中で61℃にて6時間重合処理をし、重量平均分子量85万のアクリル系ポリマーAを得た。重量平均分子量は下記の通りである。2EHAとHEAとのモル比は、100mol対20molとした。
アクリル酸エチル−メチルメタクリレートを主成分とするアクリル酸エステル系ポリマー(根上工業(株)製、商品名;パラクロンW−197CM)100部に対して、エポキシ樹脂1(JER(株)製、エピコート1004)59部、エポキシ樹脂2(JER(株)製、エピコート827)53部、フェノール樹脂(三井化学(株)製、商品名:ミレックスXLC−4L)121部、球状シリカ(アドマテックス(株)製、商品名;SO−25R)222部をメチルエチルケトンに溶解して、濃度23.6重量%となる様に調製した。
重量平均分子量Mwの測定は、GPC(ゲル・パーミエーション・クロマトグラフィー)により行った。測定条件は下記の通りである。尚、重量平均分子量はポリスチレン換算により算出した。
測定装置:HLC−8120GPC(製品名、東ソー社製)
カラム:TSKgel GMH−H(S)×2(品番、東ソー社製)
流量:0.5ml/min
注入量:100μl
カラム温度:40℃
溶離液:THF
注入試料濃度:0.1重量%
検出器:示差屈折計
アクリル系ポリマーA’の酸価は、JIS K 0070−1992(電位差滴定法)に準じて評価を行った。即ち、乾燥させたアクリル系ポリマーA’約3gにアセトン100mlを加え、撹拌して溶解させた。これに水25mlを加え撹拌した。この溶液を0.05mol/lの水酸化ナトリウム溶液で滴定を行った。試料1gを中和するのに必要な水酸化カリウムのmg数を酸価値として表した。
アクリル系ポリマーA’の水酸基価は、JIS K 0070−1992(アセチル化法)に準じて評価を行った。即ち、乾燥させたアクリル系ポリマーA’約3gにアセチル化試薬10mlを入れ、更に溶剤としてピリジン30ml及びジメチルホルムアミド30mlを加えた。この溶液を、冷却器を備えたウォーターバス中(95〜100℃)で1時間30分加熱を行った。更に、水3mlを加えた後、10分間加熱を行った。
アクリル系ポリマーA’の酸価は、JIS K 0070−1992に準じて評価を行った。即ち、乾燥させたアクリル系ポリマーA’約3gにクロロホルム30mlを加え溶解させた。これにウィイス液25mlを加え撹拌した。その後、栓をして密閉状態にし、23℃で暗所に1時間放置した。この溶液にヨウ化カリウム溶液20ml及び水100mlを加え撹拌した。この溶液を0.1mol/lのチオ硫酸ナトリウム溶液で滴定し、溶液が微黄色になったら、でんぷん溶液を数滴加え、青色が消えるまで滴定を行った。試料100gにハロゲンを反応させたとき、結合するハロゲンの量をヨウ素のg数に換算した値をヨウ素価値として表した。
各実施例2〜9については、下記表1に示す組成及び含有量に変更したこと以外は、前記実施例1と同様にしてダイシング・ダイボンドフィルムを作製した。
各比較例1〜4については、下記表1に示す組成及び含有量に変更したこと以外は、前記実施例1と同様にしてダイシング・ダイボンドフィルムを作製した。
2EHA:アクリル酸2−エチルヘキシル
HEA:2−ヒドロキシエチルアクリレート
AA:アクリル酸
MOI:2−メタクリロイルオキシエチルイソシアネート
C/L:ポリイソシアネート化合物(商品名「コロネートL」、日本ポリウレタン(株)製)
各実施例及び比較例のそれぞれダイシング・ダイボンドフィルムを用いて、以下の要領で、実際に半導体ウェハのダイシングを行い、各ダイシング・ダイボンドフィルムの性能を評価した。
研削装置:ディスコ社製 DFG−8560
半導体ウェハ:8インチ径(厚さ0.6mmから0.15mmに裏面研削)
貼り付け装置:日東精機製、MA−3000II
貼り付け速度計:10mm/min
貼り付け圧力:0.15MPa
貼り付け時のステージ温度:40℃
ダイシング装置:ディスコ社製、DFD−6361
ダイシングリング:2−8−1(ディスコ社製)
ダイシング速度:80mm/sec
ダイシングブレード:
Z1;ディスコ社製2050HEDD
Z2;ディスコ社製2050HEBB
ダイシングブレード回転数:
Z1;40,000rpm
Z2;40,000rpm
ブレード高さ:
Z1;0.215mm(半導体ウェハの厚みによる(ウェハ厚みが75μmの場合、0.170mm))
Z2;0.085mm
カット方式:Aモード/ステップカット
ウェハチップサイズ:1.0mm角
各実施例及び比較例のそれぞれダイシング・ダイボンドフィルムを用いて、以下の要領で、実際に半導体ウェハのダイシングを行った後にピックアップを行い、各ダイシング・ダイボンドフィルムの性能を評価した。
研削装置:ディスコ社製 DFG−8560
半導体ウェハ:8インチ径(厚さ0.6mmから0.075mmに裏面研削)
貼り付け装置:日東精機製、MA−3000II
貼り付け速度計:10mm/min
貼り付け圧力:0.15MPa
貼り付け時のステージ温度:40℃
ダイシング装置:ディスコ社製、DFD−6361
ダイシングリング:2−8−1(ディスコ社製)
ダイシング速度:80mm/sec
ダイシングブレード:
Z1;ディスコ社製2050HEDD
Z2;ディスコ社製2050HEBB
ダイシングブレード回転数:
Z1;40,000rpm
Z2;40,000rpm
ブレード高さ:
Z1;0.170mm(半導体ウェハの厚みによる(ウェハ厚みが75μmの場合、0.170mm))
Z2;0.085mm
カット方式:Aモード/ステップカット
ウェハチップサイズ:10.0mm角
紫外線(UV)照射装置:日東精機(商品名、UM−810製)
紫外線照射積算光量:300mJ/cm2
尚、紫外線照射はポリオレフィンフィルム側から行った。
ピックアップ条件については、下記表2に示す条件A及び条件Bによりそれぞれ行った。
ダイシングフィルムとダイボンドフィルムを貼り合わせたダイシング・ダイボンドフィルムを0℃にて2週間保存した(相対湿度 %)。その後、前記と同様の条件下でピックアップの評価を行った。条件A及びBで行ったときの成功率が共に100%の場合を◎とし、条件Aで行ったときの成功率が100%であり、かつ、条件Bで行ったときの成功率が100%でなかった場合を○とし、条件A及びB共に成功率が100%でなかった場合を×とした。結果を表1に示す。
保存期間の温度を23℃に変更したこと以外は、前記保存性試験1と同様にしてピックアップの評価を行った。結果を表3に示す。
保存期間の温度を40℃に変更したこと以外は、前記保存性試験1と同様にしてピックアップの評価を行った。結果を表3に示す。
測定条件として、サンプルサイズとして初期長さ10mm、断面積0.1〜0.5mm2にし、測定温度23℃、チャック間距離50mm、引張速度50mm/minでMD方向又はTD方向に引張試験を行い、各方向に於けるサンプルの伸びの変化量(mm)を測定した。その結果、得られたS−S曲線の初期の立ち上がりの部分に接線を引き、その接線が100%伸びに相当するときの引張強度を基材フィルムの断面積で割り、引張弾性率とした。尚、紫外線照射後の引張弾性率の測定については、前記照射条件により紫外線をポリオレフィンフィルム側から照射した後に行った。
ダイシングフィルムをダイシングリングから剥がし、ダイシングリングに糊残りが発生しているか否かを目視により確認した。糊残りが確認されたものを×とし、確認されなかったものを○とした。
2 粘着剤層
3 ダイボンドフィルム
4 半導体ウェハ
5 半導体チップ
6 被着体
7 ボンディングワイヤー
8 封止樹脂
9 スペーサ
10、11 ダイシング・ダイボンドフィルム
Claims (2)
- 基材上に放射線硬化型の粘着剤層を有するダイシングフィルムと、該粘着剤層上に設けられたダイボンドフィルムとを有するダイシング・ダイボンドフィルムであって、
前記粘着剤層における粘着剤はアクリル系ポリマーを含み構成され、
前記アクリル系ポリマーの酸価が0.01〜1であり、ヨウ素価が5〜10の範囲内であることを特徴とするダイシング・ダイボンドフィルム。 - 前記アクリル系ポリマーの水酸基価が7〜30の範囲内であることを特徴とする請求項1に記載のダイシング・ダイボンドフィルム。
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JP2008036010A JP4553400B2 (ja) | 2008-02-18 | 2008-02-18 | ダイシング・ダイボンドフィルム |
TW098104533A TWI405835B (zh) | 2008-02-18 | 2009-02-12 | Cut crystal sticky film |
TW101117275A TW201241143A (en) | 2008-02-18 | 2009-02-12 | Dicing die-bonding film |
TW101136774A TWI408197B (zh) | 2008-02-18 | 2009-02-12 | Cut crystal sticky film |
EP09152780A EP2090633A1 (en) | 2008-02-18 | 2009-02-13 | Dicing Die-Bonding Film |
KR1020090012946A KR100941815B1 (ko) | 2008-02-18 | 2009-02-17 | 다이싱·다이본드 필름 |
US12/372,590 US20090209089A1 (en) | 2008-02-18 | 2009-02-17 | Dicing die-bonding film |
CN2009100064286A CN101515564B (zh) | 2008-02-18 | 2009-02-18 | 具备切割膜和芯片焊接膜的膜 |
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JP2011060848A (ja) * | 2009-09-07 | 2011-03-24 | Nitto Denko Corp | 熱硬化型ダイボンドフィルム、ダイシング・ダイボンドフィルム、及び、半導体装置 |
JP2011091363A (ja) * | 2009-09-28 | 2011-05-06 | Nitto Denko Corp | 半導体装置用フィルム |
JP2011103440A (ja) * | 2009-10-14 | 2011-05-26 | Nitto Denko Corp | 熱硬化型ダイボンドフィルム |
JP2011089009A (ja) * | 2009-10-22 | 2011-05-06 | Hitachi Maxell Ltd | 放射線硬化性粘着剤組成物、それを用いたダイシング用粘着フィルム、及び切断片の製造方法 |
JP2011129786A (ja) * | 2009-12-18 | 2011-06-30 | Furukawa Electric Co Ltd:The | ウエハ加工用テープ及びその製造方法 |
JP2011216734A (ja) * | 2010-03-31 | 2011-10-27 | Furukawa Electric Co Ltd:The | 半導体ウエハ加工用粘着シート |
JP2011213922A (ja) * | 2010-03-31 | 2011-10-27 | Furukawa Electric Co Ltd:The | 半導体ウエハ加工用粘着シート |
WO2011125683A1 (ja) * | 2010-03-31 | 2011-10-13 | 古河電気工業株式会社 | 半導体ウエハ加工用粘着シート |
US8722517B2 (en) | 2010-04-19 | 2014-05-13 | Nitto Denko Corporation | Dicing tape-integrated film for semiconductor back surface |
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JP2011233718A (ja) * | 2010-04-28 | 2011-11-17 | Maxell Sliontec Ltd | ダイシング用粘着フィルム、及び切断片の製造方法 |
JP2013073975A (ja) * | 2011-09-26 | 2013-04-22 | Furukawa Electric Co Ltd:The | 半導体ウエハ加工用テープ |
JP2013072036A (ja) * | 2011-09-28 | 2013-04-22 | Furukawa Electric Co Ltd:The | 脆性ウェハ加工用粘着テープ及びそれを用いた研削方法 |
WO2014050763A1 (ja) * | 2012-09-27 | 2014-04-03 | 古河電気工業株式会社 | 放射線硬化型ダイシング用粘着テープ |
JP5294365B1 (ja) * | 2012-09-27 | 2013-09-18 | 古河電気工業株式会社 | 放射線硬化型ダイシング用粘着テープ |
JP5828990B2 (ja) * | 2013-09-30 | 2015-12-09 | リンテック株式会社 | 樹脂膜形成用複合シート |
KR20160018848A (ko) * | 2013-09-30 | 2016-02-17 | 린텍 가부시키가이샤 | 수지막 형성용 복합 시트 |
KR101634064B1 (ko) | 2013-09-30 | 2016-06-27 | 린텍 가부시키가이샤 | 수지막 형성용 복합 시트 |
JPWO2015046529A1 (ja) * | 2013-09-30 | 2017-03-09 | リンテック株式会社 | 樹脂膜形成用複合シート |
JP2015111619A (ja) * | 2013-12-06 | 2015-06-18 | Dic株式会社 | 熱伝導シート、物品及び電子部材 |
JP2014123743A (ja) * | 2013-12-27 | 2014-07-03 | Nitto Denko Corp | ダイシングテープ一体型半導体裏面用フィルム |
JP2015008307A (ja) * | 2014-08-07 | 2015-01-15 | 日東電工株式会社 | 熱硬化型ダイボンドフィルム、ダイシング・ダイボンドフィルム、及び、半導体装置 |
Also Published As
Publication number | Publication date |
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TWI405835B (zh) | 2013-08-21 |
JP4553400B2 (ja) | 2010-09-29 |
KR100941815B1 (ko) | 2010-02-10 |
TWI408197B (zh) | 2013-09-11 |
TW201302954A (zh) | 2013-01-16 |
KR20090089264A (ko) | 2009-08-21 |
CN101515564B (zh) | 2011-07-27 |
TW201241143A (en) | 2012-10-16 |
CN101515564A (zh) | 2009-08-26 |
EP2090633A1 (en) | 2009-08-19 |
US20090209089A1 (en) | 2009-08-20 |
TW201000585A (en) | 2010-01-01 |
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