JPWO2011158835A1 - 接着シート - Google Patents
接着シート Download PDFInfo
- Publication number
- JPWO2011158835A1 JPWO2011158835A1 JP2011545576A JP2011545576A JPWO2011158835A1 JP WO2011158835 A1 JPWO2011158835 A1 JP WO2011158835A1 JP 2011545576 A JP2011545576 A JP 2011545576A JP 2011545576 A JP2011545576 A JP 2011545576A JP WO2011158835 A1 JPWO2011158835 A1 JP WO2011158835A1
- Authority
- JP
- Japan
- Prior art keywords
- adhesive layer
- adhesive
- die bonding
- bonding film
- film
- 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.)
- Granted
Links
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/52—Mounting semiconductor bodies in containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67132—Apparatus for placing on an insulating substrate, e.g. tape
-
- 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
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted 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
- H01L21/6835—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted 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
- H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/18—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet characterized by perforations in the adhesive tape
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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
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Abstract
Description
温度計、攪拌機及び塩化カルシウム管を備えた500mlの四つ口フラスコに、エーテルジアミン2000(BASF社製)(0.02モル)、1,12―ジアミノドデカン(0.08モル)及びN−メチル−2−ピロリドン150gをとり、60℃にて撹拌し、ジアミンを溶解した。ジアミンの溶解後、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(0.1モル)を少量ずつ添加した。60℃で1時間反応させた後、N2ガスを吹き込みながら170℃で加熱し、水を溶剤の一部と共沸除去した。この反応液をポリイミド樹脂のNMP溶液として得た。
(1)強接着層 主モノマーとしてブチルアクリレートとエチルアクリレート、アクリロニトリルを用い、官能基モノマーとしてヒドロキシエチルアクリレートを用いたアクリル共重合体を溶液重合法にて接着剤として得た。この合成したアクリル共重合体の重量平均分子量は70万であり、ガラス転移点は−30℃であった。このアクリル共重合体100質量部に対し、多官能イソシアネート架橋剤(日本ポリウレタン工業株式会社製)を2.2質量部配合した接着剤溶液を調製した。シリコーン系離型剤を塗布した二軸延伸ポリエステルフィルムセパレータ(厚さ25μm)の上に乾燥時の接着剤厚さが20μmになるように接着剤溶液を塗工した。つづいて、接着剤溶液を80℃で30分乾燥後、シリコーン系離型剤を塗布した別の二軸延伸ポリエステルフィルムセパレータ(厚さ25μm)を接着剤面にラミネートした。
主モノマーとして2−エチルヘキシルアクリレートとメチルメタクリレートを用い、官能基モノマーとしてヒドロキシエチルメタクリレートとアクリル酸を用いたアクリル共重合体を溶液重合法にて接着剤として得た。この合成したアクリル共重合体の重量平均分子量は40万であり、ガラス転移点は−38℃であった。このアクリル共重合体100質量部に対し、多官能イソシアネート架橋剤(三菱化学株式会社製)を15質量部配合した接着剤溶液を調製した。シリコーン系離型剤を塗布した二軸延伸ポリエステルフィルムセパレータ(厚さ38μm)の上に乾燥時の接着剤厚さが10μmになるように接着剤溶液を塗工した。つづいて、接着剤溶液を80℃で30分乾燥後、更にポリオレフィンフィルム(厚さ100μm)を接着剤面にラミネートした。この多層フィルムを室温で1週間放置し十分にエージングを行った後、試験に使用した。
主モノマーとしてブチルアクリレートとエチルアクリレート、アクリロニトリルを用い、官能基モノマーとしてヒドロキシエチルアクリレートを用いたアクリル共重合体を溶液重合法にて接着剤として得た。この合成したアクリル共重合体の重量平均分子量は70万であり、ガラス転移点は−30℃であった。このアクリル共重合体100質量部に対し、多官能イソシアネート架橋剤(日本ポリウレタン工業株式会社製)を2.2質量部配合した接着剤溶液を調製した。シリコーン系離型剤を塗布した二軸延伸ポリエステルフィルムセパレータ(厚さ25μm)の上に乾燥時の接着剤厚さが20μmになるように接着剤溶液を塗工した。つづいて、接着剤溶液を80℃で30分乾燥後、更にポリオレフィンフィルム(厚さ100μm)を接着剤面にラミネートした。この多層フィルムを室温で1週間放置し十分にエージングを行った後、試験に使用した。
(実施例1)
弱接着層と基材の積層品(ダイシングテープ)の弱接着層上に、内径210mmの円環状に切り抜いた上記(1)の強接着層をリングフレーム固定用の接着層として貼り付けた。その後に、直径220mmに円形加工したダイボンディングフィルムを強接着層と同心をなすように貼り付け、半導体装置製造用接着シートとした。直径8インチ、厚み50μmの半導体ウェハを60℃の熱板上で半導体装置製造用接着シートのダイボンディングフィルムと貼り合わせて、半導体ウェハの積層品を得た。
強接着層を積層しなかったこと以外は実施例1と同様にして、半導体ウェハの積層品を得た。
弱接着層と基材の積層品に代えて強接着層と基材の積層品(ダイシングテープ)を使用し、さらに、強接着層を積層しなかったこと以外は実施例1と同様にして、半導体ウェハの積層品を得た。
ダイボンディングフィルムを直径205mmに円形加工し、ダイボンディングフィルムと強接着層との重なり部分を設けなかったこと以外は実施例1と同様にして、半導体ウェハの積層品を得た。
弱接着層と基材の積層品に代えて強接着層と基材の積層品(ダイシングテープ)を使用し、さらに、ダイボンディングフィルムを直径205mmに円形加工し、ダイボンディングフィルムと強接着層との重なり部分を設けなかったこと以外は実施例1と同様にして、半導体ウェハの積層品を得た。
(ダイシング工程)
株式会社ディスコ社製のフルオートダイサー「DFD−6361」を用いて、上記実施例1及び比較例1〜4で作製したサンプルを切断した。サンプルの切断では、直径250mmの開口を有する円環状のリングフレームを用いた。サンプルの切断では、ブレード1枚で加工が完了するシングルカット方式を採用し、株式会社ディスコ社製のダイシングブレード「NBC−ZH104F−SE 27HDBB」をブレードとして用いた。サンプルの切断は、ブレード回転数45,000rpm、切断速度50mm/sの条件にて行った。切断時のブレードハイトは、ダイシング基材を20μm切り込む設定(80μm)とした。半導体ウェハを切断するサイズは10×10mmとした。
上記方法で個片化したチップのピックアップ性について、ルネサス東日本セミコンダクタ社製のフレキシブルダイボンダー「DB−730」を使用して評価した。ピックアップ用コレットには、マイクロメカニクス社製の「RUBBER TIP 13−087E−33(サイズ:10×10mm)」を用い、突上げピンには、マイクロメカニクス社製の「EJECTOR NEEDLE SEN2−83−05(直径:0.7mm、先端形状:直径350μmの半円)」を用いた。突上げピンは、ピン中心間隔4.2mmで9本配置した。ピックアップ時のピンの突上げ速度:10mm/s、突上げ高さ:1000μmの条件でピックアップ性を評価した。連続100チップをピックアップし、チップ割れ、ピックアップミス等が発生しない場合を良好(A)と判定し、1チップでもチップ割れやピックアップミス等が発生した場合を不良(B)と判定した。
弱接着層と基材の積層品(ダイシングテープ)の弱接着層上に、内径210mmの円環状に70mm間隔で連続して切り抜いた上記(1)の強接着層をリングフレーム固定用の接着層として貼り付けた。その後に、直径220mmに円形加工したダイボンディングフィルムを強接着層と同心をなすように連続して貼り付けた。そして、ダイシングテープと強接着層の積層部分に対して、基材への切り込み深さが10μm以下となるように調節しながら、ダイボンディングフィルムと同心円状にφ290mmの円形プリカット加工を行うと共に、基材の幅方向の両端部にダイシングテープと強接着層との積層部分が残るように加工し、半導体装置製造用接着シートを得た。
ダイボンディングフィルムの直径を211mmに円形加工した以外は実施例1と同様にして、半導体装置製造用接着シートを得た。
ダイボンディングフィルムの直径を205mmに円形加工した以外は実施例1と同様にして、半導体装置製造用接着シートを得た。
弱接着層と基材の積層品(ダイシングテープ)の弱接着層上に、直径220mmに円形加工したダイボンディングフィルムを60mm間隔で連続して貼り付けた。そして、ダイシングテープと弱接着層の積層部分に対して、基材への切り込み深さが10μm以下となるように調節しながら、ダイボンディングフィルムと同心円状にφ290mmの円形プリカット加工を行うと共に、基材の幅方向の両端部にダイシングテープが残るように加工し、半導体装置製造用接着シートを得た。
ダイボンディングフィルムの厚さを60μmとした以外は比較例2と同様にして、半導体装置製造用接着シートを得た。
実施例及び比較例に係る接着シートを、円形のダイボンディングフィルム100枚分の長さでロール状に巻き付け、シートロールを得た。巻き付け張力は、1kg又は3kgとした。次に、得られたシートロールを冷蔵庫内(5℃)で2週間保存し、その後、冷蔵庫から取り出したシートロールの50枚目のダイボンディングフィルムについて、巻痕の有無を観察した。評価基準は以下のとおりである。
○:あらゆる角度から観察しても巻痕が確認されない
△:フィルム上面から観察しても巻痕が確認されないが、フィルムの角度を変えて観察すると巻痕が確認される
×:フィルム上面から観察すると巻痕が確認される
Claims (5)
- 基材と、前記基材上に配置された第1の接着層と、前記第1の接着層上に配置されると共に前記第1の接着層が露出する開口を有する第2の接着層と、前記第1の接着層における前記開口から露出する部分に配置されたダイボンディングフィルムと、を備え、
前記ダイボンディングフィルムの外周の少なくとも一部が、前記第2の接着層に接している、接着シート。 - 前記ダイボンディングフィルムの外周の少なくとも一部が、前記第2の接着層に重なっている、請求項1に記載の接着シート。
- 前記第2の接着層の内周の少なくとも一部が、前記ダイボンディングフィルムに重なっている、請求項1に記載の接着シート。
- 前記ダイボンディングフィルムと前記第2の接着層との重なり部分の幅が0.1〜25mmである、請求項2又は3に記載の接着シート。
- ダイシング加工及びダイボンディング加工に用いられる、請求項1〜4のいずれか一項に記載の接着シート。
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CN103305142B (zh) * | 2012-03-07 | 2016-01-20 | 古河电气工业株式会社 | 粘接带 |
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