Towards Design Flow for Space-Efficient Implementation of Polymorphic Circuits Based on Ambipolar Components

polymorphic electronics, ambipolar behaviour, circuit synthesis, evolutionary design, Boolean division, kernelling, design techniques

Main objective of this contribution is to present a unified design flow for an efficient implementation of polymorphic circuits. First of all, it employs an evolutionary inspired techniques that facilitates the creation of multifunctional circuit elements (i.e. logic gates) based on emerging materials and nano-structures exhibiting the ambipolar behavior. Those logic gates consists of individual transistors where the conduction mode (N- or P-channel) is controlled by switching the power rails.

Unfortunately, conventional design methods and algorithms are not directly applicable for a design of polymorphic circuits without the need to face major changes. Hence the other important part of the suggested design flow is comprising the necessary circuit synthesis technique using those multifunctional logic gates. The presented circuit synthesis approach makes it feasible to achieve an area-efficient results in case of complex polymorphic circuit involving hundreds of gates. Its core is based on the utilization of Boolean division principles and function kernelling technique.