Ultra low-voltage digital floating-gate UVMOS (FGUVMOS) circuits

This paper describes a novel technique for implementing ultra low-voltage/low-power digital circuits. The threshold and supply voltage can be set to desired values while exposing the chip to UV-light. UV-light activated conductances between the power supply-rails and the floating gates are used to program the desired threshold shift in any standard double poly CMOS process. Measured characteristic of a programmed inverter is shown.