发明名称 |
Timing driven routing for noise reduction in integrated circuit design |
摘要 |
A mechanism is provided in a data processing system for timing-driven routing for noise reduction in integrated circuit design. Responsive to performing timing driving routing on an integrated circuit design, the mechanism identifies a set of noise-critical nets in the integrated circuit design. The mechanism performs timing driven routing on the integrated circuit design with noise constraints based on the set of noise-critical nets. |
申请公布号 |
US8938702(B1) |
申请公布日期 |
2015.01.20 |
申请号 |
US201314134039 |
申请日期 |
2013.12.19 |
申请人 |
International Business Machines Corporation |
发明人 |
Hogan Andre;Huber Andrew D.;Li Zhuo;Muuss Karsten;Peyer Sven;Schulte Christian;Tellez Gustavo E. |
分类号 |
G06F17/50 |
主分类号 |
G06F17/50 |
代理机构 |
|
代理人 |
Tkacs Stephen R.;Walder, Jr. Stephen J.;Stock William J. |
主权项 |
1. A method, executed in a data processing system, for timing-driven routing for noise reduction in an integrated circuit design, the method comprising:
responsive to performing a timing driven routing on an integrated circuit design, identifying a first set of noise-critical nets in the integrated circuit design based on the timing driven routing; performing an iterative routing on the integrated circuit design comprising:
iteratively performing a global routing and track assignment and a coupling timing on the integrated circuit design and, in response, identifying a second set of noise-critical nets in the integrated circuit design until the second set of noise-critical nets converges;performing a detail routing on the integrated circuit design with noise constraints and regular constraints;performing the coupling timing on the integrated circuit design to form a modified integrated circuit design; andidentifying a third set of noise-critical nets in the integrated circuit design; and responsive to determining that the third set of noise-critical nets and the second set of noise critical nets are equivalent, outputting the modified integrated circuit design. |
地址 |
Armonk NY US |