JP2017050450A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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Abstract
Description
1.1 半導体装置の回路構成
図1を用いて、第1実施形態に係る半導体装置の回路構成を説明する。
図示するように、半導体装置10は、例えば複数の半導体チップ(あるいは半導体素子)11_1,11_2,11_3,11_4を備える。半導体チップ11_1〜11_4の各々は、半導体回路、例えばメモリ回路、各種ドライバ、及び入出力回路等が形成された半導体基板を有する。ここでは、半導体装置10が4個の半導体チップを備える場合を示すが、もちろん5個以上の半導体チップを備えていてもよい。なお、半導体チップ11と記した場合、半導体チップ11_1〜11_4の各々を示す。
第1実施形態に係る半導体装置の構造を説明する。
図2を用いて、半導体装置10内の半導体チップの積層構造を説明する。
半導体チップ11_1〜11_4の各々は矩形形状を有する。半導体チップ11_1の矩形形状の長編側に、パッドが配置されたパッド領域1Aが配置されている。同様に、半導体チップ11_2の矩形形状の長編側に、パッドが配置されたパッド領域2Aが配置されている。半導体チップ11_3の矩形形状の長編側に、パッドが配置されたパッド領域3Aが配置され、半導体チップ11_4の矩形形状の長編側に、パッドが配置されたパッド領域4Aが配置されている。
図3を用いて、半導体チップの他の積層構造を説明する。
半導体チップ11_1の矩形形状の短辺側に、パッド領域1Aが配置されている。半導体チップ11_3の矩形形状の短辺側に、パッド領域3Aが配置されている。また、半導体チップ11_2の矩形形状の長辺側に、パッド領域2Aが配置されている。半導体チップ11_4の矩形形状の長辺側に、パッド領域4Aが配置されている。
図4を用いて、図2及び図3に示した半導体チップのパッドの構成について説明する。
半導体チップ11_1のパッド領域1Aは、パッドが配列された2つの列を持つ。半導体チップ11_1の中央側の列(第1列)には、信号パッド1Sが配置されている。信号パッド1Sは、信号が入出力されるパッドであり、半導体チップ11_1の回路に電気的に接続され、電気的に接続状態にある。信号パッド1Sには、例えばチップイネーブル信号CE1、ライトイネーブル信号WE、リードイネーブル信号RE、または入出力信号IO0〜IO7が入出力される。また、半導体チップ11_1の端部側の列(第2列)には、ダミーパッド1Dが配置されている。ダミーパッド1Dは、後述するスクライブ領域に配置されるパッドであり、例えば半導体チップ11_1の回路に電気的に接続されず、電気的に非接続状態にある。
図4を用いて、半導体チップ11のパッドとリード端子間のワイヤーによる接続について説明する。
まず、リード端子21_1と信号パッド4S間がワイヤーにより接続されている例を述べる。この例では、例えば、チップイネーブル信号CE4がリード端子21_1から信号パッド4Sに伝送される。
図5、図6及び図7を用いて、半導体装置10内の半導体チップ11の製造方法について説明する。
第1実施形態によれば、積層された半導体チップのパッドとリード端子間のボンディングワイヤーによる接続の不具合を低減できる半導体装置を提供可能である。さらに、スクライブ領域に、ボンディングワイヤーを接続するための中継パッドを配置することにより、半導体チップの面積増加を抑制できる。
第2実施形態では、スクライブ領域に設けられたTEG素子のパッドを、ボンディングワイヤーを接続するための中継パッドとして用いる。第2実施形態では、第1実施形態と異なる点について説明する。
図8を用いて、半導体チップのパッドの構成について説明する。図4に、積層された半導体チップ11_1〜11_4のパッド領域とリード端子の一部を拡大して示す。
図8を用いて、半導体チップ11のパッドとリード端子間のワイヤーによる接続について説明する。
リード端子21_1と信号パッド4S間がワイヤーで接続されている例を述べる。リード端子21_1とTEGパッド1T間にワイヤー41がボンディングされ、リード端子21_1とTEGパッド1T間が電気的に接続されている。さらに、TEGパッド1TとTEGパッド2T間にワイヤー42がボンディングされ、TEGパッド1TとTEGパッド2T間が電気的に接続されている。TEGパッド2TとTEGパッド3T間にワイヤー43がボンディングされ、TEGパッド2TとTEGパッド3T間が電気的に接続されている。さらに、TEGパッド3Tと信号パッド4S間にワイヤー44がボンディングされ、TEGパッド3Tと信号パッド4S間が電気的に接続されている。
第2実施形態では、半導体チップのスクライブ領域に配置されたTEG素子のパッドを、ボンディングワイヤーを接続するための中継パッドとして利用する。この場合、スクライブ領域の面積が狭く、スクライブ領域にダミーパッドが配置できない場合でも、中継パッドが確保できる。
第1及び第2実施形態は、不揮発性メモリ(例えば、NANDフラッシュメモリ)、揮発性メモリ、システムLSI等を問わず、例えば、コントローラから複数の半導体チップに信号を送信する様々な種類の半導体装置に適用可能である。
Claims (6)
- 第1端子と、
第1半導体チップと、
前記第1半導体チップ上に配置された第2半導体チップと、
前記第1半導体チップに設けられ、電気的に非接続状態にある第1パッドと、
前記第2半導体チップに設けられ、電気的に接続状態にある第2パッドと、
前記第1端子と前記第1パッドとを接続する第1ワイヤーと、
前記第1パッドと前記第2パッドとを接続する第2ワイヤーと、
を具備することを特徴とする半導体装置。 - 第1端子と、
第1半導体チップと、
前記第1半導体チップ上に配置された第2半導体チップと、
前記第1半導体チップに設けられ、テスト素子に電気的に接続された第1パッドと、
前記第2半導体チップに設けられ、電気的に接続状態にある第2パッドと、
前記第1端子と前記第1パッドとを接続する第1ワイヤーと、
前記第1パッドと前記第2パッドとを接続する第2ワイヤーと、
を具備することを特徴とする半導体装置。 - 前記第1パッドは、前記第1半導体チップのスクライブ領域に配置されていることを特徴とする請求項1または2に記載の半導体装置。
- 前記第1半導体チップに設けられ、電気的に接続状態にある第3パッドをさらに備え、
前記第1パッドは、前記第1端子と前記第3パッドとの間に配置されていることを特徴とする請求項1乃至3のいずれかに記載の半導体装置。 - 前記第1パッドは、前記第1端子と前記第2パッドとの間に配置されていることを特徴とする請求項1乃至4のいずれかに記載の半導体装置。
- 前記第1端子から前記第2パッドに伝送される信号は、チップイネーブル信号を含むことを特徴とする請求項1乃至5のいずれかに記載の半導体装置。
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US15/244,699 US10262962B2 (en) | 2015-09-03 | 2016-08-23 | Semiconductor device |
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JP2015173747A JP2017050450A (ja) | 2015-09-03 | 2015-09-03 | 半導体装置 |
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JP2001177050A (ja) * | 1999-12-20 | 2001-06-29 | Nec Corp | 半導体装置 |
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JP2010147070A (ja) * | 2008-12-16 | 2010-07-01 | Elpida Memory Inc | 半導体装置 |
KR20120024099A (ko) * | 2010-09-06 | 2012-03-14 | 삼성전자주식회사 | 멀티-칩 패키지 및 그의 제조 방법 |
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JP5964183B2 (ja) * | 2012-09-05 | 2016-08-03 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
KR102215826B1 (ko) * | 2014-12-22 | 2021-02-16 | 삼성전자주식회사 | 입출력 부하를 감소하는 적층형 메모리 칩, 이를 포함하는 메모리 모듈 및 메모리 시스템 |
-
2015
- 2015-09-03 JP JP2015173747A patent/JP2017050450A/ja active Pending
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2016
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JP2001177050A (ja) * | 1999-12-20 | 2001-06-29 | Nec Corp | 半導体装置 |
JP2002026239A (ja) * | 2000-07-07 | 2002-01-25 | Hitachi Ltd | 半導体装置およびその製造方法 |
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JP2008147506A (ja) * | 2006-12-12 | 2008-06-26 | Yamaha Corp | 半導体装置及びその製造方法 |
US20150302900A1 (en) * | 2014-04-18 | 2015-10-22 | SK Hynix Inc. | Semiconductor stacked package |
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