Building logic gates out of silicon is old hat, as is building them from discrete transistors, 555 chips, LEGO, and even gears. [Yukio-Pegio Gunji] and [Yuta Nishiyama] from Kobe University, along … ...

Pairs of gates can be used to create AND and OR logic based on the levels of output observed. When a pair of gates are both off, output is low; it's higher for a one-on/one-off situation (OR) and ...

Figure 1 illustrates how YES, NOT, AND, OR, NAND, and NOR gates are implemented in RFL using a 2N7000 N-channel MOSFET and a 5V supply. (Note that the XOR and XNOR functions have been omitted here, ...

The common CMOS gates in Figure 1 have aninput threshold voltage in which the output swingsfrom logic zero to logic one, and vice versa. The thresholdvoltage depends on the supply voltage (Figure ...