Design and analysis of power distribution networks in PowerPC microprocessors
DAC '98 Proceedings of the 35th annual Design Automation Conference
Design of an efficient power distribution network for the UltraSPARC-I microprocessor
ICCD '95 Proceedings of the 1995 International Conference on Computer Design: VLSI in Computers and Processors
Metal Fix and Power Network Repair for SOC
ISVLSI '06 Proceedings of the IEEE Computer Society Annual Symposium on Emerging VLSI Technologies and Architectures
SPIDER: simultaneous post-layout IR-drop and metal density enhancement with redundant fill
ICCAD '05 Proceedings of the 2005 IEEE/ACM International conference on Computer-aided design
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A procedure called box-scan search which identifies possible weakness in a power distribution network of an LSI is proposed. In the procedure, node pairs having large voltage difference but located in close proximity are considered as good candidates for improving connections using additional wire. The virtual box is the grid space in which the node voltages are compared. Scans of node voltages of the virtual box generate a prioritized list of the fixing point candidate. Experimental results show effectiveness of the proposed procedure for pointing out the node pairs which requires low-impedance connection.