JP2008034570A - 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
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- JP2008034570A JP2008034570A JP2006205463A JP2006205463A JP2008034570A JP 2008034570 A JP2008034570 A JP 2008034570A JP 2006205463 A JP2006205463 A JP 2006205463A JP 2006205463 A JP2006205463 A JP 2006205463A JP 2008034570 A JP2008034570 A JP 2008034570A
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- Prior art keywords
- solder
- connection terminal
- wiring
- wiring board
- semiconductor device
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Abstract
【解決手段】半導体装置を、半田バンプ(半田突起電極)24が電極パッド上に形成されたICチップ(半導体素子)2,3,4と、前記ICチップ2,3,4の各々の半田バンプ24が接続された接続端子7、外部機器との接続のための外部接続端子8およびその上に形成された半田ボール5、および基板面に形成された溝部内に設けられ前記接続端子7と外部接続端子8を接続している導体配線9を有した配線基板1とを備えた構成とする。これによれば、導体配線9を狭ピッチで配置する場合も溝部の存在によって断面積を大きくできるので、配線抵抗を抑えることができる。
【選択図】図1
Description
前記半田突起電極および前記半田外部接続電極と同一の半田材料によって前記導体配線の少なくとも表面層が形成されていてよい。かかる表面層は、半田突起電極および半田外部接続電極の半田付けと同時に形成することができるので、より安価なプロセスで配線形成が可能となるからである。
(第1の実施の形態)
図1(a)は本発明の第1の実施の形態にかかる半導体装置の概略全体構成を示す平面図、図1(b)は同半導体装置の図1(a)におけるA−A線に沿って切断した断面図である。図2(a)は同半導体装置の図1(b)におけるB部の拡大図、図2(b)は同半導体装置を構成する配線基板の配線部分の平面図、図2(c)は同配線基板の図2(b)におけるC-C線に沿って切断した断面図である。
(第2の実施の形態)
図5(a)は本発明の第2の実施の形態にかかる半導体装置の一部を示す拡大断面図、図5(b)は同半導体装置の一部の一部切り欠き上面図である。
(第3の実施の形態)
図6(a)は、本発明の第3の実施の形態にかかる半導体装置の構成を示す平面図、図6(b)は同半導体装置の図6(a)におけるD−D線に沿って切断した断面図である。
2,3,4 ICチップ(半導体素子)
5 半田ボール
7 接続端子
8 外部接続端子
9 導体配線
14 金属薄膜層
15 半田層
18 幅広部
24 半田バンプ
31 樹脂配線基板
33 ダイパターン
34 ランド
35 貫通導体
36 導体パターン
37 ワイヤ
38 封止樹脂
Claims (14)
- 半田突起電極が電極パッド上に形成された半導体素子と、
前記半導体素子の半田突起電極が接続された内部接続端子、外部機器との接続のための外部接続端子およびその上に形成された半田外部接続電極、および基板面に形成された溝部内に設けられ前記内部接続端子と外部接続端子を接続している導体配線を有した配線基板とを備えたことを特徴とする半導体装置。 - 半田突起電極が電極パッド上に形成された半導体素子と、
前記半導体素子の半田突起電極が接続された内部接続端子、外部機器との接続のための外部接続端子、および基板面に形成された溝部内に設けられ前記内部接続端子に接続している導体配線を有した第1の配線基板と、
前記第1の配線基板が搭載された搭載部、前記第1の配線基板の外部接続端子との接続のための第2の内部接続端子、外部機器との接続のための第2の外部接続端子、および前記第2の内部接続端子と前記第2の外部接続端子とを接続している導体部を有した第2の配線基板と、
前記第1の配線基板の外部接続端子と前記第2の配線基板の第2の内部接続端子とを接続しているワイヤと、
前記半導体素子、前記第1の配線基板、および前記ワイヤを包埋するように前記第2の配線基板上に設けられた封止樹脂とを備えたことを特徴とする半導体装置。 - 前記導体配線を有した配線基板の内部接続端子および外部接続端子はそれぞれ、基板面に形成された凹部に設けられていることを特徴とする請求項1または請求項2のいずれかに記載の半導体装置。
- 前記導体配線を有した配線基板の内部接続端子および外部接続端子が設けられている凹部は、前記導体配線が設けられた溝部と連接し、かつ前記溝部より浅く形成されていることを特徴とする請求項3に記載の半導体装置。
- 前記半田突起電極と前記半田外部接続電極とは同一の半田材料からなることを特徴とする請求項1に記載の半導体装置。
- 前記半田突起電極および前記半田外部接続電極と同一の半田材料によって前記導体配線の少なくとも表面層が形成されていることを特徴とする請求項5に記載の半導体装置。
- 前記導体配線の少なくとも表面層は半田層であり、その半田層の下地は、前記溝部を含む基板面に形成される絶縁膜との密着性を確保するための最下層の接着層と、半田濡れ性を確保するための最上層の半田濡れ層とを持った多層構造を有することを特徴とする請求項1または請求項2のいずれかに記載の半導体装置。
- 前記接着層がCr、Ti、TiW、TiNからなり、前記半田濡れ層がAu、Ni、Pt、Cuからなることを特徴とする請求項7に記載の半導体装置。
- 前記導体配線を有した配線基板は、シリコン配線基板であることを特徴とする請求項1または請求項2のいずれかに記載の半導体装置。
- 前記シリコン配線基板は、シリコン単結晶基板上に半導体回路が形成されている回路形成基板であることを特徴とする請求項9に記載の半導体装置。
- 前記導体配線は、半導体素子近傍となる位置に幅広部を有することを特徴とする請求項1または請求項2のいずれかに記載の半導体装置。
- 半田突起電極を有する半導体素子および配線基板を準備する工程と、
前記配線基板の表面に、前記半導体素子の半田突起電極に対応する配置の内部接続端子から外部機器との接続のための外部接続端子にわたる溝部を形成する工程と、
前記溝部内に導体配線を形成する工程と、
前記配線基板上の内部接続端子と前記半導体素子の半田突起電極とを接続させる工程と
を含むことを特徴とする半導体装置の製造方法。 - 前記配線基板上の内部接続端子と前記半導体素子の半田突起電極とを接続させる工程に先立って、前記配線基板の外部接続端子上に半田外部接続電極を搭載する工程を行い、
前記配線基板上の内部接続端子と前記半導体素子の半田突起電極とを接続させる工程において、前記半田突起電極と半田外部接続電極とを溶融させてその一部を前記溝部に流入させることにより、少なくとも表面層が半田層である前記導体配線を形成する工程を同時に行うことを特徴とする請求項12に記載の半導体装置の製造方法。 - 前記溝部内に導体配線を形成する工程は、前記溝部に半田ペーストを印刷法にて供給した後にリフローすることにより行うことを特徴とする請求項12に記載の半導体装置の製造方法。
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US20100289129A1 (en) * | 2009-05-14 | 2010-11-18 | Satya Chinnusamy | Copper plate bonding for high performance semiconductor packaging |
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US8946072B2 (en) * | 2012-02-02 | 2015-02-03 | Taiwan Semiconductor Manufacturing Company, Ltd. | No-flow underfill for package with interposer frame |
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US7728429B2 (en) | 2010-06-01 |
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US20080087993A1 (en) | 2008-04-17 |
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