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- Amith Singhee, Rob A. Rutenbar
- IEEE Transactions on Computer-Aided Design of…
- 2009

Circuit reliability under random parametric variation is an area of growing concern. For highly replicated circuits, e.g., static random access memories (SRAMs), a rare statistical event for one circuit may induce a not-so-rare system failure. Existing techniques perform poorly when tasked to generate both efficient sampling and sound statistics for these… (More)

- Amith Singhee, Rob A. Rutenbar
- 2007 Design, Automation & Test in Europe…
- 2007

Circuit reliability under statistical process variation is an area of growing concern. For highly replicated circuits such as SRAMs and flip flops, a rare statistical event for one circuit may induce a not-so-rare system failure. Existing techniques perform poorly when tasked to generate both efficient sampling and sound statistics for these rare events.… (More)

- Amith Singhee, Rob A. Rutenbar
- ISQED
- 2007

Problems in computational finance share many of the characteristics that challenge us in statistical circuit analysis: high dimensionality, profound nonlinearity, stringent accuracy requirements, and expensive sample simulation. We offer a detailed experimental study of how one celebrated technique from this domain -Quasi-Monte Carlo (QMC) analysis -can be… (More)

The introduction of simulation-based analog synthesis tools creates a new challenge for analog modeling. These tools routinely visit 103 to 105 fully simulated circuit solution candidates. What might we do with all this circuit data? We show how to adapt recent ideas from large-scale data mining to build models that capture significant regions of this… (More)

This paper presents two fast and accurate methods to estimate the lower bound of supply voltage scaling for standby SRAM/Cache leakage power reduction of an SRAM array. The data retention voltage (DRV) defines the minimum supply voltage for a cell to hold its state. Within-die variation causes a statistical distribution of DRV for individual cells in a… (More)

- Amith Singhee, Rob A. Rutenbar
- IEEE Transactions on Computer-Aided Design of…
- 2010

At the nanoscale, no circuit parameters are truly deterministic; most quantities of practical interest present themselves as probability distributions. Thus, Monte Carlo techniques comprise the strategy of choice for statistical circuit analysis. There are many challenges in applying these techniques efficiently: circuit size, nonlinearity, simulation time,… (More)

- Amith Singhee, Jiajing Wang, Benton H. Calhoun, Rob A. Rutenbar
- VLSI Design
- 2008

Circuit reliability under statistical process variation is an area of growing concern. For highly replicated circuits such as SRAMs and flip flops, a rare statistical event for one circuit may induce a not-so-rare system failure. The authors of [1] proposed Statistical Blockade as a Monte Carlo technique that allows us to efficiently filter—to… (More)

- Amith Singhee, Rob A. Rutenbar
- 2007 44th ACM/IEEE Design Automation Conference
- 2007

The number and magnitude of process variation sources are increasing as we scale further into the nano regime. Today's most successful response surface methods limit us to low-order forms -- linear, quadratic -- to make the fitting tractable. Unfortunately, not all variation-al scenarios are well modeled with low-order surfaces. We show how to exploit… (More)

- Amith Singhee, Rob A. Rutenbar
- Lecture Notes in Electrical Engineering
- 2009

As VLSI technology moves to the nanometer scale for transistor feature sizes, the impact of manufacturing imperfections result in large variations in the circuit performance. Traditional CAD tools are not well-equipped to handle this scenario, since they do not model this statistical nature of the circuit parameters and performances, or if they do, the… (More)

- Amith Singhee, Sonia Singhal, Rob A. Rutenbar
- ICCAD
- 2008

Statistical static timing analysis (SSTA) has emerged as an essential tool for nanoscale designs. Monte Carlo methods are universally employed to validate the accuracy of the approximations made in all SSTA tools, but Monte Carlo itself is never employed as a strategy for practical SSTA. It is widely believed to be "too slow" -- despite an uncomfortable… (More)