JP2007088478A - 相互接続層置換用のアンダー・ボンディング・パッド経路 - Google Patents
相互接続層置換用のアンダー・ボンディング・パッド経路 Download PDFInfo
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- JP2007088478A JP2007088478A JP2006255123A JP2006255123A JP2007088478A JP 2007088478 A JP2007088478 A JP 2007088478A JP 2006255123 A JP2006255123 A JP 2006255123A JP 2006255123 A JP2006255123 A JP 2006255123A JP 2007088478 A JP2007088478 A JP 2007088478A
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Abstract
【解決手段】一態様では、はんだバンプ構造は、集積回路などの半導体デバイスに利用される。半導体デバイスは、半導体基板の上に配置される活性デバイスと、活性デバイスの上に形成された銅を含む相互接続層と、相互接続層を覆って位置する最外側メタライゼーション層とを備える。最外側メタライゼーション層は、アルミニウムを含み、それぞれが相互接続層に電気的に接続されている少なくとも1つのボンディング・パッドと、少なくとも1つの相互接続ランナを含む。アンダー・バンプ・メタライゼーション(UBM)層は、ボンディング・パッドを覆って配置され、はんだバンプは、UBMを覆って配置されている。
【選択図】図2A
Description
本発明のいっそうの完全な理解のために、添付の図面と共になされる以下の説明を今から参照する。
従来の工程と材料が、第2保護層222を堆積するのに使用されてよい。例えば、第2保護層222は、従来のPVDまたはCVD工程で堆積される酸化物/窒化物の二層から成ることができる。
本発明が、詳細に説明されてきたが、最も広い形で本発明の趣旨と範囲を逸脱せずに本明細書の様々な変更、置換、変形がなされてよいことを当業者は理解するであろう。
Claims (10)
- 少なくとも1つのボンディング・パッドと、少なくとも1つの相互接続ランナを含むアルミニウム層を備える半導体デバイスであって、前記相互接続ランナが、下にある銅相互接続層に電気的に結合されている半導体デバイス。
- 前記銅相互接続層がセグメント化されている、請求項1に記載のデバイス。
- 前記相互接続層が、少なくとも第1および第2ランナ部分にセグメント化され、少なくとも1つの前記ボンディング・パッドが、少なくとも1つのビアによって前記第1部分に電気的に接続され、少なくとも1つの前記相互接続ランナが、少なくとも1つのビアによって前記第2部分に電気的に接続されている、請求項2に記載のデバイス。
- 更に、前記アルミニウム層と前記相互接続層の間に配置され、貫通して延在するビアを有する保護層を備え、前記アルミニウム層が前記ビアの中に延在する、請求項1に記載のデバイス。
- 前記アルミニウム層がアルミニウム合金を含み、前記銅相互接続層が銅合金を含む、請求項1に記載のデバイス。
- 半導体基板の上に配置されている活性デバイスと、
前記活性デバイスの上に形成され、少なくとも第1および第2ランナ部分にセグメント化されている最外側相互接続層と、
ボンディング・パッド部分と相互接続ランナ部分とを含む、前記最外側相互接続層の上に位置するセグメント化されたボンディング・パッド層と、
前記最外側相互接続層と前記ボンディング・パッド層の間に配置され、貫通して延在し前記最外側相互接続層に接触するビアを有する保護層とを備え、前記ボンディング・パッド層および前記相互接続ランナ部分が前記ビアの中に延在し、前記ボンディング・パッド部分が少なくとも1つの前記ビアによって前記第1部分に電気的に接続され、前記相互接続ランナ部分が別の少なくとも1つの前記ビアによって前記第2部分に電気的に接続され、更に
前記ボンディング・パッド部分を覆って配置されているアンダー・バンプ・メタライゼーション(UBM)層とを備える半導体デバイス。 - 前記ボンディング・パッド層がアルミニウムまたはアルミニウムの合金を含み、前記最外側相互接続層が銅または銅の合金を含む、請求項6に記載のデバイス。
- 前記第1部分が複数の第1ランナに分割され、前記第2部分が複数の第2ランナに分割され、前記ボンディング・パッド部分が、少なくとも1つのビアによって複数の前記第1ランナそれぞれに電気的に接続され、少なくとも1つの前記相互接続ランナ部分が、少なくとも1つのビアによって複数の前記第2ランナそれぞれに電気的に接続されている、請求項6に記載のデバイス。
- 半導体基板の上に配置されているトランジスタと、
前記トランジスタの上に配置されている誘電体層と、
前記トランジスタの上で、且つ前記誘電体層内に形成されている銅を含む相互接続層と、
前記相互接続層の上に位置する最外側メタライゼーション層であって、アルミニウムを含み、複数のボンディング・パッドおよび複数の相互接続ランナに分割されて、それぞれが最外側相互接続層に電気的に接続されている最外側メタライゼーション層とを備える集積回路。 - 半導体基板の上に配置されている活性デバイスと、
前記活性デバイスの上に形成されている銅を含む相互接続層と、
前記相互接続層の上に位置する最外側メタライゼーション層とを備え、前記最外側メタライゼーション層が、アルミニウムを含み、それぞれが、前記相互接続層に電気的に接続されている少なくとも1つのボンディング・パッドおよび少なくとも1つの相互接続層ランナを含む半導体デバイス。
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US11/469960 | 2006-09-05 | ||
US11/469,960 US8319343B2 (en) | 2005-09-21 | 2006-09-05 | Routing under bond pad for the replacement of an interconnect layer |
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JP2007088478A true JP2007088478A (ja) | 2007-04-05 |
JP5409993B2 JP5409993B2 (ja) | 2014-02-05 |
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WO2012134710A1 (en) * | 2011-03-25 | 2012-10-04 | Ati Techologies Ulc | Semiconductor chip with supportive terminal pad |
US8647974B2 (en) | 2011-03-25 | 2014-02-11 | Ati Technologies Ulc | Method of fabricating a semiconductor chip with supportive terminal pad |
KR101508669B1 (ko) | 2011-03-25 | 2015-04-07 | 에이티아이 테크놀로지스 유엘씨 | 지지 터미널 패드를 갖는 반도체 칩 |
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JP5409993B2 (ja) | 2014-02-05 |
KR101163974B1 (ko) | 2012-07-09 |
US20130056868A1 (en) | 2013-03-07 |
CN1941341A (zh) | 2007-04-04 |
CN100557793C (zh) | 2009-11-04 |
US20070063352A1 (en) | 2007-03-22 |
KR20070033286A (ko) | 2007-03-26 |
US8319343B2 (en) | 2012-11-27 |
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