Jun Shiomi

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A cross-coupled inverter which is an essential element of on-chip memory subsystems plays an important role in synchronous LSI circuits. In this paper, an analytical stability model for a cross-coupled inverter operating in a sub-threshold voltage region is proposed. The proposed model analytically shows that the minimum operating voltage of the(More)
Active control of oscillatory thermocapillary flow was applied in an open cylindrical container filled with silicone oil. Thermocapillary convection was driven by imposing a radial temperature gradient on a flat free surface. The control was realized by locally heating the surface at a single position using the local temperature signal at a different(More)
This paper proposes a standard-cell based memory (SCM) as an alternative to a traditional on-chip SRAM for near-threshold voltage computing. It focuses on area- and energy-efficiency using minimum height standard-cells. Unlike conventional SCMs, the proposed SCM has standard-cells with a minimum possible cell height allowed by the logic design rule of the(More)
Near-threshold computing has emerged as a promising solution for drastically improving the energy efficiency of microprocessors. This paper proposes architectural-level statistical static timing analysis (SSTA) models for the near-threshold voltage computing where the path delay distribution is approximated as a lognormal distribution. First, we prove(More)
Near-threshold computing has emerged as a promising solution for drastically improving the energy efficiency of CMOS circuits. The paper proposes an improved logical effort model that can be used for optimum gate sizing of near-threshold circuits. First, we propose an improved logical effort model which help circuit designers consider not only delay(More)
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