JP4353975B2 - 粘着シートの貼付・剥離方法及び粘着シートの貼付装置並びに粘着シートの剥離装置 - Google Patents
粘着シートの貼付・剥離方法及び粘着シートの貼付装置並びに粘着シートの剥離装置 Download PDFInfo
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Description
すなわち、請求項1記載の発明に係る粘着シートの貼付・剥離方法は、少なくとも一軸方向に熱収縮性を有する熱収縮材に、この熱収縮材の収縮変形に抗する性質を有する拘束層と、エネルギー線硬化型の粘着剤層とをその順に積層形成してなる粘着シートを、半導体ウエハに貼り付ける貼付過程と、粘着シートを貼り付けられた半導体ウエハに所要の処理を施した後に、半導体ウエハにエネルギー線を照射して粘着剤層を硬化させるエネルギー線照射過程と、粘着剤層を硬化させた後に、粘着シートを加熱して半導体ウエハから剥離する剥離過程とを備え、前記貼付過程において、半導体ウエハの切欠き部が熱収縮材の熱収縮方向の端に位置するように、粘着シートを半導体ウエハに貼り付けるとともに、前記剥離過程において、加熱による粘着シートの熱収縮方向とは異なる副次的収縮を拘束層によって抑制し、半導体ウエハの切欠き部から熱収縮材の熱収縮方向に沿って粘着シートを筒状に巻回しながら剥離することを特徴とする。
図1は、実施例1に係る粘着シートの貼付・剥離方法の工程順序を示したフローチャートである。
一軸方向に熱収縮性を有する熱収縮材1は、熱収縮性フィルムで構成できる。熱収縮性フィルムは、主収縮軸方向を有していればよく、収縮は一方向でも、縦横両方向でもあってもよい。なかでも、副次的な収縮を極力回避する目的で、一軸延伸フィルムが好ましい。熱収縮フィルムの主収縮方向の収縮率は、70〜180℃の範囲の所定温度(例えば、95℃、140℃)において、例えば5〜90%、好ましくは20〜85%である。熱収縮フィルムの主収縮方向以外の方向の収縮率は、好ましくは10%以下、さらに好ましくは5%以下、特に好ましくは3%以下である。熱収縮材1を構成する熱収縮フィルムとしては、粘着剤の塗工作業性等に優れる点で、ポリエステル、ポリエチレン、ポリプロピレン、ポリノルボルネン、ポリウレタン等で形成される延伸フィルムが好ましい。熱収縮材1の厚みは、一般には5〜300μm、好ましくは10〜100μmである。
この粘着シートの貼付装置10は、基台12の左右手前に、ウエハWが収納されたカセットC1が装填されるウエハ供給部14(左側)と、表面に粘着シートS1が貼り付けられたウエハWを回収するウエハ回収部16(右側)とが配備されている。このウエハ供給部14とウエハ回収部16の間には、ロボットアーム18を備えたウエハ搬送機構20が配備されている。また、基台12の右側奥にはアライメントステージ22が配備され、その上方にはウエハWに向けて粘着シートS1を供給するシート供給部24が配備されている。また、シート供給部24の右斜め下にはシート供給部24から供給されたセパレータ付きの粘着シートS1からセパレータのみを回収するセパレータ回収部26が配備されている。アライメントステージ22の左横にはウエハWを吸着保持するチャックテーブル28と、このチャックテーブル28に保持されたウエハWに粘着シートS1を貼り付けるシート貼付機構30と、ウエハWに粘着シートS1を貼り付けた後の不要なシートS2を剥離するシート剥離機構32とが配備され、その上方にはウエハWに貼り付けられた粘着シートS1をウエハWの外形に沿って切断するカッター機構34が配備されている。また、基台12の左側上方には、不要なシートを回収するシート回収部36が配備されている。なお、アライメントステージ22は、本発明に係る粘着シートの貼付装置における位置決め手段に相当する。
ウエハWを多段に収納したカセットC1がウエハ供給部14のカセット台に載置されると、カセット台が昇降移動し、取り出し対象のウエハWをロボットアーム18で取り出せる位置で停止する。
図11の(a)は、案内部材44の表面に粘着性を有する剥離テープ46を巻き掛け、
この剥離テープ46を半導体ウエハWに貼り付けられた粘着シートSの周縁の特定箇所に軽く接触させて持ち上げることにより、粘着シートSのめくり上がり(剥離のきっかけ)を作るようにしたものである。
S … 粘着シート
S´… 粘着シートの筒状体
1 … 熱収縮材
2 … 拘束層
3 … 粘着剤層
Claims (7)
- 少なくとも一軸方向に熱収縮性を有する熱収縮材に、この熱収縮材の収縮変形に抗する性質を有する拘束層と、エネルギー線硬化型の粘着剤層とをその順に積層形成してなる粘着シートを、半導体ウエハに貼り付ける貼付過程と、
粘着シートを貼り付けられた半導体ウエハに所要の処理を施した後に、半導体ウエハにエネルギー線を照射して粘着剤層を硬化させるエネルギー線照射過程と、
粘着剤層を硬化させた後に、粘着シートを加熱して半導体ウエハから剥離する剥離過程とを備え、
前記貼付過程において、半導体ウエハの切欠き部が熱収縮材の熱収縮方向の端に位置するように、粘着シートを半導体ウエハに貼り付けるとともに、
前記剥離過程において、加熱による粘着シートの熱収縮方向とは異なる副次的収縮を拘束層によって抑制し、半導体ウエハの切欠き部から熱収縮材の熱収縮方向に沿って粘着シートを筒状に巻回しながら剥離すること
を特徴とする粘着シートの貼付・剥離方法。 - 少なくとも一軸方向に熱収縮性を有する熱収縮材に、この熱収縮材の収縮変形に抗する性質を有する拘束層と、エネルギー線硬化型の粘着剤層とをその順に積層形成してなる粘着シートを、半導体ウエハに貼り付ける貼付過程と、
粘着シートを貼り付けられた半導体ウエハに所要の処理を施した後に、半導体ウエハにエネルギー線を照射して粘着剤層を硬化させるエネルギー線照射過程と、
粘着剤層を硬化させた後に、粘着シートを加熱して半導体ウエハから剥離する剥離過程とを備え、
前記剥離過程において、加熱による粘着シートの熱収縮方向とは異なる副次的収縮を拘束層によって抑制し、半導体ウエハに貼り付けられた粘着シートの熱収縮材の熱収縮方向の一端に機械力を付与し後に、又は付与しながら、当該熱収縮方向に沿って粘着シートを加熱して半導体ウエハから筒状に巻回しながら剥離すること
を特徴とする粘着シートの貼付・剥離方法。 - 少なくとも一軸方向に熱収縮性を有する熱収縮材に、この熱収縮材の収縮変形に抗する性質を有する拘束層と、エネルギー線硬化型の粘着剤層とをその順に積層形成してなる粘着シートを、半導体ウエハに貼り付ける貼付過程と、
粘着シートを貼り付けられた半導体ウエハに所要の処理を施した後に、半導体ウエハにエネルギー線を照射して粘着剤層を硬化させるエネルギー線照射過程と、
粘着剤層を硬化させた後に、粘着シートを加熱して半導体ウエハから剥離する剥離過程とを備え、
前記剥離過程において、加熱による粘着シートの熱収縮方向とは異なる副次的収縮を拘束層によって抑制し、熱収縮材の熱収縮方向の一端から他端にかけて順に加熱するよう温度勾配を持たせつつ粘着シートを半導体ウエハから筒状に巻回しながら剥離すること
を特徴とする粘着シートの貼付・剥離方法。 - 請求項1記載の粘着シートの貼付・剥離方法の貼付過程を実施するための粘着シートの貼付装置であって、
前記装置は、半導体ウエハの切欠き部が熱収縮材の熱収縮方向の端に位置するように、粘着シートと半導体ウエハとの位置関係を調整する位置決め手段を備えている粘着シートの貼付装置。 - 請求項2記載の粘着シートの貼付・剥離方法の剥離過程を実施するための粘着シートの剥離装置であって、
前記装置は、半導体ウエハに貼り付けられた粘着シートの熱収縮材の熱収縮方向の一端に機械力を付与する機械力付与手段を備えている粘着シートの剥離装置。 - 請求項3記載の粘着シートの貼付・剥離方法の剥離過程を実施するための粘着シートの剥離装置であって、
前記装置は、加熱による粘着シートの熱収縮方向とは異なる副次的収縮を拘束層によって抑制し、熱収縮材の熱収縮方向の一端から他端にかけて順に加熱するよう温度勾配を持たせるための加熱手段を備えている粘着シートの剥離装置。 - 請求項5又は請求項6に記載の粘着シートの剥離装置において、
前記装置は、粘着シートを加熱することにより半導体ウエハから剥離されて筒状にカールしている粘着シートを回収する回収手段を備えている粘着シートの剥離装置。
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JP2006322212A JP4353975B2 (ja) | 2006-11-29 | 2006-11-29 | 粘着シートの貼付・剥離方法及び粘着シートの貼付装置並びに粘着シートの剥離装置 |
MYPI20072110A MY142775A (en) | 2006-11-29 | 2007-11-27 | Method for attaching and peeling pressure-sensitive adhesive sheet, and attaching apparatus of pressure-sensitive adhesive sheet and peeling apparatus of pressure-sensitive adhesive sheet |
KR1020070121413A KR101066510B1 (ko) | 2006-11-29 | 2007-11-27 | 감압성 접착 시트의 부착 및 박리 방법, 및 감압성 접착시트의 부착 장치, 및 감압성 접착 시트의 박리 장치 |
EP07022989A EP1928018A3 (en) | 2006-11-29 | 2007-11-27 | Method for attaching and peeling pressure-sensitive adhesive sheet, and attaching apparatus of pressure-sensitive adhesive sheet and peeling apparatus of pressure-sensitive adhesive sheet |
US11/946,154 US20080121335A1 (en) | 2006-11-29 | 2007-11-28 | Method for attaching and peeling pressure-sensitive adhesive sheet, and attaching apparatus of pressure-sensitive adhesive sheet and peeling apparatus of pressure-sensitive adhesive sheet |
CN2007101966137A CN101246810B (zh) | 2006-11-29 | 2007-11-29 | 粘附和剥离压敏粘合片的方法、所述片的粘附与剥离装置 |
TW096145326A TW200830355A (en) | 2006-11-29 | 2007-11-29 | Method for attaching and peeling pressure-sensitive adhesive sheet, and attaching apparatus of pressure-sensitive adhesive sheet and peeling apparatus of pressure-sensitive adhesive sheet |
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JP2006322212A JP4353975B2 (ja) | 2006-11-29 | 2006-11-29 | 粘着シートの貼付・剥離方法及び粘着シートの貼付装置並びに粘着シートの剥離装置 |
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EP1928018A2 (en) | 2008-06-04 |
US20080121335A1 (en) | 2008-05-29 |
CN101246810B (zh) | 2012-04-04 |
MY142775A (en) | 2010-12-31 |
CN101246810A (zh) | 2008-08-20 |
KR101066510B1 (ko) | 2011-09-21 |
TW200830355A (en) | 2008-07-16 |
JP2008135662A (ja) | 2008-06-12 |
KR20080048944A (ko) | 2008-06-03 |
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