The G 4 -FET: a universal and programmable logic gate

The G 4 -FET, a four-gate transistor compatible with standard silicon-on-insulator (SOI) CMOS technology, provides unique opportunities as a logic device. Combining both JFET- and MOSFET-like actions within one transistor body, the G 4 -FET offers two side (lateral) junction-based gates, a top MOS gate, and a MOS back gate that is activated by SOI substrate biasing. The G 4 -FET's conduction characteristics are controlled by the combined interaction of these four gates. In this paper, the G 4 -FET is demonstrated as a logic device, resulting in a universal and programmable logic gate that can lead to the design of more efficient logic circuits. As an example, we present a new full adder design based on the G 4 -FET that is significantly more efficient than conventional designs.