Invention Grant
- Patent Title: Performing a statistical timing abstraction for a hierarchical timing analysis of VLSI circuits
- Patent Title (中): 对VLSI电路的分层定时分析执行统计时序抽象
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Application No.: US12388932Application Date: 2009-02-19
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Publication No.: US08122404B2Publication Date: 2012-02-21
- Inventor: Debjit Sinha , Adil Bhanji , Barry L. Dorfman , Kerim Kalafala , Natesan Venkateswaran , Chandramouli Visweswariah
- Applicant: Debjit Sinha , Adil Bhanji , Barry L. Dorfman , Kerim Kalafala , Natesan Venkateswaran , Chandramouli Visweswariah
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent H. Daniel Schnurmann
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
A method for performing a hierarchical statistical timing analysis of an integrated circuit (IC) chip design by abstracting one or more macros of the design. The method includes performing a statistical static timing analysis of at least one macro; performing a statistical abstraction of the macro to obtain a statistical abstract model of the macro timing characteristics; applying the statistical abstract model as the timing model for each occurrence of the macro leading to a simplified IC chip design; and performing a hierarchical statistical timing analysis of the simplified chip design. The method achieves a context aware statistical abstraction, where a generated statistical abstract model is instantiated for each macro of the chip during statistical static timing analysis at the chip level, providing a compressed and pruned statistical timing abstraction and reducing the model-size during the statistical abstraction.
Public/Granted literature
- US20100211922A1 Method of Performing Statistical Timing Abstraction for Hierarchical Timing Analysis of VLSI circuits Public/Granted day:2010-08-19
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