Power/ground wire routing correction and optimization

Details Power/ground wire routing correction and optimization Power/ground wire routing correction and optimization

2005-09-26

2009-10-13

Whitmore, Stacy A (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000

Reexamination Certificate

active

07603641

ABSTRACT:
A PG wire routing optimization tool for more efficiently routing PG wires in a layout design of an integrated circuit. The PG wire routing optimization tool analyzes a routing of the wires of a power and ground network for unacceptable IR-drops or electromigration problems. If one or more problems are discovered, the PG wire routing optimization tool determines design constraints for the wires that will correct the identified problems. It then initiates a floor planning tool to implement these corrective design constraints in the floor plan design. The PG wire routing optimization tool may alternately or additionally determine design constraints that will minimize the area of the wiring but will avoid creating new IR-drop or electromigration problems. It will then initiate a floor planning tool to implement these optimizing design constraints in the floor plan design.

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Wu, Su-Wei et al., “Efficient power/ground network analysis for power integrity-driven design methodlogy”, Jun. 2004, ACM, pp. 1-4.
Singh, Jaskirat et al., “Congestion-aware topology optimization of structured power/ground networks”, 2003, IEEE, pp. 1-11.

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