Experiments on traveling salesman heuristics
SODA '90 Proceedings of the first annual ACM-SIAM symposium on Discrete algorithms
Parameter variations and impact on circuits and microarchitecture
Proceedings of the 40th annual Design Automation Conference
Efficient techniques for gate leakage estimation
Proceedings of the 2003 international symposium on Low power electronics and design
Selective gate-length biasing for cost-effective runtime leakage control
Proceedings of the 41st annual Design Automation Conference
Self-Compensating Design for Focus Variation
Proceedings of the 42nd annual Design Automation Conference
How accurately can we model timing in a placement engine?
Proceedings of the 42nd annual Design Automation Conference
Defocus-aware leakage estimation and control
ISLPED '05 Proceedings of the 2005 international symposium on Low power electronics and design
Detailed placement for improved depth of focus and CD control
Proceedings of the 2005 Asia and South Pacific Design Automation Conference
Pattern sensitive placement for manufacturability
Proceedings of the 2007 international symposium on Physical design
| Hi-index | 0.00 |
We present a novel detailed placement technique that accounts for systematic through-pitch variations to reduce leakage. Leakage depends nearly exponentially on linewidth (gate length), and even small variations in linewidth introduce large variability in leakage. A substantial fraction of linewidth variation is systematic with respect to the device layout context. Detailed placement changes context of the devices that are near the cell boundaries and can be used to reduce leakage. Our approach modifies the placement of cells in small windows such that contexts that reduce leakage are created. During this optimization, cells are partitioned into rows and then placed in rows using a traveling salesman problem formulation.