A Class of MOS Voltage Controlled Negative Differential Resistance Circuits for VLSI Adaptive Systems

A class of negative differential resistance circuits is developed for realization with standard NMOS/CMOS processes. The circuits are optimized in regard to the negative slope and the power dissipation. There are both pure NMOS and CMOS and mixed NMOS/CMOS circuits which have been simulated, designed and realized. The circuits are well suited for VLSI memories, multiple-valued logic and adaptive systems which can play an important role for fault-tolerant systems and AI applications.