JP2014519716A - 集積回路用の応力認識設計 - Google Patents
集積回路用の応力認識設計 Download PDFInfo
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Abstract
Description
本明細書に開示されている1つ以上の実施の形態は、集積回路(IC)に関する。より特定的には、1つ以上の実施の形態は、IC用の応力認識設計およびIC内での回路設計の応力認識実現に関する。
回路設計の規模は大きくなり続け、実施するためにより大規模な集積回路(IC)を必要とする。場合によっては、単一の大きなダイを用いて実施できる回路設計は、2つ以上のより小さいダイを含むICを用いて実現することができる。2つ以上のより小さいダイを含むICは「マルチダイIC」と呼ぶことができる。マルチダイICは一般に、互いに結合される2つ以上のダイを含み、単一のICパッケージ内に配置されることを特徴とする。回路設計は、単一のより大きいダイを用いる代わりに、複数のダイにわたって実施される。
本明細書に開示されている1つ以上の実施の形態は集積回路(IC)に関し、より特定的にはIC用の応力認識設計およびIC内の回路設計の応力認識実現に関する。
一部の実施の形態において、第2の区域は外側境界を包含することができる。
Claims (15)
- インターポーザを含む集積回路(IC)に係わる回路設計の方法であって、前記方法は
IC(200、500)内に実現され、インターポーザ(205、505)への正規化された応力量を超える量の応力を受けるインターポーザの区域(465、470、535)内におけるアクティブリソースを特定することと、
IC内に実現される回路設計の応力認識分析に従い、IC内に実現する回路設計のエレメントを、アクティブリソースに選択的に割当てることとを備え、
他の区域(620)は、前記他の区域内の実質的に正規化された応力によって特徴付けられる、方法。 - 前記アクティブリソース用に応力認識タイミングモデルを用いることをさらに備える、請求項1に記載の方法。
- 前記アクティブリソース用の前記応力認識タイミングモデルは、アクティブリソースと正規化された応力量を超える量の応力が少なくとも部分的に帰属する応力誘起体(325、605)との間の距離に依存する、請求項2に記載の方法。
- 前記応力誘起体は、シリコン貫通電極(TSV)(325)、またはインターポーザのダイ取付境界(605)である、請求項3に記載の方法。
- 前記アクティブリソースが応力誘起体から所定の距離内にあることを判断し、それに応答して、前記応力誘起体からの距離を関数として、前記アクティブリソースの動作特性を定めることをさらに備える、請求項3または4に記載の方法。
- 前記アクティブリソースを用いる場合の前記回路設計のタイミングは臨界ではないとの判断に応答して、回路設計のエレメントを実現するためにだけアクティブリソースを用いることをさらに備える、請求項1から5のいずれか1項に記載の方法。
- 集積回路(IC)であって、
応力誘起構造(325、605)を含むインターポーザ(205、505)を備え、
前記インターポーザは
第1の区域(465、470、535)を含み、第1の区域内の実質的に正規化された応力によって特徴付けられ、さらに
前記応力誘起構造によって誘起される第2の区域(620)を含み、前記第2の区域全体において正規化された応力よりも高い応力によって特徴付けられ、さらに
前記第2の区域内に配置されるアクティブデバイスを備える、集積回路(IC)。 - 前記応力誘起構造体は、シリコン貫通電極(TSV)(325)を含む、請求項7に記載のIC。
- 前記第2の区域は前記TSVを包含し、前記第1の区域は前記第2の区域を包含する、請求項8に記載のIC。
- 前記インターポーザの表面に取付けられる第1のダイ(210、510)をさらに備え、
前記応力誘起構造は、前記インターポーザ上の前記第1のダイの外縁によって規定されるダイ取付境界(605)を含み、
前記インターポーザは、前記ダイ取付境界内の内側境界(530)と前記ダイ取付境界の外にある外側境界(525)とによって規定される立入り禁止区域(535)を含む、請求項7から9のいずれか1項に記載のIC。 - 前記第2の区域は前記内側境界内にある、請求項10に記載のIC。
- 前記第2の区域は前記外側境界を包含する、請求項10に記載のIC。
- 前記第1の区域は、前記内側境界内にあり、前記第2の区域に囲まれる、請求項10に記載のIC。
- 前記インターポーザの表面上の第1のダイ(210、510)と、
前記インターポーザの表面上の第2のダイ(215、515)とをさらに備え、
前記第1のダイおよび第2のダイは所定の距離で隔離されて、前記第1のダイと前記第2のダイとの間で、インターポーザのチャネル(540)を露出させ、
前記応力誘起構造は前記インターポーザ上の前記第1のダイおよび前記第2のダイの各々の外縁によって規定されるダイ取付境界(605)を含み、
前記第2の区域は前記第1のダイおよび前記第2のダイ間のインターポーザのチャネルを含む、請求項7から9のいずれか1項に記載のIC。 - 前記インターポーザの表面上の第1のダイ(210、510)と、
前記インターポーザの表面上の第2のダイ(215、515)とをさらに備え、
前記第1のダイおよび第2のダイは所定の距離で隔離されて、前記第1のダイと前記第2のダイとの間で、インターポーザのチャネル(540)を露出させ、
前記応力誘起構造は前記インターポーザ上の前記第1のダイおよび前記第2のダイの各々の外縁によって規定されるダイ取付境界(605)を含み、
前記第1のダイおよび前記第2のダイ間のインターポーザの前記チャネルは立入り禁止区域である、請求項7から9のいずれか1項に記載のIC。
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US13/162,541 US8779553B2 (en) | 2011-06-16 | 2011-06-16 | Stress-aware design for integrated circuits comprising a stress inducing structure and keep out zone |
PCT/US2012/031299 WO2012173683A1 (en) | 2011-06-16 | 2012-03-29 | Stress-aware design for integrated circuits |
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