JP4717051B2 - 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
- JP4717051B2 JP4717051B2 JP2007314899A JP2007314899A JP4717051B2 JP 4717051 B2 JP4717051 B2 JP 4717051B2 JP 2007314899 A JP2007314899 A JP 2007314899A JP 2007314899 A JP2007314899 A JP 2007314899A JP 4717051 B2 JP4717051 B2 JP 4717051B2
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- Prior art keywords
- dicing
- sensitive adhesive
- adhesive layer
- pressure
- die
- Prior art date
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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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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
- C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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- C08G18/8116—Unsaturated isocyanates or isothiocyanates having only one isocyanate or isothiocyanate group esters of acrylic or alkylacrylic acid having only one isocyanate or isothiocyanate group
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- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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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
各実施例2〜15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
i−OA:アクリル酸イソオクチル
i−NA:アクリル酸イソノニル
BA:アクリル酸n−ブチル
LA:アクリル酸ラウリル
AA:アクリル酸
HEA:2−ヒドロキシエチルアクリレート
4HBA:4−ヒドロキシブチルアクリレート
AOI:2−ア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)
T/C:エポキシ系架橋剤(商品名「テトラッドC」、三菱ガス化学社製)
各比較例1〜7については、下記表2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3に示す条件A及び条件Bによりそれぞれ行った。
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 (3)
- 基材上に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、
前記粘着剤層は、
アクリル酸2−エチルヘキシル又はアクリル酸イソオクチルの少なくとも何れかの主モノマーとしてのアクリル酸エステルと、
アクリル酸エステルに対する含有量が10〜30mol%の範囲内であり、アクリル酸2−ヒドロキシエチル又はアクリル酸4−ヒドロキシブチルの少なくとも何れかのヒドロキシル基含有モノマーと、
ヒドロキシル基含有モノマーに対する含有量が70〜90mol%の範囲内であり、2−メタクリロイルオキシエチルイソシアネート又は2−アクリロイルオキシエチルイソシアネートの少なくとも何れかのラジカル反応性炭素−炭素二重結合を有するイソシアネート化合物とを含み構成されるポリマーを含み、かつ該ポリマー100重量部に対して0.1重量部以上の外部架橋剤を含み、
前記ポリマーの重量平均分子量は35万〜100万の範囲内であり、
前記粘着剤層の紫外線照射前の23℃における引張弾性率は0.4〜3.5MPaの範囲内であり、
前記ダイボンドフィルムはエポキシ樹脂を含み構成されることを特徴とするダイシング・ダイボンドフィルム。 - 前記粘着剤層の紫外線照射後の23℃における引張弾性率が7〜100MPa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。
- 前記粘着剤層はアクリル酸を含まないことを特徴とする請求項1又は2に記載のダイシング・ダイボンドフィルム。
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007314899A JP4717051B2 (ja) | 2007-11-08 | 2007-12-05 | ダイシング・ダイボンドフィルム |
KR1020107008461A KR20100049693A (ko) | 2007-11-08 | 2008-10-30 | 다이싱·다이본드 필름 |
KR1020137027287A KR101420993B1 (ko) | 2007-11-08 | 2008-10-30 | 다이싱·다이본드 필름 |
CN2012103610185A CN102911618A (zh) | 2007-11-08 | 2008-10-30 | 切割/芯片接合薄膜 |
US12/741,875 US20100233409A1 (en) | 2007-11-08 | 2008-10-30 | Dicing die-bonding film |
CN2008801150899A CN101855710B (zh) | 2007-11-08 | 2008-10-30 | 切割/芯片接合薄膜 |
PCT/JP2008/069798 WO2009060787A1 (ja) | 2007-11-08 | 2008-10-30 | ダイシング・ダイボンドフィルム |
KR1020107025179A KR101420903B1 (ko) | 2007-11-08 | 2008-10-30 | 다이싱·다이본드 필름 |
DE112008003005T DE112008003005T5 (de) | 2007-11-08 | 2008-10-30 | Klebefolie für das Schneiden von Chips |
TW102141374A TWI488939B (zh) | 2007-11-08 | 2008-11-06 | Cut crystal sticky film |
TW097142877A TWI428419B (zh) | 2007-11-08 | 2008-11-06 | Cut crystal sticky film |
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JP2007291056 | 2007-11-08 | ||
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JP2007314899A JP4717051B2 (ja) | 2007-11-08 | 2007-12-05 | ダイシング・ダイボンドフィルム |
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JP2010093455A Expired - Fee Related JP4718641B2 (ja) | 2007-11-08 | 2010-04-14 | ダイシング・ダイボンドフィルム |
JP2010198049A Withdrawn JP2011040763A (ja) | 2007-11-08 | 2010-09-03 | ダイシング・ダイボンドフィルム |
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CN (2) | CN101855710B (ja) |
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TW (2) | TWI428419B (ja) |
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Also Published As
Publication number | Publication date |
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KR101420903B1 (ko) | 2014-07-16 |
KR20100049693A (ko) | 2010-05-12 |
KR20130122025A (ko) | 2013-11-06 |
US20100233409A1 (en) | 2010-09-16 |
JP4718641B2 (ja) | 2011-07-06 |
TWI428419B (zh) | 2014-03-01 |
DE112008003005T5 (de) | 2010-09-16 |
TW201412930A (zh) | 2014-04-01 |
TW200932865A (en) | 2009-08-01 |
JP2010166091A (ja) | 2010-07-29 |
CN101855710A (zh) | 2010-10-06 |
JP2011040763A (ja) | 2011-02-24 |
KR20100134739A (ko) | 2010-12-23 |
TWI488939B (zh) | 2015-06-21 |
KR101420993B1 (ko) | 2014-07-17 |
CN101855710B (zh) | 2012-11-07 |
JP2009135377A (ja) | 2009-06-18 |
CN102911618A (zh) | 2013-02-06 |
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