JP2007013063A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2007013063A JP2007013063A JP2005195432A JP2005195432A JP2007013063A JP 2007013063 A JP2007013063 A JP 2007013063A JP 2005195432 A JP2005195432 A JP 2005195432A JP 2005195432 A JP2005195432 A JP 2005195432A JP 2007013063 A JP2007013063 A JP 2007013063A
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Abstract
【解決手段】 バンプ37が接合された接続パッド32から離間して配線層41を設ける。接続パッド32と配線層41とを電気的に接続する複数の柱状の導電体43を配置する。柱状の導電体43をバンプ37の接合部分に対応する接合領域の全体にわたって配置することで、接合部分における電流密度を均一化する。また、電子流の方向に応じて柱状の導電体43の配置密度を変化させることにより、バンプ接合部における電流密度をより一層均一にする。
【選択図】図3
Description
このため、一つのはんだバンプに流れる電流密度が高まり、当該はんだバンプを構成するはんだ材及び/或いは当該はんだバンプの下地金属層にエレクトロマイグレーションを生じ、当該はんだバンプの内部にボイド(空洞)を生じてしまう可能性が高い。
かかるボイドの存在は.当該はんだバンプに於ける電流路の断面積を減じて電気抵抗を増加せしめてしまい、当該半導体装置の動作速度に悪影響を与えると共に、当該半導体装置の信頼性を低下させてしまう。
前記外部接続用の端子パッド部2は、前記配線層の延在部の途中、或いは一端に選択的に配設される。
前記外部接続用の端子パッド部32は、前記配線層の延在部の途中、或いは一端に選択的に配設される。また、前記下地金属層36は、前述の如きチタン(Ti)層33/銅(Cu)層34/ニッケル(Ni)層35の積層構造に特定されるものではなく、はんだバンプ37と端子パッド32との間の遮蔽効果を有する金属を選択し適宜組合せることができる。
最大電流密度を比較すると、図8に示す柱状の導電体43の配置とした場合の最大電流密度は、従来の配線構造に於ける最大電流密度から約58%も低減されており、はんだバンプ37の全体にわたって電流密度が均一化される。
これにより、エレクトロマイグレーションを生ずる恐れのあるような高い電流密度の領域を無くすことができ、当該エレクトロマイグレーションに起因したボイドの発生を大きく抑制することができる。
従ってより大電流を扱う場合であっても、エレクトロマイグレーション、及び当該エレクトロマイグレーションに起因したボイドの発生を大きく抑制することができる。
2,32 端子パッド
3,33 チタン層
4,34 銅層
5,35 ニッケル層
6,36 下地金属層
7,37 バンプ
8,38 パッシベーション層
9,39 ポリイミド層
40 開口部
41 配線層
42 絶縁層
43 柱状の導電体
Claims (10)
- 半導体基板上に配設され、所定の方向に延在する配線層と、
前記配線層上に複数の柱状の導電体を介して配設された外部接続用電極端子と
を備え、
前記柱状の導電体は、接続用開口により規定される領域内に於いて配設されてなることを特徴とする半導体装置。 - 半導体基板上に配設され、所定の方向に延在する配線層と、
前記配線層上に複数の柱状の導電体を介して配設された外部接続用電極端子と
を備え、
前記柱状の導電体は、前記外部接続用電極端子下にあって、前記配線層の延在する方向に対応して配設密度が異ならしめられてなることを特徴とする半導体装置。 - 半導体基板上に第一の絶縁層を介して配設され、所定の方向に延在する配線層と、
前記配線層上に第二の絶縁層を介して配設された外部接続用電極端子と、
前記配線層と前記外部接続用電極とを電気的に接続するよう、前記外部接続用電極下の
前記第二の絶縁層中に配設された複数の柱状の導電体と
を備え、
前記柱状の導電体は、前記外部接続用電極端子下にあって、前記配線層の延在する方向に対応して配設密度が異ならしめられてなることを特徴とする半導体装置。 - 前記柱状の導電体は、前記配線層と前記外部接続用電極端子との間に於いて、接続用開口により規定される領域内に配設されてなることを特徴とする請求項2又は請求項3記載の半導体装置。
- 前記柱状の導電体は、前記配線層と前記外部接続用電極端子との間に於いて、前記接続用開口により規定される領域内に於いて、前記配線層の延在する方向に対応して配設密度が漸次低下されてなることを特徴とする請求項1又は請求項4記載の半導体装置。
- 前記配線層は、前記外部接続用電極端子下に位置して、幅広部を具備することを特徴とする請求項1又は請求項2叉は請求項3記載の半導体装置。
- 前記外部接続用電極端子が、はんだバンプから構成されてなることを特徴とする請求項1又は請求項2叉は請求項3記載の半導体装置。
- 前記外部接続用電極端子が、下地金属層を具備するはんだバンプから構成されてなることを特徴とする請求項7記載の半導体装置。
- 前記下地金属層が、はんだバンプに接するニッケル層、当該ニッケル層に接する銅層、及び当該銅層に接するチタン層を含むことを特徴とする請求項8記載の半導体装置。
- 前記柱状の導電体は、ダングステン又はアルミニューム又は銅からなることを特徴とする請求項1又は請求項2叉は請求項3記載の半導体装置。
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JP2005195432A JP4452217B2 (ja) | 2005-07-04 | 2005-07-04 | 半導体装置 |
US11/256,273 US7268433B2 (en) | 2005-07-04 | 2005-10-24 | Semiconductor device |
TW094137336A TWI296429B (en) | 2005-07-04 | 2005-10-25 | Semiconductor device |
KR1020050106828A KR100745092B1 (ko) | 2005-07-04 | 2005-11-09 | 반도체 장치 |
CNB2005101253624A CN100421242C (zh) | 2005-07-04 | 2005-11-16 | 半导体器件 |
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JP2005195432A JP4452217B2 (ja) | 2005-07-04 | 2005-07-04 | 半導体装置 |
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JP2007013063A true JP2007013063A (ja) | 2007-01-18 |
JP4452217B2 JP4452217B2 (ja) | 2010-04-21 |
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US (1) | US7268433B2 (ja) |
JP (1) | JP4452217B2 (ja) |
KR (1) | KR100745092B1 (ja) |
CN (1) | CN100421242C (ja) |
TW (1) | TWI296429B (ja) |
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WO2009013826A1 (ja) * | 2007-07-25 | 2009-01-29 | Fujitsu Microelectronics Limited | 半導体装置 |
JP2010251754A (ja) * | 2009-04-15 | 2010-11-04 | Internatl Business Mach Corp <Ibm> | C4ボール内の均一な電流密度のための金属配線構造体 |
US8436467B2 (en) | 2007-06-15 | 2013-05-07 | Rohm Co., Ltd. | Semiconductor device |
JP2014501446A (ja) * | 2010-12-16 | 2014-01-20 | 日本テキサス・インスツルメンツ株式会社 | エレクトロマイグレーション耐性フィードライン構造を有するicデバイス |
JP2015130516A (ja) * | 2009-10-30 | 2015-07-16 | ヴィシェイ−シリコニックス | 半導体素子 |
US11658106B2 (en) | 2018-09-19 | 2023-05-23 | Fujitsu Limited | Electronic device, electronic apparatus, and method for supporting design of electronic device |
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KR100901242B1 (ko) * | 2007-07-11 | 2009-06-08 | 주식회사 네패스 | 전류 완화부를 포함하는 반도체 장치 및 그 제조 방법 |
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JP5361264B2 (ja) * | 2008-07-04 | 2013-12-04 | ローム株式会社 | 半導体装置 |
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US8803337B1 (en) | 2013-03-14 | 2014-08-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Integrated circuit structure having dies with connectors |
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JPH08293523A (ja) * | 1995-02-21 | 1996-11-05 | Seiko Epson Corp | 半導体装置およびその製造方法 |
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JP2002016065A (ja) | 2000-06-29 | 2002-01-18 | Toshiba Corp | 半導体装置 |
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US20030122258A1 (en) * | 2001-12-28 | 2003-07-03 | Sudhakar Bobba | Current crowding reduction technique using slots |
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2005
- 2005-07-04 JP JP2005195432A patent/JP4452217B2/ja not_active Expired - Fee Related
- 2005-10-24 US US11/256,273 patent/US7268433B2/en not_active Expired - Fee Related
- 2005-10-25 TW TW094137336A patent/TWI296429B/zh not_active IP Right Cessation
- 2005-11-09 KR KR1020050106828A patent/KR100745092B1/ko active IP Right Grant
- 2005-11-16 CN CNB2005101253624A patent/CN100421242C/zh not_active Expired - Fee Related
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JP2015130516A (ja) * | 2009-10-30 | 2015-07-16 | ヴィシェイ−シリコニックス | 半導体素子 |
JP2014501446A (ja) * | 2010-12-16 | 2014-01-20 | 日本テキサス・インスツルメンツ株式会社 | エレクトロマイグレーション耐性フィードライン構造を有するicデバイス |
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Also Published As
Publication number | Publication date |
---|---|
JP4452217B2 (ja) | 2010-04-21 |
CN1893046A (zh) | 2007-01-10 |
TWI296429B (en) | 2008-05-01 |
KR100745092B1 (ko) | 2007-08-01 |
US7268433B2 (en) | 2007-09-11 |
US20070001317A1 (en) | 2007-01-04 |
TW200703528A (en) | 2007-01-16 |
KR20070004403A (ko) | 2007-01-09 |
CN100421242C (zh) | 2008-09-24 |
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