Ultra-Compact Ternary Logic Gates Based on Negative Capacitance Carbon Nanotube FETs

Breaking the Limits in Ternary Logic: An Ultra-Efficient Auto-Backup/Restore Nonvolatile Ternary Flip-Flop Using Negative Capacitance CNTFET Technology

“…Based on this unique behavior, a Schmitt trigger-based STI gate is demonstrated by utilizing only two transistors (similar to a conventional binary inverter). This extraordinary feature of this 2-transistors NC-CNTFET-based STI was not demonstrated in [26].…”

“…After interpreting the results, it can be observed that for lower V GS values, increasing the ferroelectric thickness causes a negative slope in the NC-CNTFET current. This phenomenon, known as the NDR effect, is the basis of the ferroelectric FETs nonvolatile memory applications [26].…”

“…However, these circuits suffer from high transistor count and feeble noise margin [21], [22]. Recently, by employing the NDR effect observed in NC-CNTFETs, an STI gate with a similar transistor count to its conventional binary counterpart has been presented in [26]. However, the physical device engineering, such as different flat-band voltages was essential to acquire a voltage transfer characteristic (VTC) similar to the conventional STI gates.…”

“…It has recently been demonstrated that by employing the negative differential resistance (NDR) effect in the negative capacitance CNTFETs (NC-CNTFETs), ternary logic gates can be realized with structures similar to their binary counterparts [26]. Despite significant energy saving and compression, these ternary logic gates require different flat-band voltages for correct operation.…”

Ultra-Low Energy CNFET-Based Ternary Combinational Circuits Designs

“…Thus, researchers became highly interested in MVL and implemented it in different scopes such as healthcare ap- plications [4], Memory [5], [6], RRAM (Resistive Random Access Memory) [7], Ternary Logic Systems [8], [9], and VOLUME 9, 2021 In ternary logic circuits, most of the researchers reached logical state 1 using one power supply. They divided the voltage using two diode-connected transistors that act similar to resistors.…”