JP5738263B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP5738263B2 JP5738263B2 JP2012281610A JP2012281610A JP5738263B2 JP 5738263 B2 JP5738263 B2 JP 5738263B2 JP 2012281610 A JP2012281610 A JP 2012281610A JP 2012281610 A JP2012281610 A JP 2012281610A JP 5738263 B2 JP5738263 B2 JP 5738263B2
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- film
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—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
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—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
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/731—Location prior to the connecting process
- H01L2224/73101—Location prior to the connecting process on the same surface
- H01L2224/73103—Bump and layer connectors
- H01L2224/73104—Bump and layer connectors the bump connector being embedded into the layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73201—Location after the connecting process on the same surface
- H01L2224/73203—Bump and layer connectors
- H01L2224/73204—Bump and layer connectors the bump connector being embedded into the layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—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
- H01L2224/83—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
- H01L2224/8319—Arrangement of the layer connectors prior to mounting
- H01L2224/83191—Arrangement of the layer connectors prior to mounting wherein the layer connectors are disposed only on the semiconductor or solid-state body
Landscapes
- Wire Bonding (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Dicing (AREA)
Description
各種テープを切断する際に用いる刃は必ず磨耗する。
本発明に係るテープを切断する際に用いる刃のようなものには、磨耗によりある頻度での交換が必要だが、高価なものが多いという問題がある。
また、本発明は、半導体用接着テープが、サポートテープを有し、その前後又は左右に貼り付けるときの位置合わせ用の目印を有する上記のウエハ薄化加工兼用半導体用接着テープに関する。
また、本発明は、接着剤に含む導電性を有する粒子によって電気的、物理的に接続可能にした上記のウエハ薄化加工兼用の半導体用接着テープに関する。
また、接着剤フィルムB3は、高反応性及び保存安定性を両立させるために、潜在性の硬化剤を含むことが好ましい。
接着剤フィルムB3内には、導電粒子を分散させてもよい。この場合、突出電極A3の高さのバラツキによる悪影響を低減することができる。
さらに、接着剤フィルムB3を異方導電性の接着剤層とすることができる。
化合物(A)の放射線硬化性炭素−炭素二重結合の導入量は、ヨウ素価で0.5〜20、好ましくは0.8〜10である。ヨウ素価が0.5以上であると、放射線照射後の粘着力の低減効果を得ることができ、ヨウ素価が20以下であれば、放射線照射後の粘着剤の流動性が十分で、延伸後の素子間隙を十分得ることができるため、ピックアップ時に各素子の画像認識が困難になるという問題が抑制できる。さらに、化合物(A)そのものに安定性があり、製造が容易となる。
また、ガラス転移点の他、相溶性と各種性能を上げる目的で酢酸ビニル、スチレン、アクリロニトリル等の炭素−炭素二重結合をもつ低分子化合物を配合することも単量体(I−1)の総重量の5重量%以下の範囲内で可能である。
また、分子量を調節することに関しては、メルカプタン、四塩化炭素系の溶剤を用いることが好ましい。なお、この反応は溶液重合に限定されるものではなく、塊状重合、懸濁重合など別の方法でも差し支えない。
また、化合物(A)が、酸価0.5〜30となるCOOH基を有することが好ましい。
化合物(B)は、ポリイソシアネート類、メラミン・ホルムアルデヒド樹脂及びエポキシ樹脂から少なくとも1種選ばれる化合物であり、単独で又は2種類以上を組み合わせて使用することができる。
さらに、エポキシ樹脂としては、TETRAD−X(登録商標、三菱化学(株)製)などを用いることができる。本実施形態においては、特にポリイソシアネート類を用いることが好ましい。
粘着剤層の厚さについては特に制限はないが、通常2μm〜50μmである。
A1 回路面
A2 裏面
A3 突出電極
20、21、22、23、24、25 ウエハ薄化加工兼用半導体用接着テープ
B1 基材フィルム
B2 粘着剤層
B3 接着フィルム
B4、B5 ウエハ薄化加工兼用半導体用接着テープの上下のサポートテープ
b1 直径
31 ウエハ薄化加工兼用半導体用接着テープとウエハの貼り合せ品(サポートテープなし、薄化前)
32 ウエハ加工テープの積層体
33 ウエハ加工テープ
41 ダイシングフレーム
42 ダイシングテープ
51 剥離用のテープ
61 積層体
62 ダイシングブレード
63 接着剤であるフィルム付半導体チップ
71 支持体
72 電極又は配線
Claims (3)
- 回路面から突出する複数の突出電極を有する半導体ウエハを準備する工程と、
粘着剤層を有する基材フィルムと接着フィルムとを有するウエハ薄化加工兼用半導体用接着テープを、前記接着フィルム側を前記半導体ウエハの回路面に向けた状態で前記半導体ウエハに貼り付けることにより、前記複数の突出電極の間を埋めるように接着フィルムの層が形成された積層体とする工程と、
前記積層体の基材フィルム側から圧力を加えつつ、前記半導体ウエハを裏面側からバックグラインダによって研磨し、前記半導体ウエハの厚みを薄くする工程と、
前記半導体ウエハの回路面側に前記ウエハ薄化加工兼用半導体用接着テープが貼付けられたままの状態で、該ウエハ薄化加工兼用半導体用接着テープの積層体の裏面側にダイシングテープを貼付ける工程と、
前記基材フィルムをウエハ薄化加工兼用半導体用接着テープから剥離する工程と、
前記半導体ウエハと前記接着フィルムとを前記接着フィルム側からダイシングし、複数の接着フィルム付半導体チップとする工程と、
前記接着フィルム付半導体チップを前記ダイシングテープから持ち上げる工程と、
前記ダイシングテープから分離された前記接着フィルム付半導体チップを半導体装置の一部となる支持体の上に実装する工程と、
を有し、
前記積層体とする工程で、前記接着テープの前記接着フィルムの厚みが前記突出電極の高さよりも厚く、前記接着フィルムによって前記突出電極が覆われ、
前記実装する工程において、100〜250℃の温度で0.1〜30秒の間加熱圧着をすることにより、前記接着フィルム付半導体チップと前記支持体との間を接続する、
半導体装置の製造方法。 - 前記粘着剤層は、放射線照射により粘着力が低下する、請求項1に記載の半導体装置の製造方法。
- 前記基材フィルムと前記接着フィルムとの両方又は片方が、前記半導体ウエハと同形状及び同程度の大きさである、請求項1又は2に記載の半導体装置の製造方法。
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