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Worst-case design uses extreme process corner conditions which rarely occur. This limits maximum speed specifications and costs additional power due to area over-dimensioning during synthesis. We present a new design synthesis strategy for digital CMOS circuits that makes use of forward body biasing. Our approach renders consistently a better performance-per-area ratio by constraining circuit over-dimensioning...
A novel GALS (globally asynchronous locally synchronous) asynchronous communication circuit which adopts the single-track handshake protocol is proposed. The circuit can complete data transmissions without acknowledgement signals. The backward transition of the circuit becomes delay-insensitive by adding an NCL (null convention logic) threshold gate in the RTZ (return to zero) process. The circuit...
The implementation of complex functionality in low-power nano-CMOS technologies leads to enhance susceptibility to parametric disturbances (environmental, and operation-dependent). The purpose of this paper is to present recent improvements on a methodology to exploit power-supply voltage and temperature variations in order to produce fault-tolerant structural solutions. First, the proposed methodology...
This paper studies the impact of intra-die random variability on low-power digital circuit designs, specifically, circuit timing failures due to intra-die variability. We identify a new low-Vdd statistical failure mode that is strongly supply-voltage dependent and also introduce a simple yet novel method for quantifying the effects of process variability on digital timing - a delay overlapping stage...
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