发明授权
US08122411B2 Method of performing static timing analysis considering abstracted cell's interconnect parasitics
有权
考虑抽象单元的互连寄生效应执行静态时序分析的方法
- 专利标题: Method of performing static timing analysis considering abstracted cell's interconnect parasitics
- 专利标题(中): 考虑抽象单元的互连寄生效应执行静态时序分析的方法
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申请号: US12503924申请日: 2009-07-16
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公开(公告)号: US08122411B2公开(公告)日: 2012-02-21
- 发明人: Soroush Abbaspour , Debjit Sinha
- 申请人: Soroush Abbaspour , Debjit Sinha
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理商 H. Daniel Schnurmann
- 主分类号: G06F17/50
- IPC分类号: G06F17/50
摘要:
An abstraction model supporting multiple hierarchical levels is inputted into a generalized static timing analysis of a hierarchical IC chip design to analyze and optimize the design of circuits integral to the chip containing a plurality of macro abstracts. An electrical network, synthesized for an internal abstract interconnect segment, is performed only once per macro and is applied to multiple instances of the macro abstract model in the IC chip design. The synthesized electrical network is a resistive capacitive or a resistive inductive capacitive network or a combination thereof. The synthesized electrical network is then used to match impulse response transfer functions of the network and the abstract interconnect segment's timing model. This network is stitched with the electrical parasitics of external interconnect segments connected to macro primary outputs. Various model order reductions are then performed on the electrical parasitics of external interconnects prior to network stitching. A static timing analysis is performed on the final network.
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