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Impact of Local Interconnects on Timing and Power in a High Performance Microprocessor

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2 Author(s)
Shelar, R.S. ; Intel Corp., Austin, TX, USA ; Patyra, M.

In nanometer technologies, local interconnects are believed to cause a major impact on timing and power in VLSI circuits. To assess the impact of the interconnects on timing and power in a real high performance microprocessor design in a quantitative manner, this article presents results from an extensive study carried out on RTL-to-layout synthesized blocks in a 45-nm technology core. The study shows that the interconnects in these blocks account for 30% of the cycle time, on an average, on the worst internal timing paths and contribute nearly one-third to the power dissipation. This points to severity of impact due to the interconnects in today's high performance designs.

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Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:32 ,  Issue: 10 )