Improving Transient Error Tolerance of Digital VLSI Circuits Using RObustness COmpiler (ROCO)
ISQED '06 Proceedings of the 7th International Symposium on Quality Electronic Design
Soft error reduction in combinational logic using gate resizing and flipflop selection
Proceedings of the 2006 IEEE/ACM international conference on Computer-aided design
Circuit and Latch Capable of Masking Soft Errors with Schmitt Trigger
Journal of Electronic Testing: Theory and Applications
Soft Error Rate Reduction Using Circuit Optimization and Transient Filter Insertion
Journal of Electronic Testing: Theory and Applications
Circuit optimization techniques to mitigate the effects of soft errors in combinational logic
ACM Transactions on Design Automation of Electronic Systems (TODAES)
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Technology scaling has led to reduced noise margins and increased susceptibility of logic circuits to transient errors. In this paper, a novel methodology to increase the robustness of combinational circuits to transient errors is proposed. The number of errors propagated to the primary outputs (POs) is minimized by adding optimal amounts of capacitive loading to the POs of the logic circuit. Using a novelDelay-Assignment-Variation (DAV) based optimization methodology, the sizes, supply voltages and threshold voltages of internal gates (not primary outputs) are chosen to minimize the energy and delay overhead due to the added loads. Experiments on ISCAS'85 benchmarks show that 79.3% soft-error reduction can be obtained on the average with modest increase in circuit delay and energy. Comparison with other techniques shows that our technique has a much better energy-delay-reliability trade-off compared to others.