Abstract
Systematic effort dedicated to the exploration of feasible ways how to permanently come up with even more space-efficient implementation of digital circuits based on conventional CMOS technology node may soon reach the ultimate point, which is mostly given by the constraints associated with physical scaling of fundamental electronic components. One of the possible ways of how to mitigate this problem can be recognized in deployment of multifunctional circuit elements. In addition, the polymorphic electronics paradigm, with its considerable independence on a parti- cular technology, opens a way how to fulfil this objective through the adoption of emerging semiconductor materials and advanced synthesis methods. In this paper, main attention is focused on the introduction of polymorphic operators (i.e. digital logic gates) that would allow to further increase the efficiency of multifunctional circuit synthesis techniques. Key aspect depicting the novelty of the proposed approach is primarily based on the intrinsic exploitation of components with ambi- polar conduction property. Finally, relevant models of the polymorphic operators are presented in conjunction with the experimental results
Highlights
Endless trend of downscaling CMOS technology features in almost linear manner according to the Moore’s law [1], as it was a rather common practice during several previous decades, has enabled the semiconductor industry to fit an ever-increasing number of devices per unit area and achieve higher performance expressed as unit of energy spent in performing computational tasks
Systematic effort dedicated to the exploration of feasible ways how to permanently come up with even more space-efficient implementation of digital circuits based on conventional CMOS technology node may soon reach the ultimate point, which is mostly given by the constraints associated with physical scaling of fundamental electronic components
The polymorphic electronics paradigm, with its considerable independence on a particular technology, opens a way how to fulfil this objective through the adoption of emerging semiconductor materials and advanced synthesis methods
Summary
Endless trend of downscaling CMOS technology features in almost linear manner according to the Moore’s law [1], as it was a rather common practice during several previous decades, has enabled the semiconductor industry to fit an ever-increasing number of devices per unit area and achieve higher performance expressed as unit of energy (watt) spent in performing computational tasks. Recent advancements within the field of digital design techniques and components for digital circuits provide a vital evidence that yet another feasible strategy may be employed—area and time-efficient circuit design based on utilization of individual structural elements exhibiting multifunctional nature [3]. In this case, the entity of multifunctional circuit is devised as a compact structure involving set of multifunctional components, where their mutual, low-level interconnection scheme remains untouched in all allowable operating modes and only the active function of these components is expected to change intentionally.
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