JP4605155B2 - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
- Publication number
- JP4605155B2 JP4605155B2 JP2006511391A JP2006511391A JP4605155B2 JP 4605155 B2 JP4605155 B2 JP 4605155B2 JP 2006511391 A JP2006511391 A JP 2006511391A JP 2006511391 A JP2006511391 A JP 2006511391A JP 4605155 B2 JP4605155 B2 JP 4605155B2
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- Prior art keywords
- bump
- semiconductor element
- wiring board
- electrode
- solder resist
- 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.)
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Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Wire Bonding (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Description
2;半導体素子
3;バンプ
4;電極
5;電極パッド
6;アンダーフィル樹脂
6a;樹脂材料
7;ソルダーレジスト
7a;開口部
8;フラックス
A;ソルダーレジスト7上のアンダーフィル樹脂6の厚さ
B;ソルダーレジスト7の厚さ
C;電極パッド5及びバンプ3の高さの和
D;バンプ3の高さ
Claims (10)
- その表面に電極パッドが形成された配線基板と、この配線基板上に配置されその表面に電極が形成された半導体素子と、前記電極を前記電極パッドに接続するはんだにより形成されたバンプと、前記配線基板と前記半導体素子との間に充填され前記バンプを埋め込むアンダーフィル樹脂と、を有し、前記配線基板は前記電極パッドが形成されている側の表面に配置されたソルダーレジストを有し、このソルダーレジストには前記電極パッドを露出させる開口部が形成されており、前記配線基板と前記半導体素子との間において、前記電極パッドの直上域を除く領域における前記ソルダーレジストの厚さが、前記領域における前記ソルダーレジスト上に配置された前記アンダーフィル樹脂の厚さ以上であることを特徴とする半導体装置。
- 前記ソルダーレジスト上に配置された前記アンダーフィル樹脂の厚さが50μm以下であることを特徴とする請求項1に記載の半導体装置。
- 前記バンプの体積は前記開口部の容積よりも小さいことを特徴とする請求項1又は2に記載の半導体装置。
- 前記ソルダーレジストの厚さが30μm以上であることを特徴とする請求項3に記載の半導体装置。
- その表面に電極パッドが形成された配線基板及びその表面に電極が形成された半導体素子を備え、前記配線基板は前記電極パッドが形成された側の表面に配置され前記電極パッドを露出させる開口部が形成されたソルダーレジストを備えた半導体装置の製造方法において、前記電極パッド上及び前記電極上のうち少なくとも一方にバンプを形成する工程と、前記配線基板上における前記半導体素子が搭載される予定の領域の少なくとも一部に液体状の樹脂材料を被着させる工程と、前記半導体素子を前記配線基板に押し付けて前記電極パッド、前記バンプ及び前記電極を相互に接続する工程と、前記バンプを溶融させた後凝固させて前記電極を前記バンプを介して前記電極パッドに接合する工程と、前記樹脂材料を硬化させて前記配線基板と前記半導体素子との間に前記バンプを埋め込むようにアンダーフィル樹脂を形成する工程と、を有し、前記接合する工程において、前記バンプの溶融中に前記配線基板と前記半導体素子との間の距離を制御し、前記アンダーフィル樹脂の形成後において、前記配線基板と前記半導体素子との間において、前記電極パッドの直上域を除く領域における前記ソルダーレジストの厚さを、前記領域における前記ソルダーレジスト上に配置された前記アンダーフィル樹脂の厚さ以上とすることを特徴とする半導体装置の製造方法。
- 前記バンプを形成する工程において、前記バンプの体積を、前記開口部の容積よりも小さくすることを特徴とする請求項6に記載の半導体装置の製造方法。
- 前記ソルダーレジストの厚さを30μm以上とすることを特徴とする請求項7に記載の半導体装置の製造方法。
- 前記接合する工程において、前記配線基板と前記半導体素子との間の距離の制御は、前記配線基板に対する前記半導体素子の相対的な位置を制御することによって行うことを特徴とする請求項6乃至8のいずれか1項に記載の半導体装置の製造方法。
- 前記樹脂材料には、酸化膜除去作用を持つ薬品が添加された樹脂材料を使用することを特徴とする請求項6乃至9のいずれか1項に記載の半導体装置の製造方法。
- 前記バンプを形成する工程と前記樹脂材料を被着させる工程との間に、前記配線基板における前記電極パッドが形成されている側の表面及び前記半導体素子における前記電極が形成されている側の表面のうち少なくとも一方にプラズマ処理を施す工程を有することを特徴とする請求項6乃至9,11のいずれか1項に記載の半導体装置の製造方法。
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JP2003179100A (ja) * | 2001-10-05 | 2003-06-27 | Nec Corp | 電子部品の製造装置および電子部品の製造方法 |
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US20080251942A1 (en) | 2008-10-16 |
CN100446205C (zh) | 2008-12-24 |
US7902678B2 (en) | 2011-03-08 |
JPWO2005093817A1 (ja) | 2008-02-14 |
WO2005093817A1 (ja) | 2005-10-06 |
CN1938839A (zh) | 2007-03-28 |
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