JP6009556B2 - シリコン貫通ビアを用いた集積回路設計 - Google Patents
シリコン貫通ビアを用いた集積回路設計 Download PDFInfo
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- JP6009556B2 JP6009556B2 JP2014518549A JP2014518549A JP6009556B2 JP 6009556 B2 JP6009556 B2 JP 6009556B2 JP 2014518549 A JP2014518549 A JP 2014518549A JP 2014518549 A JP2014518549 A JP 2014518549A JP 6009556 B2 JP6009556 B2 JP 6009556B2
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Description
本明細書に開示された1つ以上の実施形態は、集積回路(IC)に関する。より特定的には、1つ以上の実施形態は、シリコン貫通ビアを用いたICの設計に関する。
集積回路(IC)は、複数のダイを用いて実現される。そうでなければ単一のより多いなダイを用いて実現され得る回路設計は、マルチダイIC構造を用いて実現され得る。マルチダイIC構造は、典型的には、互いに結合され、かつ単一のICパッケージ内に配置された2つ以上のダイの包含にによって特徴付けられる。回路設計は、単一のより大きなダイを有するIC構造を用いる代わりに、複数のダイにわたって実現される。
集積回路(IC)構造において、所与のダイ上の回路の物理レイアウトに関するTSVの位置決めは、回路設計の回路ブロックの改善された動作特性を達成し得る。一実施形態においては、IC構造は、複数の第1の回路素子と、複数の第2の回路素子と、複数の第1のTSVと、複数の第2のTSVとを含む。第1および第2の回路素子、ならびに、第1および第2のTSVはともに、回路ブロック構成を含む。回路ブロック構成は、少なくとも1つの対称軸に関して対称である。第1のTSVの内の少なくとも1つはダミーTSVであり、ダミーTSVを有さない回路ブロック構成は対称ではない。
明細書は、新規とみなされる1つ以上の実施形態の特徴を規定する請求項で結論付けられるが、1つ以上の実施形態は、図面に関連する説明の考慮から、さらによく理解されると信じられる。必要に応じて、1つ以上の詳細な実施形態が、明細書に開示される。しかしながら、1つ以上の実施形態は、例示に過ぎないことが理解されるべきである。したがって、本明細書内に開示される具体的な構造的および機能的詳細は、限定として解釈されるべきではなく、単に特許請求の範囲の根拠、および、当業者に仮想的に任意の詳細な構造において1つ以上の実施形態をさまざまに採用するように教示するための代表的な根拠として理解されるべきである。さらに、本明細書で用いられる語句および用語は、限定することを意図したものではなく、むしろここに開示される1つ以上の実施形態の理解可能な説明を提供することを意図したものである。
こともできる。他の実施形態においては、ダイ115は、ダイ110の上面上に垂直に積層され得る。さらに別の実施形態においては、インターポーザ105は、2つの垂直に積層されたダイの間の中間層として用いられ得る。そのような場合には、インターポーザ105は、マルチダイICパッケージにおいて、垂直に積層されたダイを互いに絶縁し得る。
Claims (9)
- 集積回路(IC)構造であって、
シリコンウェハと、
前記シリコンウェハ上に実現された複数の第1の回路素子と、
前記シリコンウェハ上に実現された複数の第2の回路素子と、
前記シリコンウェハの第1の表面から前記シリコンウェハの第2の表面まで延在する複数の第1のシリコン貫通ビア(TSV)と、
前記シリコンウェハの前記第1の表面から前記シリコンウェハの前記第2の表面まで延在する複数の第2のTSVとを備え、
前記第1および第2の回路素子、ならびに、前記第1および第2のTSVはともに、回路ブロック構成を形成し、
前記回路ブロック構成は、少なくとも1つの対称軸に対して対称であり、
少なくとも1つの前記第1のTSVはダミーTSVであり、前記ダミーTSVを有さない回路ブロック構成は対称ではなく、
前記ダミーTSV、および前記複数の第2のTSVのうちの1つは、前記複数の第1の回路素子のうちの1つから等距離にある、IC構造。 - 前記複数の第1の回路素子および前記複数の第2の回路素子は、少なくとも第1のアクティブ回路素子を含み、
前記ダミーTSVと前記第1のアクティブ回路素子との間の距離は、前記ダミーTSVが前記第1のアクティブ回路素子の応力場に寄与するほど十分に小さい、請求項1に記載のIC構造。 - 前記回路ブロック構成は、2つの対称軸に対して対称である、請求項1または2に記載のIC構造。
- 前記複数の第1および第2のTSVの重心の位置は、前記回路ブロック構成の重心の位置と同じである、請求項1〜3のいずれか1項に記載のIC構造。
- 前記第1の回路素子は、少なくとも1つの第1のアクティブ回路素子を含み、
前記第2の回路素子は、少なくとも1つの第2のアクティブ回路素子を含み、
前記第1のアクティブ回路素子がさらされる応力場、および、前記第2のアクティブ回路素子がさらされる応力場は、前記ダミーTSVの存在のために、実質的に等しい、請求項1〜4のいずれか1項に記載のIC構造。 - 前記第1のアクティブ回路素子および前記第2のアクティブ回路素子はともに、差動トランジスタ対を含む、請求項5に記載のIC構造。
- 前記第1のアクティブ回路素子および前記第2のアクティブ回路素子は、高性能クロック分配ネットワークの異なるノードに結合される、請求項5に記載のIC構造。
- 前記IC構造は、インターポーザを備える、請求項1〜7のいずれか1項に記載のIC構造。
- 前記少なくとも1つのダミーTSVは、接地または電源に結合される、請求項1に記載のIC構造。
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US13/170,020 US8560982B2 (en) | 2011-06-27 | 2011-06-27 | Integrated circuit design using through silicon vias |
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PCT/US2012/021416 WO2013002844A1 (en) | 2011-06-27 | 2012-01-16 | Integrated circuit design using through silicon vias |
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