S. CRISTOLOVEANU
How Many Gates Do We Need in A Transistor: One, Two, Three or Four?

Abstract. The migration from single-gate to multiple-gate SOI transistors is inexorable but still includes a number of hesitations and dilemmas. In this context, we review the main motivations, technological achievements, physics-related implications and future challenges. Specific aspects governing the operation of multiple-gate transistors are discussed with the aim of clarifying the strategic trends. The physics mechanisms are briefly evoked. The road is difficult with many turns; hopefully, it looks long enough. Generic milestones are: nano-size, multiple-gates, innovative ideas and multi-facet SOI technology.

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