JP2015507372A - 複数のインターポーザを伴うスタックドダイアセンブリ - Google Patents
複数のインターポーザを伴うスタックドダイアセンブリ Download PDFInfo
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Abstract
Description
この発明は集積回路デバイス(IC)に関する。特に、この発明は、複数のインターポーザを含むICのためのスタックドダイアセンブリに関する。
集積回路は、時とともにより「密に」なってきており、つまりより多くのロジック特徴がICにおいて実現されている。より最近では、スタックドシリコンインターコネクトテクノロジ(「SSIT」)により、1つより多い半導体ダイが単一のパッケージに配置されることが可能にされる。SSIT ICは通信帯域幅に対する需要増に対応するために用いられてもよい。しかしながら、SSITを用いるICは1つより多いダイを有するが、そのようなICは、依然としてピン制約のために著しい帯域幅制約を有する。
ICのためのスタックドダイアセンブリは、第1のインターポーザ、第2のインターポーザ、第1の集積回路ダイ、第2の集積回路ダイ、および複数個の構成要素を含む。第1の集積回路ダイは第1のインターポーザおよび第2のインターポーザに相互接続され、第2の集積回路ダイは第2のインターポーザに相互接続される。複数個の構成要素は、第1の集積回路ダイを第1のインターポーザおよび第2のインターポーザに相互接続する。信号は、第1のインターポーザと第2のインターポーザとの間において、第1の集積回路ダイおよび複数個の構成要素を介してルーティングされる。
以下の説明では、この発明のより完全な説明を与えるために、数多くの具体的な詳細を述べる。しかしながら、当業者には、以下に与える具体的な詳細のすべてを伴わずにこの発明を実施してもよいことが明らかであるはずである。他の事例では、例を曖昧にしないために、周知の特徴を詳細には説明していない。例示を容易にするために、同じ参照符号が異なる図において同じ要素を指すために用いられるが、しかしながら、代替的実施例においては、それら要素は異なってもよい。
Claims (15)
- 第1のインターポーザと、
第2のインターポーザと、
前記第1のインターポーザおよび前記第2のインターポーザに相互接続される第1の集積回路ダイと、
前記第2のインターポーザに相互接続される第2の集積回路ダイと、
前記第1の集積回路ダイを前記第1のインターポーザおよび前記第2のインターポーザに相互接続する複数個の構成要素とを含み、
信号が、前記第1のインターポーザと前記第2のインターポーザとの間において、前記第1の集積回路ダイおよび前記複数個の構成要素を介してルーティングされる、アセンブリ。 - 前記第1の集積回路ダイを前記第1のインターポーザおよび前記第2のインターポーザに相互接続する前記複数個の構成要素は、前記第1のインターポーザおよび前記第2のインターポーザのインターコネクト制限領域の外部に位置し、
前記第1のインターポーザと前記第2のインターポーザとの間においてルーティングされる前記信号は、前記第1のインターポーザおよび前記第2のインターポーザの前記インターコネクト制限領域を回避する、請求項1に記載のアセンブリ。 - 前記第1のインターポーザに結合される第3の集積回路ダイをさらに含み、
前記第1の集積回路ダイは、前記第2の集積回路ダイと前記第3の集積回路ダイとの間に通信ブリッジを与える、請求項1または請求項2に記載のアセンブリ。 - 前記第2のインターポーザは複数個の導電線を含み、
前記複数個の構成要素は複数個のダイからダイへのインターコネクトを含み、
前記複数個のダイからダイへのインターコネクトの第1の部分は、前記第1の集積回路ダイを前記第1のインターポーザに相互接続し、
前記複数個のダイからダイへのインターコネクトの第2の部分は、前記第1の集積回路ダイを前記第2のインターポーザに相互接続し、
前記複数個のダイからダイへのインターコネクトの前記第1の部分および前記第2の部分は、前記インターコネクト制限領域の対向する両側に配置され、
前記複数個のダイからダイへのインターコネクトの第3の部分は、前記第2の集積回路ダイを前記第2のインターポーザに相互接続し、
前記第2のインターポーザの前記複数個の導電線の一部は、前記第1の集積回路ダイを前記第2の集積回路ダイに相互接続するために、前記複数個のダイからダイへのインターコネクトの前記第2の部分、および前記複数個のダイからダイへのインターコネクトの前記第3の部分に結合され、
前記複数個のダイからダイへのインターコネクトの前記第2の部分は、前記インターコネクト制限領域の外部に位置し、前記複数個の導電線の前記一部は、前記インターコネクト制限領域に関連付けられる前記第2のインターポーザのオフセット領域の外部に位置する、請求項2または請求項3に記載のアセンブリ。 - 前記第1のインターポーザの第1の縁部および前記第2のインターポーザの第2の縁部は、互いに当接するために実質的に並んで位置決めされ、
前記第1のインターポーザは、前記第1の縁部とともに境界線を共にする第1の境界を有する、前記インターコネクト制限領域に関連付けられる第1のオフセット領域を含み、
前記第2のインターポーザは、前記第2の縁部とともに境界線を共にする第2の境界を有する、前記インターコネクト制限領域に関連付けられる第2のオフセット領域を含む、請求項2〜4のいずれかに記載のアセンブリ。 - 前記インターコネクト制限領域は、微細ピッチインターコネクトを与えるために用いられる金属層およびビアホール層を含まない、請求項2〜5のいずれかに記載のアセンブリ。
- 前記第1のインターポーザは第1のマスクの組を用いて形成され、
前記第2のインターポーザは第2のマスクの組を用いて形成され、
前記第1のマスクの組は、少なくとも部分的に、前記第2の集積回路ダイが前記第1の集積回路ダイとは異なるタイプの集積回路向けであることに応じて、前記第2のマスクの組とは実質的に異なる、請求項1〜6のいずれかに記載のアセンブリ。 - 前記第1のインターポーザの第1の高さは前記第2のインターポーザの第2の高さと実質的に同じであり、
前記第1のインターポーザの第1の幅および前記第2のインターポーザの第2の幅は、両方とも、同じリソグラフィの最大幅以下である、請求項7に記載のアセンブリ。 - 前記第2の集積回路ダイは、メモリダイの鉛直スタックを含み、
前記第2の集積回路ダイは、前記メモリダイの鉛直スタックのためのインターフェイスロジックを含む、請求項1〜8のいずれかに記載のアセンブリ。 - アセンブリを形成する方法であって、
複数個の構成要素を用いて第1の集積回路ダイを第1のインターポーザおよび第2のインターポーザに相互接続するステップと、
前記複数個の構成要素を用いて第2の集積回路ダイを前記第2のインターポーザに相互接続するステップと、
前記第1のインターポーザと前記第2のインターポーザとの間において、前記第1の集積回路ダイおよび前記複数個の構成要素を介して、信号をルーティングするステップとを含む、アセンブリを形成する方法。 - インターコネクト制限領域を与えるために前記第1のインターポーザおよび前記第2のインターポーザの各々の一部を取っておくステップをさらに含み、
前記第1の集積回路ダイを前記第1のインターポーザおよび前記第2のインターポーザに相互接続する前記複数個の構成要素は、前記第1のインターポーザおよび前記第2のインターポーザの前記インターコネクト制限領域の外部に位置し、
前記第1のインターポーザと前記第2のインターポーザとの間において前記信号をルーティングするステップは、前記第1のインターポーザおよび前記第2のインターポーザの前記インターコネクト制限領域を回避するステップを含む、請求項10に記載の方法。 - 第3の集積回路ダイを前記第1のインターポーザに相互接続するステップをさらに含み、
前記第1の集積回路ダイは、前記第2の集積回路ダイと前記第3の集積回路ダイとの間に通信ブリッジを与える、請求項10または請求項11に記載の方法。 - 第1のマスクの組を用いて前記第1のインターポーザを形成するステップと、
第2のマスクの組を用いて前記第2のインターポーザを形成するステップとをさらに含み、
前記第1のマスクの組は、少なくとも部分的に、前記第2の集積回路ダイが前記第1の集積回路ダイとは異なるタイプの集積回路向けであることに応じて、前記第2のマスクの組とは実質的に異なる、請求項10〜12のいずれかに記載の方法。 - 前記第1のインターポーザの第1の高さは前記第2のインターポーザの第2の高さと実質的に同じであり、
前記第1のインターポーザの第1の幅および前記第2のインターポーザの第2の幅は、両方とも、同じリソグラフィの最大幅以下である、請求項13に記載の方法。 - 前記第2の集積回路ダイはメモリインターフェイスダイを含み、
前記方法は前記メモリインターフェイスダイにメモリダイの鉛直スタックを相互接続するステップをさらに含み、
前記第2の集積回路ダイは、前記メモリダイの鉛直スタックのためのインターフェイスロジックを含む、請求項10〜14のいずれかに記載の方法。
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