JP2007324456A - ダイシング用粘着シート、及びそれを用いた被切断体の加工方法 - Google Patents
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- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
即ち、本発明のダイシング用粘着シートによれば、基材として前記構造式(A)が主たる構成単位としてランダムに含まれるブロック(I)と、前記構造式(B)が主たる構成単位としてランダムに含まれるブロック(II)とのランダム共重合体ブロックを含み構成されるものを用いるので、基材の結晶化の度合を制御することが可能になる。その結果、糸状屑の発生の抑制と、エキスパンド性とのバランスに優れたダイシング用粘着シートを提供することができる。
基材として、JSR(株)製の「商品名:RBフィルム(厚さ100μm)」を使用した。前記基材は、水添ポリブタジエンフィルムであり、前記構造式(A)を主たる構成成分とするブロック(I)と、前記構造式(B)を主たる構成成分とするブロック(II)の、フィルムポリマー全体としての構成比が重量比で 50:50 である。ブロック(I)内に於ける前記構造式(A)と前記構造式(B)の含有比率は、重量比で(A):(B)=80:20であり、ブロック(II)内に於ける前記構造式(A)と前記構造式(B)の含有比率は、重量比で(A):(B)=20:80である。X線回折により測定した基材の結晶化度は、30%であった。
本比較例に於いては、基材として、エチレン−メタクリル酸共重合物(MFR=2.0)をTダイ押出し法により厚さ100μmとなるように製膜した基材フィルムを用いたこと以外は、実施例1と同様にして紫外線硬化型ダイシング用粘着シートを作製した。
本比較例に於いては、基材として三菱化学(株)製のオレフィン系熱可塑性エラストマー「商品名:ゼラス5053」(MFR=6.8)をTダイ押出し法により厚さ100μmとなるように製膜した基材フィルムを用いたこと以外は、実施例1と同様にして紫外線硬化型ダイシング用粘着シートを作製した。
実施例及び比較例で得られたそれぞれのダイシング用粘着シートを下記の方法により評価した。
ダイシング用粘着シートに、厚さ350μmの6インチ半導体ウエハをマウントし、以下の条件でダイシングした。
ダイサー:DISCO社製 DFD−651
ブレード:DISCO社製 NBC−ZH2050 27HEDD
ブレード回転数:45,000rpm
ダイシング速度:100mm/秒
ダイシング深さ:基材フィルムに対して30μm
ダイシングサイズ:2.5mm×2.5mm
カットモード:ダウンカット
ダイシング後、ダイシング用粘着シートに対し、UV照射機によりUV照射をした。その後、ダイボンダーにより、以下の条件でエキスパンドを行なった。
ダイボンダー:NECマシナリー社製 GPS−100
内リング形状:Eベアリングタイプ
引落し量:7mm、12mm
下記表1から分かるように、実施例1のダイシング用粘着シートでは糸状屑が発生しないことが確認された。また、エキスパンドの際にダイシング用粘着シートが破断しないことも確認された。即ち、実施例1に係るダイシング用粘着シートは糸状屑の発生を抑制できると共に、エキスパンド性にも優れていることが分かった。これに対し、比較例1のダイシング用粘着シートでは、引き落とし量が7mmの場合には破断しなかったが、引き落とし量12mmの場合では破断した。更に、糸状屑も発生していることが確認された。また、比較例2のダイシング用粘着シートでは糸状屑は発生しなかったが、エキスパンドの際には基材フィルムが破断していることが確認された。
11 基材フィルム(基材)
12 粘着剤層
13 セパレータ
Claims (13)
- 前記ブロック(I)又はブロック(II)の含有量は、それぞれ前記重合体の重量に対し30〜70重量%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用粘着シート。
- 前記ブロック(I)は、前記構造式(A)で表される構成単位と、前記構造式(B)で表される構成単位とのランダム共重合体ブロックであり、
前記構造式(A)で表される構成単位の含有量が65〜95重量%の範囲内であり、かつ、前記構造式(B)で表される構成単位の含有量が5〜35重量%の範囲内であることを特徴とする請求項1又は2に記載のダイシング用粘着シート。 - 前記ブロック(II)は、前記構造式(A)で表される構成単位と、前記構造式(B)で表される構成単位とのランダム共重合体ブロックであり、
前記構造式(A)で表される構成単位の含有量が5〜35重量%の範囲内であり、かつ、前記構造式(B)で表される構成単位の含有量が65〜95重量%の範囲内であることを特徴とする請求項1〜3の何れか1項に記載のダイシング用粘着シート。 - 前記基材の結晶化度が10〜50重量%であることを特徴とする請求項1〜4の何れか1項に記載のダイシング用粘着シート。
- 前記基材は単層フィルムからなり、前記重合体を全組成物に対し50重量%以上含有していることを特徴とする請求項1〜5の何れか1項に記載のダイシング用粘着シート。
- 前記基材は多層フィルムからなり、当該多層フィルムの少なくとも1層が、前記重合体を全組成物に対し50重量%以上含有していることを特徴とする請求項1〜6の何れか1項に記載のダイシング用粘着シート。
- 前記粘着剤層は放射線硬化型粘着剤を含み構成されることを特徴とする請求項1〜7の何れか1項に記載のダイシング用粘着シート。
- 前記基材は、前記ブロック(I)の主原料モノマーとしての1,3−ブタジエンと、前記ブロック(II)の主原料モノマーとしての1,2−ブタジエンとを重合させた後に水添して得られたものであることを特徴とする請求項1〜8の何れか1項に記載のダイシング用粘着シート。
- 前記ダイシングを行った後、前記ダイシング用粘着シートをエキスパンドして、切断後の被切断体小片を該ダイシング用粘着シートからピックアップすることを特徴とする請求項10に記載の被切断体の加工方法。
- 前記被切断体として半導体素子を用いることを特徴とする請求項10又は11に記載の被切断体の加工方法。
- 請求項10〜12の何れか1項に記載の被切断体の加工方法により得られたものであることを特徴とする被切断体小片。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006154717A JP4925173B2 (ja) | 2006-06-02 | 2006-06-02 | ダイシング用粘着シート、及びそれを用いた被切断体の加工方法 |
TW96119459A TW200808934A (en) | 2006-06-02 | 2007-05-31 | Pressure-sensitive adhesive sheet for dicing and method for processing processed material using the same |
DE200760003253 DE602007003253D1 (de) | 2006-06-02 | 2007-05-31 | PSA-Folie zum Zerschneiden und Verarbeitungsverfahren von daraus hergestellten Produkten |
EP20070010806 EP1862494B1 (en) | 2006-06-02 | 2007-05-31 | Pressure-sensitive adhesive sheet for use in dicing and method of processing products worked with it |
KR1020070054114A KR101046669B1 (ko) | 2006-06-02 | 2007-06-01 | 다이싱용 감압 접착 시트, 및 상기 시트를 사용하여 가공재를 가공하는 방법 |
CN2007101082136A CN101081968B (zh) | 2006-06-02 | 2007-06-04 | 切割用压敏粘合剂片材和用其处理加工材料的方法 |
US11/757,452 US8025968B2 (en) | 2006-06-02 | 2007-06-04 | Pressure-sensitive adhesive sheet for dicing and method for processing processed material using the same |
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JP2006154717A JP4925173B2 (ja) | 2006-06-02 | 2006-06-02 | ダイシング用粘着シート、及びそれを用いた被切断体の加工方法 |
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JP2007324456A true JP2007324456A (ja) | 2007-12-13 |
JP4925173B2 JP4925173B2 (ja) | 2012-04-25 |
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JP2006154717A Expired - Fee Related JP4925173B2 (ja) | 2006-06-02 | 2006-06-02 | ダイシング用粘着シート、及びそれを用いた被切断体の加工方法 |
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US (1) | US8025968B2 (ja) |
EP (1) | EP1862494B1 (ja) |
JP (1) | JP4925173B2 (ja) |
KR (1) | KR101046669B1 (ja) |
CN (1) | CN101081968B (ja) |
DE (1) | DE602007003253D1 (ja) |
TW (1) | TW200808934A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009290001A (ja) * | 2008-05-29 | 2009-12-10 | Achilles Corp | 半導体製造テープ用基材フィルム |
JP2015151453A (ja) * | 2014-02-13 | 2015-08-24 | リンテック株式会社 | 伸長可能シートおよび積層チップの製造方法 |
WO2015193991A1 (ja) * | 2014-06-18 | 2015-12-23 | リンテック株式会社 | ダイシングシート用基材フィルムおよびダイシングシート |
WO2015193990A1 (ja) * | 2014-06-18 | 2015-12-23 | リンテック株式会社 | ダイシングシート用基材フィルムおよびダイシングシート |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009079582A1 (en) * | 2007-12-18 | 2009-06-25 | 3M Innovative Properties Company | Microsphere pressure sensitive adhesive composition |
CN101960578B (zh) * | 2008-04-18 | 2013-01-02 | 松下电器产业株式会社 | 倒装芯片安装方法和倒装芯片安装装置及其所使用的工具保护膜 |
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Also Published As
Publication number | Publication date |
---|---|
KR20070115799A (ko) | 2007-12-06 |
CN101081968B (zh) | 2012-05-23 |
US8025968B2 (en) | 2011-09-27 |
DE602007003253D1 (de) | 2009-12-31 |
EP1862494B1 (en) | 2009-11-18 |
US20090317633A2 (en) | 2009-12-24 |
EP1862494A1 (en) | 2007-12-05 |
US20070281152A1 (en) | 2007-12-06 |
TW200808934A (en) | 2008-02-16 |
JP4925173B2 (ja) | 2012-04-25 |
KR101046669B1 (ko) | 2011-07-06 |
CN101081968A (zh) | 2007-12-05 |
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